2197-Z03/12

Air circuit breakers ARION WL

WWW.OEZ.COM

Air circuit breakers ARION WL 

CONTENT – Commercial information 

CONTENT – Technical information 

DATA FOR SELECTION OF CIRCUIT BREAKER AND SWITCH-DISCONNECTOR .........................................................2 

ADVANTAGES OF CIRCUIT BREAKERS ARION WL .........................................................................................................5 

OVERVIEW OF TYPES AND ACCESSORIES .......................................................................................................................6 

DATA FOR SELECTION OF OVERCURRENT RELEASE .....................................................................................................9 

MEANING OF TYPE DESIGNATION POSITIONS ............................................................................................................10 

STANDARD EQUIPMENT OF CIRCUIT BREAKER/SWITCH-DISCONNECTOR ..........................................................10 

QUICK COMPOSITION OF TYPE DESIGNATION ............................................................................................................11 

PROCEDURE FOR TYPE DESIGNATION COMPOSITION ..............................................................................................12 

OFFER OF STANDARD CIRCUIT BREAKERS AND SWITCH-DISCONNECTORS ........................................................14 

COMPOSITION OF TYPE DESIGNATION of 3-pole circuit breakers, switch-disconnectors for AC operation 

Fixed design ................................................................................................................................................................18 

Withdrawable design ..................................................................................................................................................20 

COMPOSITION OF TYPE DESIGNATION of 4-pole circuit breakers, switch-disconnectors for AC operation 

Fixed design ................................................................................................................................................................22 


COMPOSITION OF TYPE DESIGNATION of 3 and 4-pole switch-disconnectors for DC operation 

Fixed design ................................................................................................................................................................26 


BASIC ACCESSORIES - drives, auxiliary releases and switches ....................................................................................28 

ADDITIONAL ACCESSORIES 

Method of connection, terminal boards of auxiliary circuits ........................................................................................29 

Closing release and motor drives with different operating voltage, opening release ..................................................30 

Rated voltage 1000 V ..................................................................................................................................................31 

Rated current modules ................................................................................................................................................31 

Signal switches ...........................................................................................................................................................31 

Control presentation ...................................................................................................................................................32 

Data communication and measurement .....................................................................................................................32 

Blocking and locking ...................................................................................................................................................33 

Covers, door sealing frame ..........................................................................................................................................34 

SEPARATELY DELIVERED ACCESSORIES 

Connecting sets ..........................................................................................................................................................35 


Rated current modules ................................................................................................................................................39 

Test device ..................................................................................................................................................................39 

CubicleBUS modules and cables ..................................................................................................................................39 

Voltage sources ...........................................................................................................................................................39 

Data communication – BDA adapter, parameterization software ...............................................................................40 

Voltage transformers ..................................................................................................................................................40 

External current transformers for N conductor ............................................................................................................40 

Auxiliary power source for shunt release .....................................................................................................................41 

Bowden cables for mechanical interlocking ................................................................................................................41 

Sealable covers of overcurrent release ........................................................................................................................41 

Door sealing frame ......................................................................................................................................................41 

Transparent cover ........................................................................................................................................................41 

Arc chute cover for withdrawable device .....................................................................................................................41 

Bearing angle .............................................................................................................................................................41 

ACCESSORIES FOR ADDITIONAL INSTALLATION BY OEZ SERVICE ...........................................................................42 

see page 49 

1

ARION WL - Commercial information 

Data for selection of circuit breakers 

››› for AC operation 

Size I II III 

Rated current I n 

630 A 

800 A 

1000 A 

1250 A 

1600 A 

800 A 

1000 A 


1600 A 

2000 A 

2500 A 

4000 A 

5000 A 

6300 A 

3200 A 

Rated operating voltage U e 

690 V a.c. 690 V a.c. 

(1000 A a.c.) 

690 V a.c. 

(1000 A a.c.) 

Rated frequency f n 

50/60 Hz 50/60 Hz 50/60 Hz 

Rated short-circuit ultimate 

breaking capacity 

I cu 

N - 50 kA/440 V a.c. 

S - 65 kA/440 V a.c. 

Rated short-time withstand current I cw 

N - 42 kA /1 s 

S - 50 kA/1 s 

Rated short-circuit 

making capacity 

I cm 

N - 105 kA/440 V a.c. 

S - 143 kA/440 V a.c. 

N - 55 kA/440 V a.c. 

S - 80 kA/440 V a.c. 

H - 100 kA/440 V a.c. 

N - 55 kA /1 s 

S - 65 kA /1 s 

H - 80 kA /1 s 

N - 121 kA/440 V a.c. 

S - 176 kA/440 V a.c. 

H - 220 kA/440 V a.c. 

H - 100 kA/440 V a.c. 

H - 80 kA /1 s (I n 

= 4000, 5000 A) 

H - 100 kA /1 s (I n 

= 6300 A) 

H - 220 kA/440 V a.c. 

Number of poles 3, 4 3, 4 3, 4 

Max. rated current of the circuit breaker I n 

[A] 



I cu 

at 440 V [kA] a.c. 

fi x e d 

3/4 pole 

Dimensions 

withdrawable 

3/4 pole 

630 

291 / 291 

385 / 385 

depth 

Dimensions III Dimensions II Dimensions I 

800 

1000 

1250 

1600 

800 

1000 


1600 

2000 

2500 

3200 

4000 

5000 

6300 

N 

S 

55 65 

N S H 

50 80 100 

H 

100 

434 / 434 

320 / 410 

291 / 291 

434 / 434 

460 / 590 

291 / 291 

434 / 434 

704 / 914 

460 / 460 

320 / 410 

385 / 385 

460 / 460 

460 / 590 

385 / 385 

460 / 460 

704 / 914 

height 

width 

depth 

height 

width 

depth 

height 

width 

2


Data for selection of switch-disconnector 


Size I II III 


630 A 

800 A 

1000 A 


1600 A 

800 A 

1000 A 


1600 A 

2000 A 

2500 A 

4000 A 

5000 A 

6300 A 

3200 A 


690 V a.c. 690 V a.c. 

(1000 A a.c.) 

690 V a.c. 

(1000 A a.c.) 


50/60 Hz 50/60 Hz 50/60 Hz 



I cu 

N - 105 kA/440 V a.c. 

S - 143 kA/440 V a.c. 


N - 42 kA /1 s 

S - 50 kA/1 s 


S - 176 kA/440 V a.c. 

H - 220 kA/440 V a.c. 

N - 65 kA /1 s 

S - 55 kA /1 s 

H - 80 kA /1 s 

H - 220 kA/440 V a.c. 

H - 80 kA /1 s (I n 

= 4000, 5000 A) 

H - 100 kA /1 s (I n 

= 6300 A) 


Data for selection of switch-disconnector 

››› for DC operation 

Size 

II 


1000 A 

2000 A 

4000 A 


300 V d.c. 

600 V d.c. 

1000 V d.c. 

Rated conditional short-circuit current I cc 

30 kA/300 V d.c. 

25 kA/600 V d.c. 

20 kA/1000 V d.c. 


55 kA /1 s 

65 kA /1 s 

80 kA /1 s 



I cm 

30 kA/300 V d.c. 

25 kA/600 V d.c. 

20 kA/1000 V d.c. 

Number of poles 3, 4 

for possible protection of DC circuits, please call technical assistance. See the cover sheet for contact. 

3


NOTES 

4


NOTES 

5


OVERVIEW OF TYPES AND ACCESSORIES 

1 Withdrawable device 

2 Front, flanged, horizontal and vertical connection 

3 Position signal switches 

4 Earthing contact 

5 Insulation cover 

2 

6 COM 15 PROFIBUS module 

7 Cubicle BUS modules 

8 Closing/shunt release, undervoltage release 

9 Connector and terminal boards of auxiliary circuits 

10 Auxiliary switches 

11 Door sealing frame 

12 Protective caps for mechanical On/Off 

13 Emergency OFF push-button 

3 

1 

4 

14 Locking device against unauthorized closing 

15 Motor drive 

16 Cycle counter 

17 BSS module 

18 Overcurrent release 

19 Remote reset electromagnet 

20 BDA adapter 

21 

19 

21 Display 

22 Earth-fault protection module 

23 Rated current module (rating plug) 

24 Measuring function module 

22 

25 Air circuit breaker ARION WL 

18 

23 

24 

20 

6


DATA FOR SELECTION OF OVERCURRENT 

6 

7 

5 

8 

9 

11 

25 10 

12 

17 

15 

13 14 

16 

7


NOTES 

8


DATA FOR SELECTION OF OVERCURRENT RELEASE 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I R 

I sd 

t sd 

Overcurrent release name ETU15B ETU25B ETU27B ETU45B ETU55B ETU76B 

Overload protection L + + + + + + 

Short-time delayed short-circuit protection S – + + + + + 

Instantaneous short-circuit protection I + + + + + + 

Neutral conductor protection N – – + + + + 

Earth-fault protection G – – + 

Additional functions + 

Neutral conductor protection On/Off – – +/+ +/+ +/+ +/+ 

Short-time delayed short-circuit protection On/Off – – – +/+ +/+ +/+ 

Instantaneous short-circuit protection On/Off – – – +/+ +/+ +/+ 

Thermal memory On/Off – – – + + + 

Load guarding – – – + + + 

Short-time delayed short-circuit protection 

switchable to I 2 t 

– – – + + + 

Instantaneous short-circuit protection adjustable + – – + + + 

Overload protection switchable to I 4 t – – – + + + 

Overload protection On/Off – – – – + + 

Adjustable neutral conductor protection N – – – + + + 

Switchable parameter sets – – – – + + 

Parameterization and display 

Parameterization by rotary switches (10 positions) + + + + – – 

Parameterization by means of communication 

(absolute values) 

– – – – + + 

Parameterization by means of menu (absolute values) – – – – – + 

Remote parameterization of basic functions – – – – + + 

Remote parameterization of additional functions – – – + + + 

4-line LCD – – – – – 

Graphic LCD – – – – – + 

Measuring function 

Measuring function Plus – – – 

Communication 

CubicleBUS – – – + + + 

PROFIBUS-DP/MODBUS – – – 

Ethernet – – – 

+ YES, – NO, Optional 

9


MEANING OF TYPE DESIGNATION POSITIONS 

Example of type designation: ARION WL1220-3CB36-4GA2-Z +K07 

Position number: 5 6 - 7 8 9 - 10 11 12 13 14 15 16 

Type designation: ARION WL1 2 20 - 3 CB 3 6 - 4 G A 2 - Z +K07 

Size 

Rated current 

Rated short-circuit ultimate breaking capacity 

Overcurrent release 

Number of poles 

Design and type of connection 

Drive 

1st auxiliary release 

2nd auxiliary release 

Auxiliary switches 

Accessories (it is possible to fill in more codes at a time) 

ARION WL1220-3CB36-4GA2-Z +K07 

Parameters and description of circuit breaker according to positions: 

5) size II 

6 - 7) rated current I n 

= 2000 A 

8) rated short-circuit ultimate breaking capacity I cu 

= 80 kA 

9 - 10) overcurrent release ETU25B 

11) 3-pole design 

12) withdrawable design, rear horizontal connection 

13) hand and motor drive with closing release for 230 V a.c./220 V d.c. 

14) shunt release 230 V a.c./220 V d.c. 

15) without 2nd auxiliary release 

16) 2 closing and 2 opening auxiliary contacts 

Accessory code - signal switch „switched off by overcurrent release“ - K07 

STANDARD EQUIPMENT OF CIRCUIT BREAKER/SWITCH-DISCONNECTOR 

Each circuit breaker/switch-disconnector has the following standard equipment 

Fixed design 

Push-button for mechanical ON 

Push-button for mechanical OFF 

Hand drive with energy-storing mechanism 

Mechanical indicator of circuit breakers On/Off state 

Mechanical indicator of energy-storing mechanism state - wound up/released 

Mechanical indicator of „ready-to-close“ state 

Auxiliary switches - 2 closing and 2 break contacts 

Terminal board and connectors for connection of auxiliary circuits - the circuit 

breaker/switch-disconnector is always equipped with all necessary terminal 

boards and connectors; terminal board has screw terminals 

Mechanical indicator of switching off by overcurrent release 

Mechanical interlocking of reset after switching off by overcurrent release 

Withdrawable design - withdrawable design contains additionally: 

Mechanical indicator of the circuit breaker position in the 

withdrawable device 

Locking device against circuit breaker shifting using a padlock 

10


QUICK COMPOSITION OF TYPE DESIGNATION 

The table can be used for quick and simple selection and composition of type designation of a circuit breaker/switch-disconnector ARION WL. 

The table contains only common types of circuit breakers/switch-disconnectors. For complete offer, use the catalogue. 

Type designation: ARION WL1 2 20 - 3 CB 3 6 - 4 G A 2 - Z +K07 

Size 

size I from 630 to 1600 A 1 

size II from 800 to 3200 A 2 

size III from 4000 to 6300 A 3 

Rated current 

630 A only size I 06 

800 A recommended size I 08 


1250 A recommended size I 12 


2000 A only size II 20 



4000 A only size III 40 




N – ECO 50 kA for size I, 55 kA for size II 2 

S – STANDARD 80 kA for size II, 65 kA for size I 3 

H – HIGH 100 kA for size II and size III 4 


without overcurrent release Switch-disconnector AA 

ETU25B Circuit breaker CB 

ETU45B - without display Circuit breaker EB 

ETU45B - with display Circuit breaker FB 

ETU76B - with graphic display Circuit breaker NB 

Design 

3 – pole 3 

4 – pole 4 

Design 

fixed rear vertical connection 1 

fixed rear horizontal connection 2 

fixed front connection 4 

withdrawable rear horizontal connection 6 

withdrawable rear vertical connection 7 

Drive 

hand drive 1 

hand and motor drive, closing release 230 V a.c./220 V d.c. 4 

hand and motor drive, closing release 110 V a.c./d.c. 5 

hand and motor drive, closing release 24 V d.c. 6 


without 1st auxiliary release A 

shunt release 24 V d.c. B 

shunt release 110 V a.c./d.c. F 

shunt release 230 V a.c./220 V d.c. G 


without 2nd auxiliary release A 

shunt release 24 V d.c. B 

shunt release 110 V a.c./d.c. F 

shunt release 230 V a.c./220 V d.c. G 

undervoltage release 24 V d.c. J 

undervoltage release 110 V a.c./d.c. M 

undervoltage release 230 V a.c./220 V d.c. N 


2 NO + 2 NC 2 

4 NO + 4 NC 4 

Accessories (it is possible to fill in more codes at a time) 

Push-button electrically ON on the front panel C11 

Signal switch of the energy-storing mechanism state C20 

Signal switch „ready-to-close” C22 

Signal switch „switched off by release“ K07 

Position signal switches in the plug-in frame R15 

Door sealing frame T40 

Locking device against unauthorized tripping on the front control panel S01 

Example of type designation: ARION WL1220-3CB36-4GA2-Z +K07 

11


PROCEDURE FOR TYPE DESIGNATION COMPOSITION 

Steps for correct composition 

For correct composition of type designation, follow the following steps as described and illustrated on the example. 

1. Determination of circuit breaker type in the catalogue content - 3 or 4-pole circuit breaker/switch-disconnector for AC or DC application of fixed or withdrawable design 

2. Determination of type designation basis according to: - connection type 

- rated current 

- rated ultimate short-circuit breaking capacity 

3. Determination of overcurrent release - for selection it is possible to use detailed table on page 9 „Data for selection of overcurrent release“ 

4. Selection of basic accessories - drives, auxiliary releases and switches 

5. Selection of additional accessories 

It is also possible to order separately delivered accessories for the circuit breakers. 

Steps 1 - 4 are mandatory for the composition of complete type designation for ordering. Step 5 depends on other requirements for the circuit breaker. 

Example of type designation composition 

1. Determination of the circuit breaker/switch-disconnector type in the catalogue content 

Catalogue content 

Page 1 

2. Determination of the type designation basis according to: - connection type 

- rated current 

- rated ultimate short-circuit breaking capacity 

Type designation basis: ARION WL 1220-232- 

Page 18 

3. Determination of overcurrent release 

Type designation including overcurrent release: ARION WL1220-2CB32- 

Page 18 

12


PROCEDURE IN COMPOSITION OF TYPE DESIGNATION 

4. Selection of basic accessories 

Type designation: ARION WL 1220-2CB32-4GA2 

Page 28 

5. Selection of additional accessories 

Complete type designation: ARION WL 1220-2CB32-4GA2-Z K07 

Page 31 

13


OFFER OF STANDARD CIRCUIT BREAKERS AND SWITCH-DISCONNECTORS 

3P 

Circuit breakers, 3-pole design 

Fixed design 

Withdrawable design 

Type Product code Description Weight [kg] 

ARION WL1110-3CB32-1GA2 19209 I n 

= 1000 A, size 1, I cu 

= 65 kA 43 


= 1600 A, size 1, I cu 

= 65 kA 43 

- overcurrent release ETU25B 

- hand drive, mechanical On/Off 

- shunt release 230 V a.c./ 220 V d.c. 

- auxiliary switch S1 and S2 (2Z + 2R) 

- rear horizontal connection 

ARION WL1220-3CB32-1GA2 19216 I n 

= 2000 A, size 2, I cu 

= 80 kA 56 


= 2500 A, size 2, I cu 

= 80 kA 59 


= 3200 A, size 2, I cu 

= 80 kA 64 







= 4000 A, size 3, I cu 

= 100 kA 82 


= 5000 A, size 3, I cu 

= 100 kA 82 


= 6300 A, size 3, I cu 

= 100 kA 90 





- rear horizontal connection (6300 A - rear vertical connection) 



= 1000 A, size 1, I cu 

= 65 kA 70 


= 1600 A, size 1, I cu 

= 65 kA 70 







= 2000 A, size2, I cu 

= 80 kA 91 


= 2500 A, size 2, I cu 

= 80 kA 102 


= 3200 A, size 2, I cu 

= 80 kA 113 







= 4000 A, size 3, I cu 

= 100 kA 148 


= 5000 A, size 3, I cu 

= 100 kA 148 


= 6300 A, size 3, I cu 

= 100 kA 178 






In your order always state both type designation and product code, if any 

14



4P 

Circuit breakers, 4-pole design 

Fixed design 



= 1000 A, size 1, I cu 

= 65 kA 50 


= 1600 A, size 1, I cu 

= 65 kA 50 







= 2000 A, size 2, I cu 

= 80 kA 67 


= 2500 A, size 2, I cu 

= 80 kA 71 


= 3200 A, size 2, I cu 

= 80 kA 77 







= 4000 A, size 3, I cu 

= 100 kA 99 


= 5000 A, size 3, I cu 

= 100 kA 99 


= 6300 A, size 3, I cu 

= 100 kA 108 








= 1000 A, size 1, I cu 

= 65 kA 84 


= 1600 A, size 1, I cu 

= 65 kA 84 







= 2000 A, size 2, I cu 

= 80 kA 106 


= 2500 A, size 2, I cu 

= 80 kA 123 


= 3200 A, size 2, I cu 

= 80 kA 136 







= 4000 A, size 3, I cu 

= 100 kA 190 


= 5000 A, size 3, I cu 

= 100 kA 190 


= 6300 A, size 3, I cu 

= 100 kA 227 







15



3P 

Switch-disconnector, 3-pole design 

Fixed design 


ARION WL1110-3AA32-1GA2 19319 I n 

= 1000 A, size 1 43 


= 1600 A, size 1 43 





ARION WL1220-3AA32-1GA2 19380 I n 

= 2000 A, size 2 56 


= 2500 A, size 2 59 


= 3200 A, size 2 64 





ARION WL1340-4AA32-1GA2 19412 I n 

= 4000 A, size 3 82 


= 5000 A, size 3 82 


= 6300 A, size 3 90 








= 1000 A, size 1 70 


= 1600 A, size 1 70 






= 2000 A, size 2 91 


= 2500 A, size 2 102 


= 3200 A, size 2 113 






= 4000 A, size 3 148 


= 5000 A, size 3 148 


= 6300 A, size 3 178 






16



4P 

Switch-disconnector, 4-pole design 

Fixed design 



= 1000 A, size 1 50 


= 1600 A, size 1 50 






= 2000 A, size 2 67 


= 2500 A, size 2 71 


= 3200 A, size 2 77 






= 4000 A, size 3 99 


= 5000 A, size 3 99 


= 6300 A, size 3 108 








= 1000 A, size 1 84 


= 1600 A, size 1 84 






= 2000 A, size 2 106 


= 2500 A, size 2 123 


= 3200 A, size 2 136 






= 4000 A, size 3 190 


= 5000 A, size 3 190 


= 6300 A, size 3 227 






17


COMPOSITION OF TYPE DESIGNATION 

3P 

Fixed design, 3-pole, AC 

Rear horizontal connection 

 

Rear vertical connection 

 

Rated current I 1) 

n 

Rated short-circuit ultimate breaking capacity I cu 

/440 V 

[A] 

50 kA – size I 55 kA – size II 65 kA – size I 

N N S 

630 ARION WL1106-232- - ARION WL1106-332- 



1250 ARION WL1112-232- - ARION WL1112-332- 


2000 - ARION WL1220-232- - 


3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 

Front connection one series of holes 

Front connection two series of holes 

 

 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 

Switch-disconnector unit (switch-disconnector) 2) 

Overcurrent release - without earth-fault protection (circuit breaker) 

Overcurrent release ETU15B – protective function LI 4) 

Overcurrent release ETU25B – protective function LSI 

Overcurrent release ETU45B – protective function LSIN 3) 

Overcurrent release ETU45B – protective function LSIN, 4-line display 3) 


Overcurrent release ETU76B – protective function LSIN, graphic display 3) 

Overcurrent release - with earth-fault protection (circuit breaker) 

Overcurrent release ETU27B – protective function LSING 3) 


Overcurrent release ETU45B – protective function LSING, 4-line display 3) 


Overcurrent release ETU76B – protective function LSING, graphic display 3) 

AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 

Standard type designation 

Hand drive with mechanical closing 

Auxiliary switches: contacts 2200 (2 closing + 2 opening) 

(you will find other accessories on page 28) 

1) 

Rated current is determined by the rated current module (rating plug). The module delivered with standard version corresponds to the maximum rated current of the circuit breaker. If a smaller rated current is required, 

its change is possible, see page 31. 

2) 

Permissible short-time withstand current I cw 

and rated short-circuit making capacity I cm 

of a switch-disconnector see page 51 (only for AC applications). 

3) 

Current transformers for vectorial addition or protection of N conductor shall be ordered separately, see page 40. 

4) 

Power circuit breaker of size III cannot be equipped with an electronic overcurrent release ETU15B. 

For weight see page 51 

18



3P 



n 


/440 V 

80 kA – size II 100 kA – size II 100 kA – size III 


630 

S 

- 

H 

- 

H 

- 

800 ARION WL1208-332- ARION WL1208-432- - 


1250 ARION WL1212-332- ARION WL1212-432- - 





4000 - - ARION WL1340-432- 

5000 - - ARION WL1350-432- 

6300 - - - 


630 - - - 








4000 - - ARION WL1340-431- 

5000 - - ARION WL1350-431- 

6300 - - ARION WL1363-431- 


630 - - - 








4000 - - ARION WL1340-433- 

5000 - - - 

6300 - - - 


630 - - - 








4000 - - ARION WL1340-434- 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 




3) 


4) 



19



3P 

Withdrawable design, 3-pole, AC 


 


n 


/440 V 

[A] 


N N S 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 

Without withdrawable device 


 

Rear flanged connection 

 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 




3) 


4) 



20



3P 



n 


/440 V 



630 

S 

- 

H 

- 

H 

- 








4000 - - ARION WL1340-436- 

5000 - - ARION WL1350-436- 

6300 - - - 


630 - - - 








4000 - - ARION WL1340-435- 

5000 - - ARION WL1350-435- 

6300 - - ARION WL1363-435- 


630 - - - 








4000 - - ARION WL1340-437- 

5000 - - ARION WL1350-437- 

6300 - - ARION WL1363-437- 


630 - - - 








4000 - - ARION WL1340-438- 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 




3) 


4) 



21



4P 



 


 


n 


/440 V 

[A] 


N N S 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 



 

 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 




Internal current transformer for protection of N conductor can be ordered with „F23“ code, see page 32. 

4) 



22



4P 



n 


/440 V 



630 

S 

- 

H 

- 

H 

- 








4000 - - ARION WL1340-442- 

5000 - - ARION WL1350-442- 

6300 - - - 


630 - - - 








4000 - - ARION WL1340-441- 

5000 - - ARION WL1350-441- 

6300 - - ARION WL1363-441- 


630 - - - 








4000 - - ARION WL1340-443- 

5000 - - - 

6300 - - - 


630 - - - 








4000 - - ARION WL1340-444- 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 





4) 



23



4P 



 


n 


/440 V 

[A] 

50 kA –size I 55 kA – size II 65 kA – size I 

N N S 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 



 


 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 








3200 - - - 

4000 - - - 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 





4) 



24



4P 



n 


/440 V 



630 

S 

- 

H 

- 

H 

- 








4000 - - ARION WL1340-446- 

5000 - - ARION WL1350-446- 

6300 - - - 


630 - - - 








4000 - - ARION WL1340-445- 

5000 - - ARION WL1350-445- 

6300 - - ARION WL1363-445- 


630 - - - 








4000 - - ARION WL1340-447- 

5000 - - ARION WL1350-447- 

6300 - - ARION WL1363-447- 


630 - - - 








4000 - - ARION WL1340-448- 

5000 - - - 

6300 - - - 















AA 

BB 

CB 

EB 

FB 

JB 

NB 

DG 

EG 

FG 

JG 

NG 

1AA2 





1) 



2) 





4) 



25


COMPOSITION OF TYPE DESIGNATION 3P 4P 

Fixed design, 3-pole, 4-pole, DC switch-disconnector 



Size 3-pole design 4-pole design 

1000 II ARION WL1210-8AA32- ARION WL1210-8AA42- 


4000 1) II ARION WL1240-8AA32- ARION WL1240-8AA42- 

 





 




 




 

1 A A 2 Standard type designation 


Auxiliary switches: contacts 2200 

(2 closing + 2 opening) 


1) 

Cubicle manufacturer must provide precautions for heat dissipation. 

Permissible rated short-time current I CW 

and short-circuit capacity I CC 

for non-automatic circuit-breakers see page 53. 


26


COMPOSITION OF TYPE DESIGNATION 3P 4P 

Withdrawable design, 3-pole, 4-pole, DC switch-disconnector 



Size 3-pole design 4-pole design 








 





 





 

1 A A 2 Standard type designation 


Auxiliary switches: contacts 2200 

(2 closing + 2 opening) 


1) 

Cubicle manufacturer must provide precautions for heat dissipation. 

Permissible rated short-time current I CW 

and short-circuit capacity I CC 

for non-automatic circuit-breakers see page 53. 


27


BASIC ACCESSORIES 3P 4P 

Selected type designation of ARION WL1-- 

Hand drive with mechanical closing 1 

Hand drive with electrical closing – closing release: load factor 100% 

110 V a.c./110 V d.c. 2 

230 V a.c./220 V d.c. 3 

Motor and hand drive with electrical closing – closing release: load factor 100% 

230 V a.c./220 V d.c. 4 

110 V a.c./d.c. 5 

24 V d.c. 6 

- different operating voltages for motor drive and closing release see page 30 


Without 1st auxiliary release 

A 

Voltage – load factor 100% 

24 V d.c. B 

30 V d.c. C 

48 V d.c. D 

60 V d.c. E 

110 V a.c./d.c. F 

230 V a.c./220 V d.c. G 


Without 2nd auxiliary release 

A 

Voltage – load factor 100% 

24 V d.c. B 

30 V d.c. C 

48 V d.c. D 

60 V d.c. E 

110 V a.c./d.c. F 

230 V a.c./220 V d.c. G 

Undervoltage – short-time delayed 80 or 200 ms 

24 V d.c. J 

30 V d.c. K 

48 V d.c. L 

60 V d.c. U 

110 V a.c./d.c. M 

230 V a.c./220 V d.c. N 

400 V a.c. P 

Undervoltage – delayed 0.2 to 3.2 s 

48 V d.c. Q 

110 V a.c./d.c. R 

230 V a.c./220 V d.c. S 

400 V a.c. T 


2s + 2r 2 

4s + 4r 4 

6s + 2r 7 

5s + 3r 8 

28


ADDITIONAL ACCESSORIES 3P 4P 

Method of connection 

Selected type designation ARION WL1--- Z 

Method of connection of a fixed design circuit breaker 

- If this method of connection is selected, on the 12th place of the type designation there must be „2“ (ARION WL1-2-) 

Upper terminals Lower terminals For circuit breaker size – rated current Code 

rear horizontal connection front connection – one series of holes I-10; I-16; II-20; II25; II-32; III-40 N11 

rear vertical connection rear horizontal connection I-10; I-16; II-20; II25; II-32; III-40; III-50 N20 

rear horizontal connection rear vertical connection I-10; I-16; II-20; II25; II-32; III-40; III-50 N24 

 

Method of connection of a circuit breaker of withdrawable design and of withdrawable device 

- If this method of connection is selected, on the 12th place of the type designation there must be „6“ (ARION WL1-6-) 

Upper terminals Lower terminals For circuit breaker size – rated current Code 

front connection – one series of holes front connection – one series of holes I-10; I-16; II-20; II25; II-32; III-40 P00 

front connection – two series of holes front connection – two series of holes I-10; I-16; II-20; II25; II-32; III-40 P01 

rear horizontal connection front connection – one series of holes I-10; I-16; II-20; II25; II-32; III-40 P07 

rear vertical connection rear horizontal connection I-10; I-16; II-20; II25; II-32; III-40; III-50 P18 

flanged connection rear vertical connection I-10; I-16; II-20; II25; II-32; III-40 P19 

rear horizontal connection rear vertical connection I-10; I-16; II-20; II25; II-32; III-40; III-50 P23 

 



fixed design 


withdrawable design 


withdrawable design 

Front connection 

one series of holes 

Front connection 

two series of holes 

 

 

 

 

 

 

Terminal boards of auxiliary circuits 

Selected type designation 

ARION WL1--- Z 

Method of connection of auxiliary circuits of circuit breaker by means of screwless terminals 

- tension spring principle (normally the circuit breaker is equipped with screw terminals) 

Fixed design of circuit breaker 

Withdrawable design of circuit breaker 

N61 

P61 

 

29



Closing release and motor drives with different operating voltage 

Selected type designation ARION WL1- - -Z 

Closing release 

- load factor 100%; if this method of control is selected, there must be „1” set on the 13th place of the type designation 

Code 

(ARION WL1--1) 

24 V d.c. M21 

30 V d.c. M22 

48 V d.c. M23 

60 V d.c. M24 

110 V a.c./d.c. M25 

230 V a.c./220 V d.c. M26 

 

Closing releases 

- load factor 5% - overexcitation (pull-in time) 25 ÷ 60 ms, max. load time 3 s; if this method of control is selected, there must be „1” set on the 13th place of the type designation 

Kód 


24 ÷ 30 V d.c. M31 

48 ÷ 60 V d.c. M33 

110 V a.c./d.c. M35 

230 V a.c./220 V d.c. M36 

 

Motor drives 

- If this method of control is selected, there must be „1” set on the 13th place of the type designation 

Code 


24 ÷ 30 V d.c. M01 

48 ÷ 60 V d.c. M03 

110 V a.c./d.c. M05 

230 V a.c./220 V d.c. M06 

 

Opening release 

Selected type designation ARION WL1- - -Z 

Opening release 

- load factor 5% - overexcitation (pull-in time) 25 ÷ 60 ms, max. load time 3 s; if this method of control is selected, there must be „A” on the 14th or 15th position of the type designation 

Code 

(ARION WL1--A, ARION WL1--A) 

24 ÷ 30 V d.c. M41 

48 ÷ 60 V d.c. M43 

110 V a.c./d.c. M45 

230 V a.c./220 V d.c. M46 

 

30



Rated voltage 1000 V 


Rated voltage 1000 V for both AC and DC versions 

- If withdrawable circuit breaker and plug-in frame are ordered separately, the complement code „A05” must be stated for both the withdrawable circuit breaker and plug-in frame 

- only for circuit breakers with I cu 

= 100 kA 

- possible also for DC switch-disconnector 

Code 

Only for circuit breakers and switch-disconnectors of size II and III with I cu 

= 100 kA A05 

Rated current modules 



- It is possible to order only one module per circuit breaker (not possible for overcurrent release ETU15B) 

- standardly delivered rated current module corresponds to the max. rated current of the circuit breaker 


Size I Size II Size III Code 

250 A + + – B02 

315 A + + – B03 

400 A + + – B04 

500 A + + – B05 

630 A + + – B06 

800 A + + – B08 

1000 A + + – B10 

1250 A + + + B12 

1600 A + + + B16 

2000 A – + + B20 

2500 A – + + B25 

3200 A – + + B32 

4000 A – – + B40 

5000 A – – + B50 

6300 A – – + B63 

+ can be used, – cannot be used 

 

Signal switches 



Code 

Signal switch of energy-storing mechanism state – cannot be combined with codes „F01“, „F02“ and „F12“ (S21 - 1 make contact) C20 

Signal switch “ready to closing” – cannot be combined with codes „F01“, „F02“ and „F12“ (S20 - 1 make contact) C22 

Signal switch for the 1st auxiliary release – cannot be combined with codes „F01“, „02“ and „F12“ (S22 - 1 make-and-break contact) C26 

Signal switch for the 2nd auxiliary release – cannot be combined with codes „F01“, „F02“ and „F12“ (S23 - 1 make-and-break contact) C27 

Signal switch “switched off by overcurrent release – cannot be combined with codes „F01“, „F02“ and „F12“ (S24 - 1 make-and-break contact) K07 

Operating position Test position Disconnected position 

Signal switch of position in the plug-in frame 1p 1p 1p R15 

Signal switch of position in the plug-in frame 3p 2p 1p R16 

 

31



Control presentation 


Control presentation 

Code 

Operating cycle counter - mechanical, 5-place - possible only in combination with motor drive C01 

Emergency OFF push-button – mushroom push-button in the place of mechanical button OFF S24 

Switch of the drive of the energy-storing mechanism on the front control panel of the circuit breaker (S12) 

- only for circuit breaker with motor drive, cannot be combined with codes „C11“, „C12“, „C14“ and „C15“ S25 

S25 

 

Electrically ON push-button on the front control panel of the circuit breaker – possible only for circuit breakers with closing release – cannot be combined with codes „F01“, „F02“, „F12“ and „S25“ 

Push-button with sealable cap 

Push-button with safety lock CES 

Push-button with safety lock IKON 

Push-button with cover for a padlock of diameter 6.3 mm – the lock is not included in the scope of delivery 

Automatic reset 

- automatic reset of the circuit breaker reclosing blocking after its switching off by overcurrent release 

C11 

C12 

C14 

C15 

K01 

 

 

Remote reset 

- remote reset of the indicating push-button „switched off by overcurrent release“ and remote reset of circuit breaker 

reclosing blocking after its switching off by overcurrent release 

24 d.c. K10 

48 d.c. K11 

110 V a.c./d.c. K12 

230 V a.c./220 V d.c. K13 

 

Data communication and measurement 


Data communication – circuit breaker must be equipped at least with ETU45B 

BSS (Breaker State Sensor) module 

Data communication PROFIBUS 

- contains COM15 and BSS modules 

- If withdrawable circuit breaker and plug-in frame are ordered separately, the complement code „F02” must be stated for both the withdrawable circuit breaker and plug-in frame 

- The overcurrent release ETU45B must be set via BDA adapter or via PC equipped with profi bus card and SW ES Switch Power 

Data communication MODBUS 

- contains COM16 and BSS modules 

- If withdrawable circuit breaker and plug-in frame are ordered separately, the complement code „F12” must be stated for both the withdrawable circuit breaker and plug-in frame 

- The overcurrent release ETU45B must be set via BDA adapter 

Code 

F01 

F02 

F12 

 


Code 

Measuring function Plus (without connection of communication) – for the measuring function, voltage transformers are necessary, see page 40 F05 

Internal current transformer for N conductor 

Size I, II, III 

- It is only possible for 4-pole circuit breakers with releases ETU27B, ETU55B or ETU76B 

Code 

F23 

 

Electronic protection of N conductor 

To ensure protection of N conductor at loading of only 1 pole 

- It is only possible for 4-pole circuit breakers with releases ETU27B, ETU45B, ETU55B or ETU76B with internal current transformer for N conductor 

Code 

F30 

 

32



Blocking and locking 


Mechanical interlocking - blocking module with Bowden cable 2 m 

- It is possible to block two or three circuit breakers - each must contain mechanical interlocking 

- For blocking of three circuit breakers it is necessary to buy one additional Bowden cable to each circuit breaker – see page 41 Code 

For fixed design 

S55 

For withdrawable circuit breaker with withdrawable device 

R55 

For withdrawable device 

For withdrawable circuit breaker 

R56 

R57 

 

Locking device against unauthorized closing – for both fixed and withdrawable circuit breaker 

- After locking, it is not possible to switch on the circuit breaker mechanically or electrically 

- The locking acts only on the given circuit breaker 

- Meets the requirements of EN 60 204 for the main switch and EN 60 947-2 for safe disconnection Code 

Safety lock CES 

S01 

Safety lock IKON 

S03 

Set for locks FORTRESS or CASTELL – preparation for locks; the locks are not included in the delivery; they are ordered directly at the manufacturer 

S05 

Set for padlocks – the padlock is not included in the delivery 

S07 

Safety lock RONIS 

Safety lock PROFALUX 

S08 

S09 

 

Locking device against unauthorized closing for withdrawable circuit breaker 

- After locking, it is not possible to switch on the circuit breaker mechanically or electrically 

- The locking acts on each circuit breaker inserted into the withdrawable device 

- Meets the requirements of EN 60 204 for the main switch and EN 60 947-2 for safe disconnection Code 




R60 

R61 

R68 

 

Locking device of the hand drive energy-storing mechanism lever 

- It is not possible to wind up the circuit breaker manually Code 

Set for padlocks – the padlock is not included in the delivery S33 

Locking device against movement of the withdrawable circuit breaker 

- prevents from crank withdrawal for shifting Code 


S75 


S71 


S76 

 

Locking device against shifting of the withdrawable circuit breaker in disconnected position 

- Consists of the Bowden cable and the lock in the cubicle door Code 


R85 


R81 


R86 

 

Blocking device 

Code 

Blocking device against cubicle door opening: for fixed circuit breaker in ON state S30 

for withdrawable circuit breaker in operating position 

R30 

Blocking device against shifting of the circuit breaker at opened cubicle door 

R50 

 

33



Covers, door sealing frame 


Arc chute cover 

Arc chute cover - for withdrawable design; it is installed on the withdrawable device 

- not possible for 1000 V design 

- not possible for DC design 

Code 

R10 

 

Insulation cover 

Insulation cover - for withdrawable design; it is installed on the withdrawable device (covers power contacts in the withdrawable device) 

- lockable by a padlock (the padlock is not included in the delivery) 

Code 

R21 

 

Door sealing frame 

Code 

Door sealing frame - it is installed on the cubicle door, protection IP41 T40 

34


SEPARATELY DELIVERED ACCESSORIES 3P 4P 

Connecting sets – fixed design 

- The set contains one terminal with connecting material for terminal mounting on the circuit breaker 

- The data are valid for one terminal, if not stated otherwise 

- For 3-pole design, 3 terminals are necessary on both upper and lower side; for 4-pole design, 4 terminals on both 

upper and lower side 


NSE-01010 

Size Rated current Type Product code Description Weight [kg] Packing [pc] 

I Up to 1000 A 3WL9111-0AL01-0AA0 Upper terminal 1.000 1 

I Up to 1600 A 3WL9111-0AL02-0AA0 Upper terminal 2.000 1 

II Up to 2000 A 3WL9111-0AL03-0AA0 20371 Upper terminal 2.300 1 

II Up to 2500 A 3WL9111-0AL04-0AA0 Upper terminal 4.500 1 

II Up to 3200 A 3WL9111-0AL05-0AA0 Upper terminal 4.400 1 

III Up to 4000 A 3WL9111-0AL06-0AA0 Upper terminal 6.000 1 

NSE-01010 

I Up to 1000 A 3WL9111-0AL51-0AA0 Lower terminal 1.200 1 

I Up to 1600 A 3WL9111-0AL52-0AA0 Lower terminal 1.700 1 

II Up to 2000 A 3WL9111-0AL53-0AA0 Lower terminal 2.000 1 



III Up to 4000 A 3WL9111-0AL56-0AA0 Lower terminal 6.400 1 


NSE-01011 


I Up to 1000 A 3WL9111-0AL07-0AA0 19341 Upper terminal 1.000 1 

I Up to 1600 A 3WL9111-0AL08-0AA0 19342 Upper terminal 2.000 1 


II Up to 2500 A 3WL9111-0AL12-0AA0 19344 Upper terminal 4.500 1 


III Up to 4000 A 3WL9111-0AL14-0AA0 19532 Upper terminal 6.000 1 

NSE-01011 

I Up to 1000 A 3WL9111-0AL57-0AA0 19346 Lower terminal 1.200 1 

I Up to 1600 A 3WL9111-0AL58-0AA0 19347 Lower terminal 1.700 1 

II Up to 2000 A 3WL9111-0AL61-0AA0 19348 Lower terminal 2.000 1 



III Up to 4000 A 3WL9111-0AL64-0AA0 19354 Lower terminal 6.400 1 



I Up to 1600 A 3WL9111-0AM01-0AA0 1) 19351 Upper terminal or lower terminal 0.500 1 

II Up to 3200 A 3WL9111-0AM02-0AA0 2) 19352 Upper terminal or lower terminal 1.600 1 

III Up to 6300 A 3WL9111-0AM03-0AA0 19355 Upper terminal or lower terminal 5.000 1 

1) 

– up to (inclusive) 1000 A one terminal is needed per pole, up to (inclusive) 1600 A two terminals are needed per pole 

2) 

– up to (inclusive) 2500 A one terminal is needed per pole, up to (inclusive) 3200 A two terminals are needed per pole 

NSE-01012 

state both type designation and product code, if any 

35



Connecting sets – withdrawable design 

- The set contains one terminal with connecting material for terminal mounting on the circuit breaker 

- The data are valid for one terminal, if not stated otherwise 

- For 3-pole design, 3 terminals are necessary on both upper and lower side; for 4-pole design, 4 terminals on both 

upper and lower side 


NSE-01013 


NSE-01014 

Supports for front connection with one or two rows of holes 


I Up to 1000 A 3WL9111-0AN01-0AA0 Upper terminal or lower terminal 1.100 1 

I Up to 1600 A 3WL9111-0AN02-0AA0 14462 Upper terminal or lower terminal 1.00 1 

II Up to 2000 A 3WL9111-0AN03-0AA0 Upper terminal or lower terminal 1.900 1 



III Up to 4000 A 3WL9111-0AN06-0AA0 Upper terminal or lower terminal 6.400 1 

- On both upper and lower side it is necessary to use supports „Supports for front connection with one or two rows of holes“ 




II Up to 2000 A 3WL9111-0AN11-0AA0 19355 Upper terminal or lower terminal 1.900 1 

II Up to 2500 A 3WL9111-0AN12-0AA0 19356 Upper terminal or lower terminal 3.700 1 

II Up to 3200 A 3WL9111-0AN13-0AA0 19357 Upper terminal or lower terminal 3.600 1 

III Up to 4000 A 3WL9111-0AN14-0AA0 19358 Upper terminal or lower terminal 6.400 1 

- On both upper and lower side it is necessary to use supports see „Supports for front connection with one or two rows of holes“ 

Size Number of poles Type Product code Weight [kg] Packing [pc] 

I 3-pole design 3WL9111-0AN41-0AA0 19368 0.800 1 

II 3-pole design 3WL9111-0AN42-0AA0 19369 1.200 1 

III 3-pole design 3WL9111-0AN43-0AA0 19370 1.200 1 

I 4-pole design 3WL9111-0AN44-0AA0 19371 1.200 1 

II 4-pole design 3WL9111-0AN45-0AA0 19372 1.200 1 

III 4-pole design 3WL9111-0AN46-0AA0 19373 1.200 1 

NSE-01017 


36



Withdrawable device, 3-pole, 4-pole, AC 

Size Max. rated current 3-pole 3-pole 


I 1000 3WL9211-1AA-A1 3WL9211-1BA-A1 

I 1600 3WL9211-2AA-A1 3WL9211-2BA-A1 

II 2000 3WL9212-3AA-A1 3WL9212-3BA-A1 



III 4000 3WL9213-6AA-A1 3WL9213-6BA-A1 


I 1000 3WL9211-1AB-A1 3WL9211-1BB-A1 

I 1600 3WL9211-2AB-A1 3WL9211-2BB-A1 

II 2000 3WL9212-3AB-A1 3WL9212-3BB-A1 



III 4000 3WL9213-6AB-A1 3WL9213-6BB-A1 

 

 




 

 

 

I 1000 3WL9211-1AC-A1 3WL9211-1BC-A1 

I 1600 3WL9211-2AC-A1 3WL9211-2BC-A1 

II 2000 3WL9212-3AC-A1 3WL9212-3BC-A1 



III 4000 3WL9213-6AC-A1 3WL9213-6BC-A1 

III 5000 3WL9213-7AC-A1 3WL9213-7BC-A1 

I 1000 3WL9211-1AD-A1 3WL9211-1BD-A1 

I 1600 3WL9211-2AD-A1 3WL9211-2BD-A1 

II 2000 3WL9212-3AD-A1 3WL9212-3BD-A1 



III 4000 3WL9213-6AD-A1 3WL9213-6BD-A1 



I 1000 3WL9211-1AE-A1 3WL9211-1BE-A1 

I 1600 3WL9211-2AE-A1 3WL9211-2BE-A1 

II 2000 3WL9212-3AE-A1 3WL9212-3BE-A1 



III 4000 3WL9213-6AE-A1 3WL9213-6BE-A1 

- 

Number of connectors of auxiliary circuits 

Without connector 0 

1 connector 1 

2 connector 2 

3 connector 3 

4 connector 4 

Method of connection of conductors of auxiliary circuits 


Screw terminals – standard 1 

Spring terminals 2 

Position signal switches 

Without switches 0 

Variant 1 – 3 microswitches 1 



No 

A 

Yes 

B 

Other accessories of withdrawable device must be ordered by means of complement codes 


37



Withdrawable device, 3-pole, 4-pole, DC 

Size Max. rated current 3-pole 4-pole 


II 2000 3WL9212-3DA-A1 3WL9212-3EA-A1 

 


II 2000 3WL9212-3DB-A1 3WL9212-3EB-A1 

 


II 2000 3WL9212-3DC-A1 3WL9212-3EC-A1 

II 4000 3WL9212-6DC-A1 3WL9212-6EC-A1 

 


II 2000 3WL9212-3DD-A1 3WL9212-3ED-A1 

II 4000 3WL9212-6DD-A1 3WL9212-6ED-A1 

 


II 2000 3WL9212-3DE-A1 3WL9212-3ED-A1 

II 4000 3WL9212-6DE-A1 3WL9212-6EE-A1 

 

38 

- 

Number of connectors of auxiliary circuits 


1 connector 1 

2 connector 2 

3 connector 3 

4 connector 4 

Method of connection of conductors of auxiliary circuits 


Screw terminals – standard 1 

Spring terminals 2 


Without switches 0 




No 

A 

Yes 

B 

Other accessories of withdrawable device must be ordered by means of complement codes 

For weight see page 53




I n 

= 3200 A 

 

Rated current Type Product code Description Weight [kg] Packing [pc] 

250 3WL9111-0AA51-0AA0 for size I, II 1 







1250 3WL9111-0AA58-0AA0 for size I, II, III 1 

1600 3WL9111-0AA61-0AA0 for size I, II, III 1 

2000 3WL9111-0AA62-0AA0 for size II, III 1 



4000 3WL9111-0AA65-0AA0 for size III 1 



- At insertion of the rated current module (rating plug) into the overcurrent release UTU25B, ETU45B, ETU55B or ETU76B, the rated current of the circuit 

breaker is changed to the value of the rated current module - rated current can only be decreased 

- The rated current module with the rated current of the selected circuit breaker is part of every circuit breaker or overcurrent release 

- Not possible for overcurrent release ETU15B 

Test device 

Type Product code Description Weight [kg] Packing [pc] 

3WL9111-0AT31-0AA0 19423 Hand test device for function tests of overcurrent releases 

1.000 

- for overcurrent releases ETU15B to ETU76B 

1 

3WL9111-0AT44-0AA0 

Test device for testing of tripping characteristics 

- for overcurrent releases ETU15B to ETU76B 

1 

CubicleBUS modules and cables 

 


3WL9111-0AT26-0AA0 17878 Digital output module with rotary switch - relay outputs 0.400 1 

3WL9111-0AT25-0AA0 Digital output module with rotary switch - output with optocouplers 0.400 1 

3WL9111-0AT20-0AA0 

Digital output module, programmable - relay outputs 

0.400 1 

- it must be programmed 

3WL9111-0AT30-0AA0 

Digital output module, programmable - output with optocouplers 

0.400 1 

- it must be programmed 

3WL9111-0AT27-0AA0 Digital input module 0.400 1 

3WL9111-0AT23-0AA0 Analog output module 0.400 1 

3WL9111-0AT21-0AA0 ZSS module - short selectivity control 0.400 1 

3WL9111-0BC04-0AA0 

Connecting cable for CubicleBUS modules and circuit breakers 

1 

- for circuit breakers with data communication PROFIBUS - length 20 cm 

3WL9111-0BC02-0AA0 


1 

- for circuit breakers with data communication PROFIBUS - length 1 m 

3WL9111-0BC03-0AA0 


1 

- for circuit breakers with data communication PROFIBUS - length 2 m 

3WL9111-0BC05-0AA0 


1 

- for circuit breakers without data communication PROFIBUS - length 2 m 

- Each module is delivered with a 20 cm cable for interconnection of individual modules 

- For connection of CubicleBUS modules to the circuit breaker, one connecting cable is necessary (it is not delivered with the modules) 

- The circuit breaker must be equipped with at least ETU45B 

Voltage sources 

Type Product code Voltage Current Weight [kg] Packing [pc] 

6EP1332-2BA10 33325 24 V d.c. 2.5 A 0.400 1 

6EP1333-2AA01 33505 24 V d.c. 5 A 0.500 1 

- The source is necessary for the circuit breakers equipped with data communication or Plus measuring function 


39



Data communication - BDA adapters 

Type Product code Name Description Weight [kg] Packing [pc] 

3WL9111-0AT28-0AA0 BDA adapter Parameterization, control, diagnostics and testing 

of circuit breakers ARION WL by means of PC 

- interface RS232 

- programmed by means of PC 

Internet Explorer + JAVA2 VM 1.4.0-01 

- includes cable for interconnection of BDA adapter and 

overcurrent release of the circuit breaker (the cable is not 

suitable for long-time connection of BDA adapter) 

- no other software is needed 

- the circuit breaker must be equipped with at least ETU45B 

1 

 

3WL9111-0AT33-0AA0 15968 BDA plus 

adapter 

Parameterization, control, diagnostics and testing 

of circuit breakers ARION WL by means of PC 

- interface ETHERNET and RS232 

- programmed by means of PC 

Internet Explorer + JAVA2 VM 1.4.0-01 

- includes cable for interconnection of BDA adapter and 

overcurrent release of the circuit breaker (the cable is not 

suitable for long-time connection of BDA adapter) 

- no other software is needed 

- the circuit breaker must be equipped with at least ETU45B 

1 

3WL9111-0BC20-0AA0 

Connecting 

cable 

Connecting 

cable 

Connecting cable for BDA adapter and overcurrent release 

- length 1 m 

1 

3WL9111-0BC21-0AA0 

For connection of BDA adapter to the circuit breaker 

- suitable for long-time connection 

- the cable is not necessary, if the circuit breaker is equipped 

with data communication PROFIBUS or CubicleBUS modules 

1 

3ZS2311-0CC10-0YA0 

Switch ES 

Power 

Parameterization software 

- parameterization, control, diagnostics and testing of circuit 

breakers ARION WL via PROFIBUS 

- compatible with WIN 95, WIN 98, WIN NT, WIN 2000, WIN XP 

- the circuit breaker must be equipped with data communication 

PROFIBUS 

- in addition, for PC there must be a PROFIBUS card 

1 

Voltage transformers 

Operating voltage Type Product code Description Weight [kg] Packing [pc] 

230 V a.c. 3WL9111-0BB70-0AA0 Accuracy class 0.5 1 

380 ÷ 440 V a.c. 3WL9111-0BB68-0AA0 34154 Accuracy class 0.5 1 

500 ÷ 690 V a.c. 3WL9111-0BB64-0AA0 Accuracy class 0.5 1 

External current transformers for N conductor 

 

 

Circuit breaker size Type Product code Description Weight [kg] Packing [pc] 

I 3WL9111-0AA21-0AA0 Without copper clamps 1 

II 3WL9111-0AA22-0AA0 20513 Without copper clamps 1 

III 3WL9111-0AA23-0AA0 Without copper clamps 1 

I 3WL9111-0AA31-0AA0 20112 Without copper clamps 1 

II 3WL9111-0AA32-0AA0 20111 Without copper clamps 1 

III 3WL9111-0AA33-0AA0 Without copper clamps 1 


40



Auxiliary power sources for shunt releases 

Bowden cables for mechanical interlocking 


110 V a.c./d.c. 3WL9111-0BA13-0AA0 Enables circuit breaker switching off by shunt 0.500 1 

release also at interruption of power supply of 

control circuits (max. 5 min) 

230 V a.c./220 d.c. 3WL9111-0BA14-0AA0 Enables circuit breaker switching off by shunt 0.500 1 

release also at interruption of power supply of 

control circuits (max. 5 min) 

- operating voltage of the source must be identical to the operating voltage of the shunt release 

Length Type Product code Weight [kg] Packing [pc] 

2 m 3WL9111-0BB25-0AA0 14620 0.160 1 

3 m 3WL9111-0BB26-0AA0 17366 0.250 1 

4.5 m 3WL9111-0BB27-0AA0 14733 0.350 1 

Sealable covers of overcurrent release 

 

 

Overcurrent release Type Product code Weight [kg] Packing [pc] 

ETU15B, ETU25B, ETU27B, 

3WL9111-0AT45-0AA0 19421 0.050 1 

ETU45B, ETU55B 

ETU76B 3WL9111-0AT46-0AA0 19422 0.050 1 

 

 

Door sealing frame 


3WL9111-0AP01-0AA0 13459 Protection IP41 0.630 1 

 

Transparent cover 


3WL9111-0AP02-0AA0 20516 Protection IP55 

- the cover cannot be used simultaneously with the sealing frame 

- the cover can be removed 

- the cover can be opened to both sides 

1 

Arch chute covers for withdrawable device 

 

Bearing angle 

Design, size Type Product code Weight [kg] Packing [pc] 

3-pole, size I 3WL9111-0AS32-0AA0 19335 1.830 1 

3-pole, size II 3WL9111-0AS36-0AA0 19336 2.600 1 

3-pole, size III 3WL9111-0AS38-0AA0 19337 4.050 1 

4-pole, size I 3WL9111-0AS42-0AA0 19338 2.340 1 

4-pole, size II 3WL9111-0AS44-0AA0 19339 3.300 1 

4-pole, size III 3WL9111-0AS46-0AA0 19340 5.210 1 

- installation is not possible for 1000 V (code„A05“) and DC switch-disconnectors 


3WL9111-0BB50-0AA0 

For installation of fixed circuit breaker on vertical plane, 

4.800 1 

only for size I and II - contains 2 pieces 

 

 

NSE01028 


41


ACCESSORIES FOR ADDITIONAL INSTALLATION BY OEZ SERVICE 3P 4P 

Connections for withdrawable device - rear vertical connection 

 







III Up to 5000 A 3WL9111-0AN22-0AA0 Upper terminal or lower terminal 6.000 1 

III Up to 6300 A 3WL9111-0AN23-0AA0 3 upper terminal or lower terminal 20.000 1 

(for 3-pole design) 

3WL9111-0AN20-0AA0 

4 upper terminals 

20.000 1 

(for 4-pole design) 

3WL9111-0AN10-0AA0 

4 lower terminals 

(pro 4-pole design) 

20.000 1 

Connections for withdrawable device - rear horizontal connection 

 


I Up to 1000 A 3WL9111-0AN32-0AA0 Upper terminal or lower terminal 1 


II Up to 2000 A 3WL9111-0AN34-0AA0 Upper terminal or lower terminal 1 



III Up to 5000 A 3WL9111-0AN37-0AA0 Upper terminal or lower terminal 1 

Connections for withdrawable device - flanged connection 

 







III Up to 4000 A 3WL9111-0AN31-0AA0 Upper terminal or lower terminal 1 

42




Display 

Earth-fault modules 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name Protective function Type Product code Description Weight [kg] Packing [pc] 

ETU15B LI 3WL9311-5AA00-0AA1 1 

ETU25B LSI 3WL9312-5AA00-0AA1 1 

ETU27B LSING 3WL9312-7AA00-0AA1 1 

ETU45B LSIN(G) 3WL9314-5AA00-0AA1 1 

3WL9314-5AA20-0AA1 

ETU55B LSIN(G) 3WL9315-5AA00-0AA1 - without measuring function Plus 1 

3WL9315-5AA20-0AA1 

- with measuring function Plus 

ETU76B LSIN(G) 3WL9317-6AA00-0AA1 - without measuring function Plus 1 

3WL9317-6AA20-0AA1 

- with measuring function Plus 


3WL9111-0AT81-0AA0 Display for ETU45B, 4-line LCD 1 

Name Type Product code Description Weight [kg] Packing [pc] 

GFM AT 45B 3WL9111-0AT53-0AA0 Only for ETU45B, signalling and breaking function 1 

GFM AT 55B-76B 3WL9111-0AT56-0AA0 Only pro ETU55B and ETU76B, signalling and 

breaking function 

1 

Terminal boards and connectors for connection of auxiliary circuits 

3WL9111-0BA01-0AA0 

3WL9111-0BA04 

 

 

3WL9111-0BA03-0AA0 

 

3WL9111-0BA08 

 


Blade contact block 3WL9111-0AB01-0AA0 For circuit breaker with U e 

= 690 V 0.100 1 

Blade contact block 3WL9111-0AB10-0AA0 For circuit breaker with U e 

= 1000 V – including 

blade contact block for the circuit breaker 

(need not be ordered separately) 

– use at configuring of a new circuit breaker 

1 

Additional (extension) 

blade contact block 

Terminal boards pro connection 

of conductors of aux. circuits 

3WL9111-0BA02-0AA0 

3WL9111-0AB03-0AA0 

3WL9111-0AB04-0AA0 

For circuit breaker with U e 

= 1000 V (blade 

contact block for the circuit breaker must be 

ordered separately, unless it is not on the circuit 

breaker) – use at circuit breaker reconstruction 

from U e 

= 690 V to 1000 V 

For circuit b. or withdrawable device – screw term. 

For circuit b. or withdrawable device – spring term. 

1 

0.070 1 

Sliding contact module 3WL9111-0AB08-0AA0 Only for withdrawable device 0.100 1 

Sliding contact module 3WL9111-0AB18-0AA0 Including terminal boards - screw terminals 1 

Blanking block 3WL9111-0AB12-0AA0 Only for circuit breaker 1 

Coding set 3WL9111-0AB07-0AA0 Only for fixed circuit breaker 1 

Motor drives 

Description Type Product code Weight [kg] Packing [pc] 

24 ÷ 30 V d.c. 3WL9111-0AF01-0AA0 1.510 1 

48 ÷ 60 V d.c. 3WL9111-0AF02-0AA0 1.510 1 

110 V a.c./d.c. 3WL9111-0AF03-0AA0 1.510 1 

230 V a.c./220 V d.c. 3WL9111-0AF04-0AA0 1.510 1 

 

Closing releases/shunt releases 


24 V d.c. 3WL9111-0AD01-0AA0 Load factor 100 % 0.700 1 




110 V a.c./d.c. 3WL9111-0AD05-0AA0 Load factor 100 % 0.700 1 

230 V a.c./220 V d.c. 3WL9111-0AD06-0AA0 Load factor 100 % 0.700 1 


48 V d.c. 3WL9111-0AD12-0AA0 Load factor 5 % 0.700 1 

110 V a.c./d.c. 3WL9111-0AD13-0AA0 Load factor 5 % 0.700 1 

230 V a.c./220 V d.c. 3WL9111-0AD14-0AA0 Load factor 5 % 0.700 1 

43



Undervoltage releases 



24 V d.c. 3WL9111-0AE01-0AA0 Short-time delayed 80 or 200 ms 0.730 1 




110 V a.c./d.c. 3WL9111-0AE04-0AA0 Short-time delayed 80 or 200 ms 0.730 1 

230 V a.c./220 V d.c. 3WL9111-0AE05-0AA0 Short-time delayed 80 or 200 ms 0.730 1 


48 V d.c. 3WL9111-0AE11-0AA0 Delay 0.2 ÷ 3.2 s 0.740 1 

110 V a.c./d.c. 3WL9111-0AE12-0AA0 Delay 0.2 ÷ 3.2 s 0.730 1 

230 V a.c./220 V d.c. 3WL9111-0AE13-0AA0 Delay 0.2 ÷ 3.2 s 0.730 1 

400 V a.c. 3WL9111-0AE14-0AA0 Delay 0.2 ÷ 3.2 s 0.730 1 


3WL9111-0AG01-0AA0 2 make + 2 break 0.180 1 

3WL9111-0AG02-0AA0 2 make 0.050 1 

3WL9111-0AG03-0AA0 1 make + 1 break 0.050 1 

Signal switches, display and control 

3WL9111-0AH11-0AA0 

 

3WL9111-0AH07-0AA0 


Signal switch 

3WL9111-0AH01-0AA0 0.025 1 

“ready-to-close” 

Signal switch for 

1st or 2nd auxiliary release 

Signal switch disconnected 

by overcurrent release 

Signal switch of the state of 

energy-storing mechanism 


in withdrawable device 

3WL9111-0AH02-0AA0 

3WL9111-0AH14-0AA0 

3WL9111-0AH08-0AA0 

3WL9111-0AH11-0AA0 

3WL9111-0AH12-0AA0 

- cannot be combined with codes „F01“, „F02“ 

and „F12“ - the circuit breaker must be equipped 

with connector X7 







Variant 1 - 3 microswitches 

Variant 2 - 6 microswitches 

1 

1 

0.030 1 

0.200 1 

Cycle counter 3WL9111-0AH07-0AA0 Possible only in combination with motor drive 0.100 1 

3WL9111-0BA72-0AA0 

 

Electrical ON push-button 

- cannot be combined with 

codes „F01“, „F02“, „F12“ and 

„S25“ 

3WL9111-0AJ02-0AA0 

3WL9111-0AJ03-0AA0 

3WL9111-0AJ04-0AA0 

3WL9111-0AJ05-0AA0 

With sealable cap 

With safety lock CES 

With safety lock BKS 

With safety lock IKON 

Motor drive switch 3WL9111-0AJ06-0AA0 - cannot be combined with electrical ON 

push-button, possible only in combination 

with motor drive 

Emergency OFF push-button 3WL9111-0BA72-0AA0 Mushroom push-button instead of 

mechanical OFF push-button 

0.150 1 

1 

44



Data communication, measurement 

 

 

 

 

 


Data communication 

PROFIBUS 

3WL9111-0AT12-0AA0 

Circuit breaker completion with data communication 

PROFIBUS, contains COM15 module, BSS module 

(Breaker State Sensor), complete set of internal 

cables and CubicleBUS cable long 2 m 

1 

COM15 module 3WL9111-0AT15-0AA0 Data communication module PROFIBUS 

1 

including CubicleBUS cable long 2 m 

BSS module 3WL9111-0AT16-0AA0 BSS module - Breaker State Sensor 1 


PLUS 

3WL9111-0AT03-0AA0 

- the circuit breaker must be equipped at least with ETU45B 

Measuring function PLUS module, 

without voltage transformers 

- the transformers shall be ordered see page 40 

1 

Internal current transformers for N conductor 

 

Size Type Product code Description Weight [kg] Packing [pc] 

I 3WL9111-0AA11-0AA0 Including set of connecting conductors 1 

I 3WL9111-0AA12-0AA0 Including set of connecting conductors 1 

II 3WL9111-0AA13-0AA0 Including set of connecting conductors 1 

EMC filter 


3WL9111-0AK32-0AA0 

Filter for suppression of interference, contains attenuation (asymmetric) filter 

- attenuation in the range 40 kHz ÷ 10 MHz > 40 dB 

- application e.g. in IT networks or for frequency converters 

0.300 1 

Remote reset electromagnet of mechanical indicator of switching off by overcurrent release 


24 V d.c. 3WL9111-0AK03-0AA0 

1 

48 V d.c. 3WL9111-0AK04-0AA0 Remote reset of the indication push-button 

1 

„switched off by overcurrent release“ 

110 V a.c./d.c. 3WL9111-0AK05-0AA0 1 

230 V a.c./220 V d.c. 3WL9111-0AK06-0AA0 1 

- can be used only in combination with automatic reset 



3WL9111-0AK01-0AA0 

Automatic reset of circuit breaker reclosing blocking 

1 

after its switching off by overcurrent release 

45



Mechanical interlocking 

NSE00989 

Locking device 

3WL9111-0BA2-0AA0 


3WL9111-0BB21-0AA0 Complete module for fixed circuit breaker (Bowden cable 2 m) 2.320 1 

3WL9111-0BB22-0AA0 Module only for the withdrawable device 1 

3WL9111-0BB23-0AA0 Module only for the withdrawable circuit breaker 1 

3WL9111-0BB24-0AA0 

Complete module for withdrawable circuit breaker 

2.420 1 

and withdrawable device 

3WL9111-0BB30-0AA0 Adapter for withdrawable circuit breaker size III 1 

3WL9111-0BB25-0AA0 Bowden cable 2 m 0.160 1 

3WL9111-0BB26-0AA0 Bowden cable 3 m 0.250 1 

3WL9111-0BB27-0AA0 Bowden cable 4.5 m 0.350 1 


Protective caps against 3WL9111-0BA21-0AA0 

Set for padlocks 

0.300 1 

mechanical On/Off 

- the padlock is not included in the delivery 

3WL9111-0BA22-0AA0 With safety lock CES 1 

3WL9111-0BA24-0AA0 With safety lock IKON 1 

 

3WL9111-0BA3-0AA0 

 

3WL9111-0BA5-0AA0 

Locking device against 

unauthorized closing 

3WL9111-0BA31-0AA0 

Set for locks FORTREES or CASTELL 

0.200 1 

- preparation for locks, the locks are not 

included in the delivery, they shall be 

ordered directly at the manufacturer 

3WL9111-0BA33-0AA0 With safety lock RONIS 1 

3WL9111-0BA34-0AA0 With safety lock KIRK-Key 1 

3WL9111-0BA35-0AA0 With safety lock PROFALUX 1 



3WL9111-0BA41-0AA0 



1 

 

3WL9111-0BA71-0AA0 


unauthorized closing for 

withdrawable circuit breaker 






Locking device of the lever of 

energy-storing mechanism 

of the hand drive 

3WL9111-0BA71-0AA0 



0.080 1 

 

3WL9111-0BA7-0AA0 

 

3WL9111-0BA8-0AA0 

 


shifting of withdrawable 

circuit breaker 


shifting of circuit breaker 

in disconnected position 


3WL9111-0BA75-0AA0 

With safety lock IKON 

1 








3WL9111-0BA87-0AA0 



1 

46



Blocking device 


Blocking device against 3WL9111-0BB12-0AA0 

For fixed circuit breaker, blocking in the ON 

1 

opening of cubicle door (it can 

be bypassed using a tool) 

3WL9111-0BB13-0AA0 

state of the circuit breaker 

For withdrawable circuit breaker, blocking in 

operating position of the circuit breaker 

1 

Blocking device against 

circuit breaker shifting at 

open cubicle door 

3WL9111-0BB15-0AA0 For withdrawable circuit breaker 1 

47




Arc chutes 

 

Number of poles Size Type Product code Weight [kg] Packing [pc] 

3 - pole I 3WL9 111-0AP04-0AA0 0.500 1 

3 - pole II 3WL9 111-0AP06-0AA0 0.630 1 

3 - pole III 3WL9 111-0AP07-0AA0 0.860 1 

4 - pole I 3WL9 111-0AP08-0AA0 0.600 1 

4 - pole II 3WL9 111-0AP11-0AA0 0.770 1 

4 - pole III 3WL9 111-0AP12-0AA0 1.070 1 

Operating voltage Size Type Product code Weight [kg] Packing [pc] 

690 V I 3WL9 111-0AS01-0AA0 1 

690 V II 3WL9 111-0AS02-0AA0 1 

690 V III 3WL9 111-0AS03-0AA0 1 

1000 V II 3WL9 111-0AS05-0AA0 1 

1000 V III 3WL9 111-0AS06-0AA0 1 

Protection by earthing - contact module for withdrawable circuit breaker 


3 - pole I 3WL9 111-0BA05-0AA0 1 

3 - pole II 3WL9 111-0BA06-0AA0 1 

 

3 - pole III 3WL9 111-0BA07-0AA0 1 

4 - pole I 3WL9 111-0BA08-0AA0 1 

4 - pole II 3WL9 111-0BA04-0AA0 1 

4 - pole III 3WL9 111-0BA10-0AA0 1 

- contact module making capacity is 30 kA, at use of two modules 60 kA 

Protection by earthing - contact module for withdrawable device 

Size Type Product code Weight [kg] Packing [pc] 

I, II 3WL9 111-0BA01-0AA0 1 

III 3WL9 111-0BA02-0AA0 1 

 

- contact module making capacity is 30 kA, at use of two modules 60 kA 

Coding of withdrawable device 


3WL9 111-0AR12-0AA0 Code can be set by the customer - 36 coding variants 1 

 

Set for retrofit from fixed to withdrawable design 


3 - pole I 3WL9111-0BC11-0AA0 1 

3 - pole II 3WL9111-0BC12-0AA0 1 

3 - pole III 3WL9111-0BC13-0AA0 1 

4 - pole I 3WL9111-0BC14-0AA0 1 

4 - pole II 3WL9111-0BC15-0AA0 1 

4 - pole III 3WL9111-0BC16-0AA0 1 

- Withdrawable device and sliding contacts shall be ordered separately 

Main contacts 

 

Size Rated current Type Product code Weight [kg] Packing [pc] 

I Up to 1600 A 3WL9 111-0AM90-0AA0 Y1 1 

II Up to 2500 A 3WL9 111-0AM91-0AA0 Y1 1 

II Up to 3200 A 3WL9 111-0AM92-0AA0 Y1 1 

III Up to 6300 A 3WL9 111-0AM93-0AA0 Y1 1 

- In the order it is necessary to specify the serial number of the circuit breaker, the type is changed automatically in the order depending on the serial number 

- 3 or 4 pcs are ordered according to the number of poles 

48

Air circuit breakers 


CIRCUIT BREAKERS, SWITCH-DISCONNECTORS 

- parameters ...............................................................................................................................................................50 

- diagram ....................................................................................................................................................................54 

- connection ................................................................................................................................................................56 

- description ...............................................................................................................................................................58 

- dimensions ...............................................................................................................................................................59 

WITHDRAWABLE DEVICE 

- description ...............................................................................................................................................................71 

OVERCURRENT RELEASES 

- description ...............................................................................................................................................................73 

- overview of parameters ...........................................................................................................................................74 

- ETU15B - description, tripping characteristic ............................................................................................................76 

- ETU25B - description, tripping characteristic ...........................................................................................................77 




- ETU75B - description, tripping characteristic ...........................................................................................................81 

EARTH-FAULT PROTECTION MODULE 

- description ...............................................................................................................................................................84 

MEASUREMENT AND DATA COMMUNICATION 

- description ...............................................................................................................................................................85 

AUXILIARY SWITCHES, SIGNAL SWITCHES 

- description, parameters ...........................................................................................................................................88 

SHUNT RELEASES, AUXILIARY POWER SOURCE FOR SHUNT RELEASE 


UNDERVOLTAGE RELEASE 


LOCKING AND BLOCKING DEVICES 

- description ................................................................................................................................................................90 

DRIVES AND CLOSING RELEASES 


GLOSSARY ................................................................................................................................................................................92 


see page 1 

49

ARION WL - Technical information 

CIRCUIT BREAKERS, SWITCH-DISCONNECTORS - AC OPERATION 3P 4P 

Parameters 

Type ARION WL11... ARION WL12... ARION WL13... 

Size I II III 

Standards EN 60947-2 

IEC 60947-2 

DIN VDE 0660 Section 101 

Certification marks 

EN 60947-2 

IEC 60947-2 


EN 60947-2 

IEC 60947-2 


Size I 

Size II 

Size III 



630 A 

800 A 

1000 A 


1600 A 

800 A 

1000 A 


1600 A 

2000 A 

2500 A 

3200 A 

4000 A 

5000 A 

6300 A 

690 V a.c. 


690 V a.c. 690 V a.c. 

1000 V a.c. 3) 1000 V a.c. 3) 


50/60 Hz 50/60 Hz 50/60 Hz 

Rated pulse voltage - main current paths U imp 

12 kV 12 kV 12 kV 

- auxiliary circuits 4 kV 4 kV 4 kV 

- control circuits 2.5 kV 2.5 kV 2.5 kV 

Rated insulation voltage U i 

1000 V 1000 V 1000 V 

Utilization category (selectivity) B B B 


See the table on page 51 See the table on page 51 See the table on page 51 



Rated operating short-circuit breaking capacity I cs 

100% I cu 

100% I cu 

100% I cu 

Rated short-circuit making capacity I cm 


Time to switching off at I cu 

50 ms 1) 50 ms 1) 50 ms 1) 

Mechanical On time 35 ms 35 ms 35 ms 

Mechanical Off time 38 ms 34 ms 34 ms 

Power loss at I n 


Mechanical endurance - without maintenance 10 000 cycles 10 000 cycles 5 000 cycles 

- with maintenance 4) 20 000 cycles 15 000 cycles 10 000 cycles 

Electrical endurance - without maintenance (U e 

= 1000V) 10 000 cycles 7 500 cycles (1000) 2 000 cycles (1000) 


Switching frequency U e 

= 690 V a.c. (1000 V a.c.) 60 cycles/h 60 cycles/h (20) 60 cycles/h (20) 

Minimum dwell between circuit breaker switching off by 

overcurrent release and subsequent reclosing 

80 ms 2) 80 ms 2) 80 ms 2) 

Degree of protection 

IP20, IP41 with sealing frame, IP55 with transparent cover 

Reference ambient temperature 40 °C 40 °C 40 °C 

Ambient temperature range 

operation - 25 °C ÷ + 70 °C - 25 °C ÷ + 70 °C - 25 °C ÷ + 70 °C 

(it is necessary to observe special conditions for LCD) storage - 40 °C ÷ + 70 °C - 40 °C ÷ + 70 °C - 40 °C ÷ + 70 °C 

Height above sea level 2000 m 2000 m 2000 m 

Climatic resistance IEC 68 section 30-20 IEC 68 section 30-20 IEC 68 section 30-20 

Weight m See the table on page 51 See the table on page 51 See the table on page 51 

1) 

- with ETU15B time to switching off is 85 ms 

2) 

- only with automatic reset of reclosing blocking 

3) 

- special design see page 31 

4) 

- at replacement of main contacts and arc chutes 

50



Parameters 


2) 

Size - Type I – ARION WL11… II – ARION WL12… III – ARION WL13… 1) 

Designation of breaking capacity N S N S H - I n 


SWITCH-DISCONNECTORS - DC OPERATION 3P 4P 

Parameters 

Type ARION WL1210-8AA... ARION WL1220-8AA... ARION WL1240-8AA... 

Size II II II 


IEC 60947-3 


Certification marks 

EN 60947-3 

IEC 60947-3 


EN 60947-3 

IEC 60947-3 


Size II 



1000 A 2000 A 4000 A 


300 V d.c. 1) 

600 V d.c. 1) 

1000 V d.c. 1) 2) 300 V d.c. 1) 

600 V d.c. 1) 

1000 V d.c. 1) 2) 300 V d.c. 1) 

600 V d.c. 1) 

1) 2) 

1000 V d.c. 

Rated pulse voltage - main current paths 12 kV 12 kV 12 kV 

- auxiliary circuits 4 kV 4 kV 4 kV 

- control circuits 2.5 kV 2.5 kV 2.5 kV 


1000 V 1000 V 1000 V 





Mechanical on time 35 ms 35 ms 35 ms 

Mechanical off time 34 ms 34 ms 34 ms 


per 1 pole 280 W 770 W 1640 W 

Mechanical endurance - without maintenance 10 000 cycles 10 000 cycles 10 000 cycles 


Electrical endurance - without maintenance (U e 

= 1000V) 6000 cycles (1000) 6000 cycles (1000) 4000 cycles (1000) 



= 600 d.c. V (1000 V d.c) 60 cycles/h (20) 60 cycles/h (20) 60 cycles/h (20) 



Reference ambient temperature 40 °C 40 °C 40 °C 

Ambient temperature range operation - 25 °C ÷ + 70 °C - 25 °C ÷ + 70 °C - 25 °C ÷ + 70 °C 

storage - 40 °C ÷ + 70 °C - 40 °C ÷ + 70 °C - 40 °C ÷ + 70 °C 

Height above sea level 2000 m 2000 m 2000 m 

Climatic resistance IEC 68 Section 30-20 IEC 68 Section 30-20 IEC 68 Section 30-20 

Weight See the table on page 53 See the table on page 53 See the table on page 53 

1) 

- rated operating voltage according to the connection see page 53 

2) 

- special design see page 31 

3) 


For possible protection of DC circuits, please call technical assistance. See the cover sheet for contact. 

52


SWITCH-DISCONNECTORS - DC OPERATION 3P 4P 

Parameters 


1) 

Operating voltage U e 

Type ARION WL1210-8AA… ARION WL1220-8AA… ARION WL1240-8AA… 

300 V d.c. 30 kA/1 s 30 kA/1 s 30 kA/1 s 

600 V d.c. 25 kA/1 s 25 kA/1 s 25 kA/1 s 

1000 V d.c. 20 kA/1 s 20 kA/1 s 20 kA/1 s 

1) 

- at reverse connection of the switch-disconnector the values do not change (input terminals 2, 4, 6, output terminals 1, 3, 5) 


1) 

Operating voltage U e 

Type ARION WL1210-8AA… ARION WL1220-8AA… ARION WL1240-8AA… 

300 V d.c. 30 kA/1 s 30 kA/1 s 30 kA/1 s 

600 V d.c. 25 kA/1 s 25 kA/1 s 25 kA/1 s 

1000 V d.c. 20 kA/1 s 20 kA/1 s 20 kA/1 s 

1) 

- at reverse connection of the switch-disconnector the values do not change (input terminals 2, 4, 6, output terminals 1, 3, 5) 

Weight 

Type 3-pole 4-pole 

Fixed design 

Withdrawable circuit breaker 

+ withdrawable device 

Fixed design 



ARION WL1210-8AA... 56 kg 60 + 31 = 91 kg 67 kg 72 + 37 = 109 kg 



Rated current versus ambient temperature 

Type 55°C 60°C 70°C 

ARION WL1210-8AA... 1000 A 1000 A 1000 A 



Connection of switch-disconnectors for DC operation according to operating voltage 

Rated operating voltage 

Recommended number of contacts in series 

3-pole switch-disconnectors 

Operating current up to 4000 A per current path 

4-pole switch-disconnectors 

Operating current up to 4000 A per current path 

up to 300 V + 10% 

1-pole switching, 

3 current paths 

parallel only with 

earthed network 

2-pole switching 


4 current paths parallel only 

with earthed network 


2 current paths 

parallel 

over 300 V + 10% 

up to 600 V + 10% 


only with earthed network 


2 current paths parallel only 

with earthed network 


over 600 V + 10% 

up to1000 V + 10% 



Connection of the switch-disconnector does not depend on polarity. Connection diagrams can 

be changed logically. If parallel or serial connections are made directly on the main leads of the 

circuit breaker, the for thermal reasons the circuit breakers can by permanently loaded only by 

80% of permissible rated current. if these connections are made at 1 m or more from the main 

leads, the circuit breaker can be loaded by full rated current. 



Earthed network 

Load 

53


CIRCUIT BREAKERS, SWITCH-DISCONNECTOR 3P 4P 

Diagram 

Internal 

Terminals 

External 

Remote reset electromagnet F7 

Current transformer G, S2 

Current transformer G, S1 

Current transformer N, S2 

Current transformer N, S1 

External voltage transformer, node 

External voltage transformer, L3 



CubicleBUS + 

CubicleBUS – 

ETU 

X8 

14 

13 


11 

10 

9 

8 

7 

6 

5 

4 

3 

2 

1 

L / L+ 

N / L− 

Jumper, if current transformer N is not connected 

L1 

L2 

L3 

- 24 V DC input 

+ 

Terminating resistor, if no CubicleBUS module is connected 

(the resistor is included in the delivery) 

Signal switch „switched off by overcurrent release” S24 

Signalling of energy-storing mechanism state S21 

Electrical “ON” push-button on the circuit breaker S10 

Signal switch for the first auxiliary release, 

S22 

Signal switch for the second auxiliary release, 

S23 

X7 

14 

13 


11 

10 

9 

8 

7 

6 

5 

4 

3 

2 

1 

COM 15 

or 

COM 16 

COM 15 - PROFIBUS data communication module 

COM 16 - MODBUS data communication module 

L / L+ 

First auxiliary release F1 - voltage 

Auxiliary make contact S1 

Auxiliary break contact S1 

Closing release Y1 

Signal switch „ready-to-close” S20 

Auxiliary make contact S2 

Auxiliary break contact S2 

X6 

14 

13 


11 

10 

9 

8 

7 

6 

5 

4 

3 

2 

1 

L / L+ 

N / L− 

L / L+ 

N / L− 

Electrical “OFF” push-button 

Electrical “ON” push-button 

Second auxiliary release: 

F2 - shunt 

or F3 - undervoltage 

or F4 - undervoltage with delay 

Auxiliary make contact S3 or make S7 

Auxiliary break contact S3 or make S7 

Auxiliary make contact S4 or make S8 

Auxiliary break contact S4 or make S8 

Motor drive energy-storing mechanism 

Energy-storing mechanism motor drive switch S12 

M 

X5 

14 

13 


11 

10 

9 

8 

7 

6 

5 

4 

3 

2 

1 

“Emergency OFF” push-button or jumper - only for undervoltage 

release delayed 

L / L+ 

N / L− 

L / L+ 

N / L− 

54


CIRCUIT BREAKERS, SWITCH-DISCONNECTOR 3P 4P 

Diagram 

Example of control circuit connection 

L1 

(L+) 

B 

OFF 

L1 

(L+) 

ON 

-X5.2 

-X6.7 

-X7.9 

-X6.14 

-X5.12 

-X6.6 


-X7.14 

N 

1 

3 

5 


-X6.10 

-X6.4 

-X6.2 

-X5.10 

-X5.8 

-X5.6 

-X5.4 

L 

ETU 

electrical elektr. 

ON ON 

-S10 

N 

S 

I 

N 

G 

R 

-S11 

-F5 

QS 

electrical mech. 

ON ON 

mechanical mech. 

OFF ON 

-S12 

M 

P 

-Y1 

-F1 

-F3 

U< 

-S20 

-S24 

-T1 

-T2 

-T3 

-T4 

-Q1 

-S1 

-S2 

-S3 

-S4 

NSE0_01558a_oe 

N 

(L-) 

-X5.1 

-X6.8 

-X6.13 

-X5.11 

-X6.5 

-X7.13 

N 

(L-) 

-X8.9 

-X8.10 

* 

N 

2 

4 

6 

-X6.11 

-X6.9 

-X6.3 

-X6.1 

-X5.9 

-X5.7 

-X5.5 

-X5.3 

Diagram description 

* - jumper, if current transformer is not connected 

T1, T2, T3 - current transformers 

Q1 

- main contacts 

ETU 

- overcurrent release at the circuit breaker, switch-disconnector is without overcurrent release 

S1, S2, S3, S4 - auxiliary switches 

F1 

- 1st auxiliary release – shunt release 

F3 

- 2nd auxiliary release – undervoltage release 

F5 

- tripping coil – controlled by overcurrent release 

Y1 

- closing release 

S10 

- switch for electrical closing 

S12 

- energy-storing mechanism motor drive switch 

S20 

- signal switch “ready-to-close” 

S24 

- signal switch „switched off by overcurrent release“ – it can only be at the circuit breaker 

P 

- energy-storing mechanism 

M 

- motor 

R 

- indication and reset push-button on the overcurrent release – signals switching off by overcurrent release 

QS 

- energy-storing mechanism lever 

electrical ON - push-button for electrical ON on the front panel of the circuit breaker 

mechanical ON - push-button for mechanical ON 

B 

- recommended connection of control circuits – not part of the circuit breaker/switch-disconnector 

- ON – push-button for electrical remote switching on 

- OFF – push-button for electrical remote switching off 

55


CIRCUIT BREAKERS, SWITCH-DISCONNECTORS 3P 4P 

Connection and installation 

Recommended dimensions of main connections and min. cross sections 

Type Dimensions Cu busbars [mm] Minimum cross section [mm 2 ] 

ARION WL1106... 1x 60 x 10 600 

ARION WL1108... 1x 60 x 10 600 

ARION WL1110... 1x 60 x 10 600 

ARION WL1112... 2x 50 x 8 800 

ARION WL1116... 2x 50 x 10 1000 

ARION WL1208... 1x 80 x 8 500 

ARION WL1212 ... 2x 80 x 5 800 





ARION WL1340... 4x 100 x 10 4000 

ARION WL1350... 5x 120 x 10 6000 

ARION WL1363... 6x 120 x 10 7200 

Main (power) circuit 

- is connected by Cu busbars 

- to extend connection options, use connecting sets see „Types of main connections“ 

- reverse connection is possible (inversion of input and output terminals) without 

limitation of rated ultimate short-circuit breaking capacity Icu 

- we recommend to coat the busbars with paint 

- input and output conductors/busbars must be reinforced mechanically to eliminate 

transfer of electrodynamic forces into circuit breaker/switch-disconnector at short 

circuits see fig. 






Types of main connections 

Fixed design 

 

 

 

 


Front connection one series of 

holes - custom delivery 

Front connection two series 

of holes 



 

 

 

 

 


Front connection one series of 

holes - custom delivery 


of holes 



- custom delivery 

56




Terminal boards and connectors for connection of auxiliary circuits 

The delivered circuit breaker/switch-disconnector is always equipped with all connectors 

and terminal boards for connection of selected auxiliary circuits. 

Fixed design 


or 

or 

 

 

 

 

 

Terminal board with screw 

terminals for fixed circuit 

breaker/withdrawable 

device 

Blade contact block for fixed/ 


 

Terminal board with spring 



device 

 

Terminal board with screw 



device 

Terminal board with spring 



device 

Sliding contact module 

for withdrawable device 

Blade contact block for fixed/ 


Connecting cross sections of conductors of auxiliary circuits 

Conductor type Terminal type Screw terminals Spring terminals 

Cu stranded wire without sleeve connector 2 x 0.5 mm 2 ÷ 2 x 1.5 mm 2 , 1 x 2.5 mm 2 2 x 0.5 mm 2 ÷ 2 x 2.5 mm 2 

Cu stranded wire with sleeve connector (DIN 46 228 T.2) 1 x 0.5 mm 2 ÷ 1 x 1.5 mm 2 2 x 0.5 mm 2 ÷ 2 x 1.5 mm 2 

Cu stranded wires with double sleeve connector (DIN 46 228 T.2) 2 x 0.5 mm 2 ÷ 2 x 1.5 mm 2 - 

57



Description of circuit breaker, switch-disconnector 

Circuit breaker 

(28) 

(27) 

(26) 

(25) 

(24) 

(23) 

(22) 

(21) 

(20) 

(19) 

(18) 

(17) 

(16) 

Withdrawable device 

 

(1) 

 

(2) 

(3) 

(4) 

(5) 

(6) 

 

(7) 

(8) 

(9) 

 

(10) 

(11) 

(12) 

(13) 

 

(14) 

(15) 

1 Arch chutes 

2 Transport handle 

3 Label for description by the user 

4 Optional energy-storing mechanism motor drive switch or 

push-button „electrical ON“ 

5 Label with circuit breaker parameters (rated values) 

6 Mechanical indicator of energy-storing mechanism state 

7 Push-button „mechanical ON“ 

8 Circuit breaker rated current value 

9 Pictogram of instructions for withdrawable circuit breaker 

handling (for withdrawable design only) 

10 Operating cycle counter (optional) 

11 Energy-storing mechanism hand drive lever 

12 Crank for withdrawing/inserting (for withdrawable design only) 

13 Shaft of withdrawable circuit breaker shifting 

(for withdrawable design only) 

14 Label with data of circuit breaker equipment 

15 Hole for protective earthing 

16 Indication of circuit breaker position in the withdrawable device 

17 Table with data of earth-fault protection 

18 Locking device against shifting of withdrawable circuit breaker 

(optional) 

19 Mechanical unlock of the crank for withdrawing/inserting 

(for withdrawable design only) 

20 Overcurrent release 

21 Rated current module (rating plug) 

22 „Mechanical ON“ push-button or mushroom „Emergency OFF“ 

push-button (optional) 

23 Mechanical indicator „ready-to-close“ 

24 Mechanical indicator of circuit breaker state 

25 Mechanical indicator of switching off by overcurrent release 

(reset push-button) 

26 Locking device against unauthorized closing (optional) 

27 Control panel 

28 Sliding contact module 

(18) 

(17) 

(16) 

(15) 

(14) 

(13) 

(1) 

(2) 

(3) 

(4) 

(5) 

(6) 

(7) 

(8) 

1 Arc chute cover (optional) 

2 Exhaust holes 

3 Holes for crane hooks 

4 Insulation cover (optional) 

5 Insulation cover locking 

6 Type label of withdrawable device 

7 Disconnecting (break) contacts of main leads 

8 Hole for protective earthing - diameter 14 mm 

9 Locking device for withdrawing rails 

10 Blocking of withdrawal at open cubicle door (optional) 

11 Blocking device against cubicle door opening (optional) 

12 Slide in rail 

13 Coding of circuit breaker rated current 

14 Protection earthing – contact module for withdrawable device 

(optional) 

15 Coding of withdrawable device (optional) 

16 Lever for insulation cover opening (optional) 

17 Position signal switches in the withdrawable device (optional) 

18 Sliding contact module 

(12) 

(11) 

(10) 

 

(9) 

58



Dimensions - size I - fixed design 


5) 4) 

 

 

 

 

60.5 

 

33.5 

 

 

 

 

ø13.5 

 

434 

NSE00611 

275 

439.5 439,5 

123.5 123,5 

270 15 

300 10 

390 

541.5 

461.5 

 

 

 

 

 

 

 

 

 

 

 

 

327.5 

 

5) 4) 

 

ø13.5 

 

 

270 15 

300 10 

390 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ø13.5 

 

 

 

 

 

 

 

 

 

 

 

NSE00619 

b 

 

 

 

 

 

 

 

 

 


434 

NSE00611 

275 

439.5 439,5 



434 

NSE00611 

5) 4) 

275 

439.5 439,5 


270 15 

300 10 

390 


5) 4) 

434 

275 

439.5 439,5 


267.5 

127.5 

 

3) 

NSE00611 

270 15 

300 10 

390 

ø13.5 

113.5 

128.5 

60 90 90 90 

4-pole design 

1) Installation space for replacement of arc chutes. 

2) De-ionization space, space for connection of auxiliary circuits. 

4) Connectors of auxiliary circuits with screw terminals (SIGUT). 

5) Connectors of auxiliary circuits with spring terminals. 

6) Dimension to internal surface of closed cubicle door. 

7) Fastening points for circuit breaker installation. 

8) Locking device against unauthorized closing, on the front 

control panel. 

9) Locking device against mechanical On/Off. 

11) Contact area. 

Rated current Dimension a b c 

up to 1000 A 10 10 20 

1250 ÷ 1600 A 15 15 15 

59



Dimensions - size I - withdrawable design 


320 

270 

5) 

4) 

NSE00621 

 

 

 

 

NSE00630 

 

 

10) 

13 

210 

300 

30 

55 

123.5 123,5 275 

465.5 465,5 

 

 

 

 

 

 

367.5 

382.5 

 

 

 


140.5 

327.5 

 

3) 

10) 

55 

15 

90 90 90 

10) 

 

 

 

 

ø13.5 

 

 

 

 


320 

270 

5) 

4) 

NSE00621 

62.5 

 

ø13.5 

 

 

 

10) 

13 

210 

300 

30 

55 


465.5 465,5 

 

 

 

169.5 

 

 

 

 

 

 


10) 

320 

270 

5) 

13 

210 

300 

4) 

NSE00621 

30 

55 


465.5 465,5 

 

 

 

62.5 

 

 

169.5 

ø13.5 

 

 

 

 

 

 

 

 

 

 

4-pole design 




7) ARION WL in operating position. 

8) ARION WL in test position. 

9) ARION WL in disconnected position. 

10) Holes for fastening screws, diameter 10 mm. 



up to 1000 A 10 10 20 


60





320 

270 

5) 

4) 

NSE00621 

 

ø13.5 

 

NSE00629 

b 

10) 

13 

210 

300 

30 

55 

123,5 123.5 275 

465.5 465,5 

267.5 


 

 

 

 

 

327.5 

3) 

15 90 90 90 


320 

270 

5) 

4) 

NSE00621 


465.5 465,5 

 

NSE00631 

Ø M 12 

282,5 

26 33 

3) 

142,5 

55 55 55 55 

59 59 

10) 

13 

210 

300 

30 

55 


NSE00632 

15 90 90 90 

4-pole design 










up to 1000 A 10 10 20 


61



Dimensions - size II - fixed design 


 

5) 

4) 

 

 

NSE00642 

 

 

 

 

434 

NSE00633 

10 

270 85 

440 

570 



435.5 435,5 

541.5 

461.5 

 

 

 

 

 

5.5 

 

 

 

 

 

 

327.5 

 

3) 

90 130 130 130 

 

 

 

 

 

 

 

 

 

 

5) 

4) 

 

 

 

 

 

434 

NSE00633 

10 

270 85 

440 

570 


435.5 435,5 

 

 

 

 

 

 

 

 

 

 

ø13.5 

 


5) 

4) 

 

 

 

 

 

434 

NSE00633 

10 

270 85 

440 

570 


435.5 435,5 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ø13.5 

 


5) 

4) 

 

 

ø13.5 

b 

NSE00641 

434 

NSE00633 

10 

270 85 

440 

570 


435.5 435,5 

 

134.5 

 

 

 

 

113.5 


3) 

90 130 130 130 

4-pole design 









up to 2000 A 10 10 20 

2500 A 15 15 15 

3200 A 30 30 30 

62



Dimensions - size II - withdrawable design 


 

 

 

 

 

 

 

 

 

 


465.5 

 

 

 

 

 

 

40.5 

 

 

367.5 

382.5 

 

 

 

88.5 


140.5 

 

 

327.5 

 

 

 

 

 

 

 

ø13.5 

 

 

 

 

 

 

 

 

 

 


 

 

 

62.5 

 

 

ø13.5 

 

 

 

 

 

 

 

 

 

 


465.5 

 

 

 

 

169.5 

 

 

 

45.1 

 

 

 

 


 

 

 

 

 

 

 

 

 

 


465.5 

 

62.5 

 

 

 

 

 

169.5 

 

 

ø13.5 

 

 

 

 

 

 

 

 

 

 

 

 

4-pole design 









up to 2000 A 10 10 20 

2500 A 15 15 15 

3200 A 30 30 30 

63



Dimensions - size II - withdrawable design 


 

 

 

 

 

 

 

 

b 

NSE00651 

 


465.5 

 

 

 

3) 

 

 

 

 

 

 

 

 

 

55 45 130 130 130 


 

 

 

NSE00653 


90 

40 

NSE00654 

 

26 

33 


465.5 

282.5 282,5 

3) 

142.5 142,5 

59 

59 

 

 

 

 

 

 

 


45 130 130 130 

4-pole design 









up to 2000 A 10 10 20 

2500 A 15 15 15 

3200 A 30 30 30 

64



Dimensions - size III - fixed design 


NSE00655 

5) 4) 

 

 

 

 

434 


439 

 

541.5 

461.5 

 

 

 

 

327.5 

 

890 

270 

680 

205 


 

5.5 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ø13.5 

 

 

 

 

 

 


NSE00655 

5) 4) 

 

ø13.5 

 

 

 

 

 

434 

890 

270 

680 

205 


439 


 

 

 

 

 

 

 

 

 

 

 

 

4-pole design 








65



Dimensions - size III - fixed design 


NSE00655 

5) 4) 

 

 

ø13.5 

 

 

434 


439 

 

 

 

 

 

 

 

 

 

890 

270 

680 

205 


 

 

 

 

 

 


NSE00655 

5) 4) 

 

 

 

20 

10 

NSE00663 

434 


439 

330.5 

 

94.5 

 

 

3) 

890 

270 

680 

205 


ø13.5 

 

 

 

 

85 210 210 210 

4-pole design 








66



Dimensions - size III - withdrawable design 


 

 

 

 

 

 

 

 

 

 

 

 


466.5 

 

 

 

ø13.5 

 

 

 

 

 

 

40.5 

367.5 

382.5 

 

 

 

88.5 


140.5 

 

 

327.5 

 

NSE00674 

160 160 160 160 

57 85 210 210 210 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 


466.5 

 

 

 

 

 

169.5 

62.5 

 

ø13.5 

 

 

 

 

 

 

 

 

 

 


 

 

 

 

 

 

 

 

 

 


466.5 

 

 

 

 

62.5 

 

 

 

169.5 

 

 

ø13.5 

 

 

 

 

 

 

 

 

 

 

4-pole design 

3) Slots (4 mm wide, 5 mm deep) for interphase barriers. 









Rated current Dimension a b 

up to 4000 A 40 210 

5000 A 40 210 

6300 A 5 245 

67



Dimensions - size III - withdrawable design 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


466.5 

 

 

330.5 

94.5 


ø13.5 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

NSE00675 


26 

33 

704 

160 160 160 160 

 

 

 

 

 

 

 


466.5 

 

 


282,5 282.5 

142,5 142.5 

5 

30 

57 85 210 210 210 

590 800 

914 

59 59 

NSE00676 

4-pole design 

3) Slots (4 mm wide, 5 mm deep) for interphase barriers. 









Rated current Dimension a b 

up to 4000 A 40 210 

5000 A 40 210 

6300 A 5 245 

68



Dimensions - accessories 

Voltage transformers - 3WL9111-0BB70-0AA0 

3WL9111-0BB68-0AA0 

3WL9111-0BB64-0AA0 

277 


NSE0_01103a 

99 

Installation Montá na standardní on DIN lištu rail 35 mm 

External current transformer for N conductor with Cu busbars - size I - 3WL9111-0AA31-0AA0 

Ø ø13.5 13,5 

83 

55 

15 

97 

41 

130 

68 

51 44 

170 

NSE00606 

External current transformer for N conductor with Cu busbars - size II - 3WL9111-0AA32-0AA0 

Ø ø13.5 13,5 

30 30 

3x10 

50,5 50.5 

130 

68 

51 44 

170 

NSE00607 

90 

131 

External current transformer for N conductor with Cu busbars - size III - 3WL9111-0AA33-0AA0 

Ø ø13.5 13,5 

30 

30 30 

3x10 

52 

130 

68 

51 44 

170 

NSE00608 

160 


External current transformer for N conductor without Cu busbars - size I - 3WL9111-0AA21-0AA0 

R13.1 

13,1 

60 

16 

8 

8,9 

8.9 

R 22 

22 

81 

96,8 

40 

96.8 

NSE0_01375 

36 

70 

83 

18 

51 

69



Dimensions - accessories 

External current transformer for N conductor without Cu busbars - size II - 3WL9111-0AA22-0AA0 

65.5 

65,5 

R 27 

54 

115 

131 

NSE0_01376 

88 

95 

113 3 

51 

External current transformer for N conductor without Cu busbars - size III - 3WL9111-0AA23-0AA0 

161 

45 

3 

31 

R 15 

107 


NSE0_01377 

160 

184 

51 

Cutout in the cubicle door for control panel at use of the sealing frame 

! " 

5 - $ ? 

! 

" 

ø5.5 # # 

4 # 4 # 

ø5.5 

 

# # 

! 

" 

& # 

1) Mounting plane 

2) Control panel axis 

3) 8 mounting holes for the door sealing frame 

4) 3 mounting holes for the cubicle door blocking 

! # 

% # 

" 

" 

& 

$ # 

ø5.5 # # 

65.5 # 

 

 

 

" 

" 

Cutout in the cubicle door for control panel at use of the transparent cover 

4xR5 

4x 5,5 

NSE0_01030a 

80 

° 

295-300 

444 

341 

330 

17 

Circuit Montání breaker rovina 

mounting jistièe plane 

149 

Circuit Montání breaker rovina mounting jistièe plane 

70


WITHDRAWABLE DEVICE 3P 4P 

Description 

Withdrawable circuit breaker/switch-disconnector is intended for 

harsh industrial environment, which requires quick replacement 

of the circuit breaker, frequent inspections, and visible, galvanic 

disconnection of the circuit. 

Circuit breaker positions in the withdrawable device 

Figure 

Position 

signalling 

Main current 

paths 

Auxiliary circuits Cubicle door Insulation cover 

Position for 

maintenance 

 

 

 

 

 

 

disconnected disconnected open closed 

 

 

Disconnected 

position 

 

 

 

 

disconnected disconnected closed closed 

 

 

Test position 

(Inspection 

position) 

 

 

 

 

 

disconnected connected closed closed 

 

Operating 

position 

 

 

connected connected closed open 

 

 

 

 

Arc chute covers 

3WL9111-0AS..-0AA0 or complement code „R10“ 

Arc chute cover is used for the protection of the switchgear equipment 

which is installed directly above the circuit breaker arch chutes. The 

cover is optional accessory for the withdrawable device. 

3WL111-0AR12-0AA0 

Withdrawable circuit breaker and withdrawable device can be 

optionally equipped with an additional coding device, which is 

set according to the circuit breaker equipment. The coding device 

enables custom coding of both the circuit breaker and withdrawable 

device according to installed equipment. If the frame and the 

circuit breaker have different codes, it is not possible to slide the 

circuit breaker into the withdrawable device. The coding device has 

36 different codes. 


3WL9111-0AP..-0AA0 or complement code „R21“ 

Insulation cover consists of insulating strips, which cover lamellar 

contacts of main current paths in the withdrawable device. The 

insulation cover prevents from contact with the live parts of the 

device. The insulation strips can be lifted manually from the protective 

position by a lever. The insulation strips can be fixed in various 

positions by padlocks, which prevent from unauthorized handling. 

Coding device according to rated current 

Withdrawable circuit breaker and withdrawable device are normally 

equipped with coding device according to rated current. 

This coding device enables insertion into the withdrawable device 

only of the circuit breaker of relevant size, with compatible size of 

contact blades of the main current paths. 

 

 

 

 

 

(1) Withdrawable device, left internal side; right side by analogy 

(2) Coding pin on the guide rail on the withdrawable device 

(3) Guide rail 

(4) Withdrawable circuit breaker, right side; left side by analogy 

(5) Coding pin in the withdrawable device 

 

 

71


WITHDRAWABLE DEVICE 3P 4P 

3WL9111-0AH11-0AA0 

or complement code 

Position signal switches in the withdrawable device 

Plug-in can be additionally equipped with position signal switches. 

They enable determination of the circuit breaker position in the 

frame. Position signal switches are delivered installed on the 

bearing plate, with connecting cables long 1.5 m. Two types are 

delivered with various number of contacts. 

1 


or complement code 

Number of contacts according to type 

Type Position Disconnected Test Operating 

3WL9111-0AH11-0AA0 

or complement code „R16“ 

1 make-and-break 1 make-and-break 1 make-and-break 


or complement code „R16“ 

1 make-and-break 2 make-and-break 3 make-and-break 

States of position signal switches 

Signal switch Contacts Circuit breaker position 

Disconnected position Test position Operating position 

S30 

S31 / S32 

S33 / S34 / S35 

- contact opened 

- contact closed 

Parameters of the position signal switches 


250 V a.c./d.c. 


440 V a.c./250 V d.c. 


50/60 Hz 

Rated operating current I e 

AC-12 10 A/24 ÷ 440 V 

AC-15 

4 A/230 V, 3 A/440 V 

DC-12 

10 A/24 V, 2.5 A/48 V, 0.2 A/240 V 

DC-13 

3 A/24 V, 0.1 A/240 V 

Protection Fuse Max. PV10 8A gG 

Circuit breaker Max. LSN 8C/1 

72


OVERCURRENT RELEASE 3P 4P 

Description 

Basic description 

The releases are used for protection of transformers, lines, 

circuits, motors and other devices such as, for example, 

frequency converters etc. For each application it is possible 

to select an optimal overcurrent release according to requirements 

from the viewpoint of protective and other functions, 

e.g. data communication. For more information about data 

communication and measurement function see page 85. 

Overcurrent releases are electronic and controlled by a microprocessor. 

They work independently of the voltage in the 

circuit. The releases do not need an external power supply 

for their protective function. The power supply is necessary, if 

the circuit breaker is equipped with measuring function Plus 

or data communication. All releases enable the control of 

rated current in the range 0.4 ÷ 1 I n 

. Overview of parameters 

of overcurrent releases is on page 74. On other pages there is 

a description of individual releases including tripping characteristics. 

Release models ETU45B and higher enable the 

setting of I 4 t = constant The tripping (time-current) characteristic 

thus gets near to the fuse time-current characteristic. 

This ensures higher degree of selectivity between the circuit 

breaker and the fuses. Eventual failure of the microprocessor 

is signalled on all releases by red LED. 

Display 

Overcurrent release ETU45B can be equipped with a 4-line 

LCD display. Release ETU76B has an integrated graphic 

display. The displays can show, for instance, the values of 

measured quantities in a circuit. The parameters of ETU76B 

are set by means of the display and push-buttons. 

Overcurrent release parameter setting 

For overcurrent releases ETU15B to ETU45B, the basic parameters 

of protective functions are set by means of rotary 

switches. Some other parameters of ETU45B are set only via 

data communication. These functions are only accessible if 

the circuit breaker is equipped with measuring function Plus 

see page 85. ETU55B can be set only via data communication. 

Release ETU76B can be set directly by means of push-buttons 

and display via menu or also via data communication. 

Rated current module 

The releases, except ETU15B, contain a „Rated current module” 

(rating plug). Normally, each circuit breaker is equipped 

with a rated current module of the rating corresponding to 

maximum rated current of the circuit breaker. If a lower 

rated current of the circuit breaker is required, it is possible 

to deliver the circuit breaker with an overcurrent release containing 

the rated current module of required value, see page 

31. The rated current module can also be replaced additionally 

to decrease the circuit breaker rated current, see page 

39. The rated current module can be used for permanent 

or temporary reduction of the rated current. For example, 

in commissioning of a new plant a lower rated current is 

needed initially. The rated current control 0.4 ÷ 1 I n 

depends 

on the rated current module and not on the maximum current 

of the circuit breaker. 

Example: 

Circuit breaker with max. rated current 2500 A with standard 

rated current module - setting I r 

1000 ÷ 2500 A 

Circuit breaker with max. rated current 2500 A and rated 

current module with I n 

= 1000 A - setting I r 

400 ÷ 1000 A 

Switchable set of parameters 

Overcurrent releases ETU55 and ETU76B allow for setting of 

two parameter sets (two various tripping characteristics) 

in the memory for protection of two different devices. By 

simple switching over between these sets of parameters (for 

ETU55B and UTU76B via data communication, for ETU76B 

also via the menu of the release), the circuit breaker is ready 

to protect other device in 200 ms. 

N conductor protection or switching 

N conductor protection is ensured by overcurrent releases 

ETU27B or higher. For N conductor protection, the 3-pole circuit 

breaker must be completed by an external current transformer 

for N conductor, see page 40. 4-pole circuit breakers 

must be equipped with an internal current transformer for N 

conductor, see page 32. For 4-pole circuit breakers without 

the internal current transformer for N conductor N conductor 

is only switched. For possible setting of N conductor protection 

see the table on page 74. 

Earth-fault protection 

See page 84. 

Testing of overcurrent releases and disconnection 

signalling 

The functionality of an overcurrent release can be tested on 

the release itself. Basic test of protective functions of the 

release is activated by pressing the „TEST“ key on the release. 

Overcurrent releases can also be tested by special testers see 

page 39. For more information, please contact OEZ’s technical 

support. See the contact at the end of the catalogue. Detailed 

information about the overcurrent release testing will 

be delivered on request or see „Detailed Instructions for Use“ 

at www.oez.com. Overcurrent releases can signal a cause of 

disconnection by means of LEDs. LEDs are installed directly 

on the release. The signalling can be activated by „QUERY“ 

key. The LED corresponding to the protective function which 

caused the circuit breaker disconnection, lights when the key 

is pressed. The overcurrent release remembers the cause of 

the last disconnection until its memory is cleared by „CLEAR“ 

key, however maximum for 24 hours. 

Tripping characteristics 

Each type of the ARION WL release has its own characteristic. 

Complete characteristic of a release is created by combining 

individual parts of characteristics. Characteristics illustrate 

the response of the overcurrent release to current under 

the state, when current already passes through the circuit 

breaker. If the release is activated immediately after the circuit 

breaker closing i.e. when the release has not measured 

current, the relevant off-time is extended by up to 15 ms depending 

on the value of the current. Time and current tolerances 

are specified for the characteristics. The characteristics 

are valid at ambient temperature –5 to +55°C. The release 

can be operated at –20 to +70°C. For these temperature 

there is an extended tolerance range. The circuit breaker 

with overcurrent release ETU76B with graphic display can be 

operated at temperature up to +55°C. See program Sichr for 

visual demonstration of the tripping characteristics. 

Reset after circuit breaker switching off by overcurrent 

release 

After circuit breaker switching off by an overcurrent release, 

the release must be reset. It is not possible to switch on the 

circuit breaker without the release reset. After the circuit 

breaker switching off by overcurrent release, the red indicating 

push-button on the release, which is used for mechanical 

local signalling of „switched off by overcurrent release“ and 

also for local manual reset of the release, slips out. 


The circuit breaker can be equipped with automatic reset 

function (complement code „K01“). If the circuit breaker is 

equipped with this function, after its switching off by overcurrent 

release, the overcurrent release is reset automatically 

immediately and the circuit breaker is ready-to-close. The 

red indicating push-button remains extended after the 

automatic reset. It signals the circuit breaker switching off by 

overcurrent release until its manual or remote reset. 

Remote reset 

The circuit breaker equipped with the automatic reset can be 

also equipped with remote reset. The remote reset function 

makes it possible to carry out remote electrical reset of the 

indicating push-button signalling the switching off by overcurrent 

release. It is also possible to perform manual reset of 

the indicating push-button. 

Overcurrent release sealing 

It is possible to put a sealable transparent cover on the overcurrent 

release. The elements used for parameter setting are 

covered, and thus unauthorized access to parameter setting 

is eliminated. The openings in the cover enable access to 

query and test push-buttons. There is also a lockable cap, 

which prevents from manual reset of the „switched off by 

overcurrent release“ indicator. 

73


OVERCURRENT RELEASES - OVERVIEW OF PARAMETERS 3P 4P 

Parameters 

Basic functions Overcurrent release type ETU15B ETU25B ETU27B 

Overload protection + + + 

The function can be switched on and off − − − 

Setting range I R 

= I n 

x ... 0.5-0.6-0.7-0.8-0.9-1 0.4-0.45-0.5-0.55 

0.4-0.45-0.5-0.55 

0.6- 0.65-0.7-0.8-0.9-1 

0.6-0.65-0.7-0.8-0.9-1 

L Switchable overload protection (functional dependence I 2 t- or I 4 t) − − − 

I R 

Setting range of time lag t R 

for I 2 t 10 s fixed 10 s fixed 10 s fixed 


for I 4 t − − − 

Thermal memory − − − 

Sensitivity to phase failure − at t sd 

= 20 ms (M) 1) at t sd 

= 20 ms (M) 1) 

t R 

Protection of N conductor − − + 

N The function can be switched on and off − − + (by sliding switch) 

Setting range for N conductor I N 

= I n 

x ... − − 1 

Short-time delayed short-circuit protection − + + 


Setting range I = I x ... − 1.25-1.5-2-2.5-3-4-6-8-10-12 1.25-1.5-2-2.5-3-4-6-8-10-12 

S 

sd n 

Setting range of time lag t sd 

− 0-M-100-200-300-400 0-M-100-200-300-400 

I sd 

Switchable short-time delayed short-circuit protection − − − 

Setting range of time lag t sd 

at I 2 t − − − 

t sd 

Function ZSS-s (short selectivity control) − − − 

Instantaneous short-circuit protection + + + 


I 

Setting range I i 

= I n 

x ... 2-3-4-5-6-7-8 fixed at I i 

≥ 20 x I n 

, max. 50 kA fixed at I i 

≥ 20 x I n 

, max. 50 kA 

I i 

Earth-fault protection − − + fixed integrated 

Tripping and alarm signalling function − − − 

The tripping function can be switched on and off − − + (by rotary switch) 

The alarm signalling function can be switched on and off − − − 

G 

Measurement of short-circuit current by vectorial addition 

of currents by means of internal 

− − + 

Measurement of short-circuit current by external 

current transformer on protective conductor 

− − − 

Setting range of limit for tripping I g 

− − A-B-C-D-E 

Setting range of limit for alarm signalling I g 

− − − 

Setting range of time lag t g 

− − 100-200-300-400-500 ms 

Switchable function of short-circuit protection (functional dependence I 2 t) − − − 

Setting range of time lag t g 

at I 2 t − − − 

Function ZSS-g (short selectivity control) − − − 

Switchable parameter sets − − − 

LCD display Alphanumeric, 4-line − − − 

Graphic − − − 

Data communication Integrated CubicleBUS − − − 

Possible communication via PROFIBUS protocol − − − 

Possible communication via MODBUS protocol − − − 

Measuring function Measuring function Plus − − − 

LED signalling active overcurrent release + + + 

alarm signalling + + + 

faulty ETU + + + 

switching off by function L − + + 

switching off by function S − + + 

switching off by function I − + + 

switching off by function N − − + 

switching off by function G − − + 

G - alarm signalling − − − 

switching off by extended protective function − − − 

communication − − − 

Reporting by signal contacts via external CubicleBUS modules (optocouplers or relays) 

alarm: overload − − − 

load reduction, load connection − − − 

load reduction, load connection − − − 

alarm: high temperature − − − 

phase asymmetry − − − 

instantaneous disconnection at short circuit − − − 

short-time delayed disconnection at short circuit − − − 

tripping from overload − − − 

tripping from overload of N conductor − − − 

earth-fault tripping − − − 

alarm: earth fault − − − 

auxiliary relay − − − 

faulty ETU − − − 

− the function is unavailable; + the function is available; the function is optional 

1) 

- M = motor protection 

74


OVERCURRENT RELEASES - OVERVIEW OF PARAMETERS 3P 4P 

Parameters 

Basic functions ETU45B ETU55B ETU76B 

Overload protection + + + 

The function can be switched on and off − + (On/Off by means of data communication) + 

Setting range I R 

= I n 

x ... 0.4-0.45-0.5-0.55 

0.6-0.65-0.7-0.8-0.9-1 

0.4 ÷1 2) 0.4 ÷ 1 2) 

Switchable overload protection (functional dependence I 2 t or I 4 t) + (by sliding switch) + (On/Off by means of data communication) + 


pro I 2 t 2-3-5-5.5-8-10-14-17-21-25-30 s 2 ÷ 30 s 2) 2 ÷ 30 s 2) 


pro I 4 t 1-2-3-4-5 s 1-2-3-4-5 s 1-2-3-4-5 s 

Thermal memory + (On/Off by sliding switch) + (On/Off by means of data communication) 2) + (by means of menu/data communication) 

Sensitivity to phase failure at t sd 

= 20 ms (M) 1) + (On/Off by means of data communication) + (by means of menu/data communication) 

Protection of N conductor + + + 

The function can be switched on and off + by sliding switch + (by means of data communication) + (by means of menu/data communication) 

Setting range for N conductor I N 

= I n 

x ... 0.5 ÷ 1 0.5 ÷ 2 2) 0.5 ÷ 2 2) 

Short-time delayed short-circuit protection + + + 

The function can be switched on and off + (by rotary switch) + (by means of data communication) + (by means of menu/data communication) 

Setting range of I sd 

= I n 

x ... 1.25-1.5-2-2.5-3-4-6-8-10-12 1.25 ÷ 0.8 x I 2) cw 

1.25 ÷ 0.8 x I 2) 

cw 

Setting range of time l ag 

t sd 

M-100-200-300-400 ms M- 80 ÷ 4000 ms 2) M- 80 ÷ 4000 ms 2) 

Switchable short-time delayed short-circuit protection (functional dependence I 2 t) + (by rotary switch) + (by means of data communication) + (by means of menu/data communication) 

Setting range of time t sd 

at I 2 t 100-200-300-400 ms 100 ÷ 400 ms 2) 100 ÷ 400 ms 2) 

Function ZSS-s (short selectivity control) by means of CubicleBUS by means of CubicleBUS by means of CubicleBUS 

Instantaneous short-circuit protection + + + 

The function can be switched on and off + (by rotary switch) + (by means of data communication) + (by means of menu/data communication) 

Setting range of I i 

= I n 

x ... 1.5-2.2-3-4-6-8-10-12-0.8 × I cs 

2) 

1.5 x I n 

÷ 0.8 × I cs 

1.5 x I n 

÷ 0.8 × I 2) 

cs 

Earth-fault protection 

Tripping and alarm signalling function + + (by means of data communication) + 

The tripping function can be switched on and off + (by rotary switch) + (by means of data communication) + (by means of menu/data communication) 

The alarm signalling function can be switched on and off − + (by means of data communication) + (by means of menu/data communication) 

Measurement of short-circuit current by vectorial addition of currents by 

means of internal or external current transformer on N conductor 

+ + + 

Measurement of short-circuit current by external current transformer on 

protective conductor 

+ + + 

Setting range of limit for tripping I g 

A-B-C-D-E A-B-C-D-E A-B-C-D-E 

Setting range of limit for alarm signalling I g 

A-B-C-D-E A-B-C-D-E A-B-C-D-E 

Setting range of time t g 

100-200-300-400-500 ms 100 ÷ 500 ms 2) 100 ÷ 500 ms 2) 

Switchable function of short-circuit protection (functional dependence I 2 t) + + + 

Setting range of time t g 

at I 2 t 100-200-300-400-500 ms 100 ÷ 500 ms 2) 100 ÷ 500 ms 2) 

Function ZSS-g (short selectivity control) by means of CubicleBUS module by means of CubicleBUS module by means of CubicleBUS module 

Switchable parameter sets − + + 

LCD display Alphanumeric, 4-line + − − 

Graphic − − + 

Data communication Integrated CubicleBUS + + + 

Possible communication via PROFIBUS-DP 

Possible communication via MODBUS 

Measuring function Measuring function Plus + + + 

LED signalling active overcurrent release + + + 

alarm signalling + + + 


switching off by function L + + + 

switching off by function S + + + 

switching off by function I + + + 

switching off by function N + + + 

switching off by function G + (only with earth-fault protection module) + (only with earth-fault protection module) + (only with earth-fault protection module) 

G - alarm signalling + (only with earth-fault protection module) + (only with earth-fault protection module) + (only with earth-fault protection module) 

switching off by extended protective function + + + 

data communication + + + 

Reporting by signal contacts via external CubicleBUS modules (optocouplers or relays) 

alarm: overload + + + 

load reduction, load connection + + + 

load reduction, load connection + + + 

alarm: high temperature + + + 

phase asymmetry + + + 

instantaneous disconnection at short circuit + + + 

short-time delayed disconnection at short circuit + + + 

tripping from overload + + + 

tripping from overload of N conductor + + + 

earth-fault tripping + (only with earth-fault protection module) + (only with earth-fault protection module) + (only with earth-fault protection module) 

alarm: earth fault + (only with earth-fault protection module) + (only with earth-fault protection module) + (only with earth-fault protection module) 

auxiliary relay + + + 


2) 

- value setting step: Range 0 ÷ 1 1 ÷ 100 100 ÷ 500 500 ÷ 1000 1000 ÷ 1600 1600 ÷ 10000 10000 ÷ max 

Step 0.1 1 5 10 50 100 1000 

75


OVERCURRENT RELEASES - ETU15B 3P 4P 

Description 

Use 

Simple protection of installations in buildings and protection of 

equipment without time selectivity up to 3200 A. 

Properties 

adjustable overload protection with characteristic I 2 t 

with fixed delay t R 

= 10 s at 6 × I R 

Mechanical reset 

of reclosing 

blocking 

Option: safety lock, 

prevents from pressing 

of reset push-button after 

switching off 

by overcurrent 

instantaneous short-circuit protection in the range 2 ... 8 × I n 

protective function setting by rotary switch. 

For other technical data see the table on page 74 

Function 

Signalling: overcurrent 

release activated’ 

Alarm signalling: overload 

 

Signalling: faulty 

overcurrent release 

Rotary switch: 

setting of limit of 

switching off by overcurrent 


setting of limit 

of instantaneous tripping 

at short circuit 

Sealing lug 

Tripping characteristic 

10000 

1000 

R min 

. . 

R max 

NSE0_01527 

 

Test connector 

100 

10 

1 

i min 

i max 

0,1 . 

0,01 . 

0,1 . 

1 10 100 

/ n 

Tolerance at set current: 

L: tripping between 1.05 and 1.2 I R 

I: - 0 %, +20 % 

Tripping time tolerance: 

L: - 20 %, + 0 % for characteristic I 2 t 

I: < 50 ms 

76



Description 

Use 

Classical protection of building installations, motors and 

equipment with time selectivity up to 6300 A. 

Properties 



= 10 s at 6 × I R 

short-time delayed short-circuit protection, adjustable to 

1.25 ... 12× I n 

and 

instantaneous short-circuit protection set to 20 × I n 

, max. 50 kA 

overload signalling 

LED signalling of tripping cause 

release testing function 

protective function setting by rotary switch 


Function 

I R 


of reclosing 

blocking 


release activated 

Alarm signalling: overload 


Rotary switch: setting of limit 

of switching off by overcurrent 

Rotary switch: setting of 

short-time delayed 

short-circuit protection 

Fixed instantaneous 


 

 



of reset push-button after 

switching off 

by overcurrent 



Signalling of release 

tripping cause 


setting of tripping delay 


Sealing lug 

I sd 

t sd 

Query push-button 

Test push-button 

 

 

Reset push-button 



10000 

R min 

1000 0,4 . ... 1,0 . x n 

R max 

NSE0_01520 

100 

10 

1 

sd min 

sd max 

1,25 . ... 12 x n 

0 ... 0,4 . s 

0,1 

i i > 20 x n 

max. 50 kA 

0,01 . 

0,1 . 

1 10 100 

/ n 


L: - 20 %, + 0 % for characteristic I R 

S: - 0 %, +20 % 

I: - 0 %, +20 % 



S: - 0 %, + 60 ms or –0 %, +10% for characteristic with fixed delay 

I: < 50 ms 

77



Description 

Use 

Classical protection of building installations, motors and equipment 

with time selectivity up to 6300 A. The release has fixed integrated 

earth-fault protection module. 

Properties 



= 10 s at 6 × I R 




, max. 50 kA 




protective function setting by rotary or sliding switches 

possible protection of N conductor 

fixed integrated earth fault module - calculation of 

earth current from vector sum of individual currents 


Function 


of reclosing 

blocking 



Alarm signalling: 

overload 





short-time delayed 


Fixed instantaneous 



earth-fault protection 



 

 

 

 

 

 



of reset 

push-button after switching 

off by overcurrent 

Protection of N conductor: 

On/Off 






setting of tripping delay 


Sealing lug 


setting of delay of protection 

at earth fault 




Function LSI 

Function G 

10000 

1000 

R min 

0,4 . ... 1,0 . x n 

R max 

N 

NSE0_01519 

10000 

1000 

NSE0_01521 

100 

100 

10 

10 

g min 

g max 

1 

sd min 

sd max 

1,25 . ... 12 x n 

0 ... 0,4 . s 

0,1 . 

i i > 20 x n 

max. 50 kA 

0,01 . 

0,1 . 

1 10 100 

/ n 

100 ... 1200 A 1) 

1 

g max 

0,1 . ... 0,5 . s 

0,1 . 

g min 

0,01 . 

100 1000 10000 100000 

A 


L: tripping between 1.05 and 1.2 x I R 

S: - 0 %, +20 % 

I: - 0 %, +20 % 

G: - 0 %, +20 % 

1) Size Velikost I and II: 100 ... 1200 A 

Size Velikost III: 400 ... 1200 A. 



S: - 0 %, + 60 ms or –0 %, +10 % for characteristics with fixed delay 

I: < 50 ms 

G: - 0 ms, + 60 ms or –0 %, +10 % for characteristics with fixed delay 

78



Description 

Use 

Budget-priced universal release for intelligent buildings and for all 

industrial applications. 

Properties 

adjustable overload protection with characteristic I 2 t or I 4 t 


= 10 s at 6 × I R 




, max. 50 kA 




adjustable delay class for overload protection 

switchable characteristics I 2 t and I 4 t in overload area and in the 

area of short-time delayed short-circuit protection for better 

current selectivity with assigned fuses or circuit breakers 

thermal memory, which is used for protection at the circuit 

breaker reclosing after switching off by overload - it can be disabled 

possible protection of N conductor (separately adjustable) 

optional earth-fault protection module with separately 

adjustable alarm signalling and tripping functions 

possible connection of data communication and measuring 

function Plus 

optional high contract display with possibility of angle setting 

for better visibility 

protective function setting by rotary or sliding switches 


Mechanical reset of 

reclosing blocking 

Scrolling up 




overload 

COMMUNICATION 

EXTENSION F. 


Rotary switch: setting If limit 


Rotary switch: setting 

of short-time delayed 



of limit of instantaneous 

short-circuit protection 

Earth fault measurement switch 


 

of limit of earth 

fault protection 

 


 

of earth fault alarm 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Option: safety lock, prevents 

from pressing of reset 



Optional alphanumeric display 

Scrolling down 



Thermal memory: On/Off 

Protection of N conductor: On/Off 

Setting of overload limit 

of N conductor 

Switching of overload 

characteristics I 2 t/I 4 t 


tripping delay at overload 


tripping delay at short circuit 

Tripping cause signalling 

Sealing lug 

Optional earth-fault protection module 

Alarm signalling: earth fault 

Signalling: tripping 

by earth fault 

Rotary switch: setting of delay 

of earth-fault protection - t g 

/I 2 t g 



Function 

79




Function L 

Function S 

10000 

1000 

R 

0,4 . ... 1,0 . x n 

4 = const 

NSE0_01522 

10000 

1000 

sd 

NSE0_01523 

100 

2 = const 

100 

. 

1,25 ... 12 x n 

2 sd = const 

2 sd = const 

10 

1 

R 

2 ... 30 for 2 

1 ... 5 for 4 

10 

1 

0,1 . 

0,01 . 

0,1 . 

1 10 100 

/ n 

sd = const 0,1 . ... 0,4 . s 

0,1 

0,02 . ... 0,4 . s 

0,01 

0,1 1 10 100 

/ n 

Function I 

Function G 

10000 

1000 

NSE0_01524 

10000 

1000 

NSE0_01525 

100 

100 

g 

10 

10 

1 

0,1 . 

. . 

i 

1,5 x n ... 0,8 x cs 

0,01 

1 

0,1 . 

100 ... 1200 A 1) A 

g 0,1 . ... 0,5 . s 

0,01 . 

0,1 . 

1 10 100 

/ n 

. 

100 1000 10000 100000 

1) Size Velikost I and II : 100 ... 1200 A 

Size Velikost III : 400 ... 1200 A 



S: - 0 %, +20 % 

I: - 0 %, +20 % 

G: - 0 %, +20 % 



S: - 0 %, + 60 ms or –0 %, +10% for characteristics with fixed delay 

I: < 50 ms 

G: - 0 ms, + 60 ms or –0 %, +10% for characteristics with fixed delay 

80



Description 

Use 

Releases for special safety requirements for adjustability with 

exclusively external parameterization. For protection of generators 

and motors, for industrial applications. 




from pressing of reset 



Properties 



= 10 s at 6 × I R 



and 


, max. 50 kA 






switchable characteristics I 2 t and I 4 t in overload area and in 

the area of short-time delayed short-circuit protection for better 



breaker reclosing after switching off by overload – it can be disabled 





function Plus 

recognition of energy flow direction 

two parameter sets stored in the electronic release memory 

(switching over by an external signal) 

switchable overload protection for protection of modern drives 

adjustable delay of short-circuit protection up to 4000 ms 

adjustable protection of N conductor up to I N 

= 2 I n 

protective function setting by means of data communication 





overload 

COMMUNICATION 

EXTENSION F. 

Rated current module 

Field for designation of 

set values 

Optional earth fault 

 

protection module 


set values 



 

 

 

 

 

 




set values 



Alarm signalling 





set values 



Function 

Tripping characteristic identical to the overcurrent release ETU76B see page 83 

81



Description 

Use 

Release with versatile options for network analysis with graphic display. 

Properties 



= 10 s at 6 I R 



and 

instantaneous short-circuit protection set to 20 I n 

, max. 50 kA 






switchable characteristics I 2 t and I 4 t in overload area and in 

the area of short-time delayed short-circuit protection for better 



breaker reclosing after switching off by overload – it can be disabled 





function Plus 

recognition of energy flow direction 

two parameter sets stored in the electronic release memory 

(switching over by an external signal or directly on the release) 

switchable overload protection for protection of modern drives 

adjustable delay of short-circuit protection up to 4000 ms 

adjustable protection of N conductor up to I N 

= 2 I n 

protective function setting by means of data communication 

graphic presentation of all parameters and events and curves 

storage of events and tripping causes for specific fault analysis 

high contrast backlit graphic display with quiet mode. 






overload 

COMMUNICATION 

EXTENSION F. 


 


Rated current module 

Optional module of 

 

earth-fault protection 


set value 



 

 

 

 

 


from pressing of reset pushbutton 

after switching off by 

overcurrent 

Graphic display 

Control keys for 

setting of release parameters 








set value 




Function 

82


OVERCURRENT RELEASES - ETU55B, ETU76B 3P 4P 


Function L 

Function S 

10000 

1000 

R 

0,4 . ... 1,0 . x n 

4 = const 

NSE0_01522 

10000 

1000 

sd 

NSE0_01526 

100 

2 = const 

100 

1,25 . x n ... 0,8 . x cw 

10 

R 

2 ... 30 for 2 

1 ... 5 for 4 

10 

1 

0,1 . 

1 

0,1 . 

sd = const 

0,02 . ... 4 s 

2 

sd = const 

0,1 . ... 0,4 . s 

0,01 . 

0,1 . 

1 10 100 

/ n 

0,01 . 

0,1 . 

1 10 1 

/ n / cw 

Function I 

Function G 

10000 

1000 

NSE0_01524 

10000 

1000 

NSE0_01525 

100 

100 

g 

10 

10 

1 

0,1 . 

. 

i 

. 

0,1 . 

1,5 x n ... 0,8 x cs 

0,01 

1 

100 ... 1200 A 1) A 

g 0,1 . ... 0,5 . s 

0,01 . 

0,1 . 

1 10 100 

/ n 

. 

100 1000 10000 100000 

1) Size Velikost I and II : 100 ... 1200 A 

Size Velikost III : 400 ... 1200 A 



S: - 0 %, +20 % 

I: - 0 %, +20 % 

G: - 0 %, +20 % 



S: - 0 %, + 60 ms or –0 %, +10% for characteristics with fixed delay 

I: < 50 ms 

G: - 0 ms, + 60 ms or –0 %, +10% for characteristics with fixed delay 

83


OVERCURRENT RELEASES - EARTH-FAULT PROTECTION MODULE 3P 4P 

Description 

The earth-fault protection module measures earth-fault current. 

Adjustable delay (time lag) enables selective sequencing 

of more circuit breakers. On the module it is possible to select 

the function of signalling or tripping (Alarm/Trip) at exceeding 

of a set limit of the earth current. By pressing the Query 

push-button the tripping cause is indicated by LED. In the 

overcurrent release ETU27B the earth-fault protection module 

is integrated. Releases ETU45B, ETU55B and ETU76B are available 

in two variants: without earth-fault protection module or 

with integrated earth-fault protection module. 


Method of measurement 

1. Vectorial sum of currents 

Overcurrent release measures currents in all three phases 

and also in N conductor and evaluates earth-fault current by 

means of vectorial addition of these currents. 3-pole circuit 

breakers must be completed by an external current transformer 

for N conductor see page 40. 4-pole circuit breakers must be 

equipped with an internal current transformer see page 32. 

Earth-fault protection module GFM AT 45B 

Earth fault measurement 

mode switch 

Rotary switch setting 

the limits of tripping at 

earth fault 

Rotary switch setting 

the limits of alarm 


Earth-fault protection module GFM AT 55B - 76B 


the set measurement mode 


of earth fault 

Signalling of tripping 


Rotary switch of earthfault 

protection delay 

t g 

/ I 2 t g 


of earth fault 

Signalling of tripping 


2. Direct measurement of earth-fault current 

Direct measurement of earth-fault current is performed by 

current transformer with ratio 1200 A/1A and accuracy class 

1. Internal resistance of the circuit for the current transformer 

connection is 0.11 Ohm. The current transformer is installed on 

the earth conductor of the (power) transformer unit. 

Setting 

For ETU27B and ETU45B release the earth-fault protection 

module is set by switches. For ETU55B it is set by means of 

communication. For ETU76B it is set via menu or communication. 

It is possible to set: 

earth fault measurement mode 

alarm limits for signalling of earth-fault tripping 

earth-fault tripping delay 

Earth-fault protection with characteristic I 2 t 

All releases - except ETU27B - have switchable characteristic I 2 t 

= constant. The use of this characteristic reduces thermal load 

of protective conductor PE at short circuit. 


set limits 

3-pole circuit breaker, current transformer on N conductor, 

vector sum of currents 

3-pole circuit breaker, current transformer on earth 

conductor of the transformer unit, direct measurement 


set limits 

Setting range of I g 

Circuit breaker size 

I and II 

III 

A 100 A 400 A 

B 300 A 600 A 

C 600 A 800 A 

D 900 A 1000 A 

E 1200 A 1200 A 

4-pole circuit breaker, current transformer on earth 

conductor of the transformer unit, direct measurement 

84


MEASUREMENT AND DATA COMMUNICATION 3P 4P 

Description 

Measurement 

Circuit breaker equipped with relevant modules can measure 

electrical quantities in the protected circuit, e.g. current, 

voltage or power. The values can be displayed directly on the 

overcurrent release display or transferred by means of data 

communication. 

PLC SIMATIC S7 

data acquisition and 

processing 

PC with program Switch ES Power 

parameterization and visualization by 

means of PROFIBUS 

Data communication 

Data communication can be implemented via PROFIBUS or 

MODBUS protocol. Values can be obtained also in analog form 

via CubicleBUS module. Another method of transfer of the 

measured value is via BDA adapter with Ethernet protocol. 

This makes it possible to view the values on a standard PC. This 

solution is intended above all for service actions. 

The circuit breaker equipped with data communication enables: 

remote control 

setting of overcurrent release parameters 

state monitoring 

transfer of measured values 

Ethernet/ 

Intranet/ 

Internet 

BDA 

BDA Plus 

Output device 

e.g. notebook 

COM15 

BSS 

ETU 


Plus 

Module with digital outputs 

Module with configurable digital outputs 

Module with analog outputs 

Module with digital inputs 

ZSS module 

GSD files necessary for control unit programming will be 

delivered on request. 

Measurement 

Measurement variants and properties 

Variant Standard variant – without measuring function Plus Extended variant – with measuring function Plus 

Current, voltage, power (active, apparent, reactive), Energy, Cos φ, 

frequency, harmonic analysis 

Measured quantities 

Current 

- displays instantaneous value and records minimum and maximum value 

- enables storage of behaviour (curves) of current and voltage in the memory 4) 

- signals exceeding of the set limits of measured quantities 4) 

- extends protective functions 4) 

Necessary circuit breaker equipment 

Overcurrent release ETU45B or ETU55B 1) or ETU76B ETU45B or ETU55B 1) or ETU76B 

Measuring function Plus 

No – current measurement is standard function of the release 

ETU45B, ETU55B 1) , ETU76B 

Yes 

Voltage transformers No Yes 

Power supply No Yes 

Display of measured values 

Local Yes – on the overcurrent release display 2) Yes – on the overcurrent release display 2) 

Remote 

(PC, PLC, analog measuring instruments) 

Yes – the circuit breaker must be equipped with data communication 

PROFIBUS, MODBUS, CubicleBUS or with BDA adapter 

Yes – the circuit breaker must be equipped with data communication 

PROFIBUS, MODBUS or CubicleBUS 

Type designation for ordering 

Component/module type designation/complement code type designation/complement code 

ETU45B without display 1) ARION WL1-EB- ARION WL1-EB- 


ETU45B with display ARION WL1-FB- ARION WL1-FB- 

ETU55B 1) ARION WL1-JB- ARION WL1-JB- 

ETU76B ARION WL1-NB- ARION WL1-NB- 

Measuring function Plus No „F05“ 

Voltage transformers for 400 V a.c. 3) No 3WL9111-0BB68-0AA0 

Power supply No 6EP1333-2AA01 

1) 

- the circuit breaker must be equipped with data communication PROFIBUS, MODBUS or CubicleBUS for transfer and display of measured values - ETU55B has not a display 

2) 

- the circuit breaker must be equipped with overcurrent release ETU45B with display or ETU76B with graphic display 

3) 

- measuring transformers for other voltage see page 40 

4) 

- Detailed information about measuring function Plus will be delivered on request or see „Detailed Instructions for Use“ at www.oez.com. 

85

86 



Data communication - PROFIBUS, MODBUS, BDA adapter 

Data communication methods and properties 

Method of data communication PROFIBUS MODBUS BDA adapter 

Communication protocol PROFIBUS MODBUS Ethernet 

Connectible display and control unit PC, PLC - e.g. SIMATIC S7 On request PC 

SW of connected PC Switch ES Power On request Internet Explorer + JAVA 2 Virtual Machine 

HW of desktop PC 6GK1561-3AA01 – PCI card On request network card or port RS232 

HW of portable PC 

6GK1551-2AA00 – PCMCI card 

C79459-A1890-A10 – adapter for PCMCI card 

On request 

network card or port RS232 

Necessary circuit breaker equipment 

Overcurrent release ETU45B, ETU55B, ETU76B ETU45B, ETU55B, ETU76B ETU45B, ETU55B, ETU76B 

Power supply Yes Yes Yes 4) 

Communication module COM15 3) COM16 3) BDA adapter 3) 

Circuit breaker control 

Circuit breaker On/Off Yes Yes Yes 1) 

Reset of signalling „switched off by overcurrent release“ Yes 5) Yes 5) Yes 5) 

Free user digital output On/Off Yes Yes Yes 1) 

Signalling of circuit breaker state 

Circuit breaker state On/Off Yes Yes Yes 6) 

Switched off by overcurrent release Yes Yes Yes 6) 

Circuit breaker position in the withdrawable device Yes Yes 

1) 6) 

Yes 

Disconnected by undervoltage release Yes Yes No 

Ready-to-close Yes Yes Yes 6) 

Energy-storing mechanism state Yes Yes Yes 6) 

Ready-to-close Yes Yes Yes 6) 

Monitoring of input state of CubicleBUS module with digital inputs Yes Yes Yes 6) 

Parameter setting 

Change of parameters of protective functions 2) Yes 2) Yes Yes 

Parameter set switching 2) Yes 2) Yes Yes 

Maintenance information reset Yes Yes Yes 

Reset of minimum and maximum measured values Yes Yes Yes 

Event memory and behaviour memory clearing Yes Yes Yes 1) 

Setting of limits for measured value exceeding alarm Yes Yes Yes 

Setting of parameters of extended protective functions Yes Yes Yes 

Reading of parameters 

Reading of event protocol Yes Yes Yes 1) 

Reading of overcurrent release tripping protocol Yes Yes Yes 1) 

Download of protective function parameters Yes Yes Yes 

Contact wear Yes Yes Yes 6) 

Circuit breaker identification Yes Yes Yes 

Number of switching at load and in total, number of operating hours Yes Yes Yes 1) 

Number of switching off by release (function L, S, I total) Yes Yes Yes 

Download of limits for measured value exceeding alarm Yes Yes Yes 

Download of parameters of extended protective functions Yes Yes Yes 

Download of record of current and voltage behaviour Yes Yes Yes 

Alarms 

Alarm of switching off by overcurrent release with breaking current value/including time Yes Yes Yes 

Alarm with information of its start and end/including time Yes Yes Yes 

Alarm of exceeding of limits of measured value Yes Yes Yes 

Measured quantities 

Current in all phases including max. and min. value/including time Yes Yes Yes/No 

Temperature in the circuit breaker including max. and min. value/including time Yes Yes Yes/No 

Temperature in the cubicle including max. and min. value/including time Yes Yes No 

Current, voltage, power (active, apparent, reactive), Energy, Cos φ, 

frequency, harmonic analysis including max. and min. value 

Yes Yes Yes 

Type designation for ordering 

Component/module type designation/complement code type designation/complement code type designation/complement code 

ETU45B without display ARION WL1-EB- ARION WL1-EB- ARION WL1-EB- 


ETU45B with display ARION WL1-FB- ARION WL1-FB- ARION WL1-FB- 

ETU55B ARION WL1-JB- ARION WL1-JB- ARION WL1-JB- 

ETU76B ARION WL1-NB- ARION WL1-NB- ARION WL1-NB- 

Data communication „F02“ „F12“ 3WL9111-0AT33-0AA 

BSS module included „F02“ included „F12“ optional „F01“ 

Source 6EP1333-2AA01 6EP1333-2AA01 6EP1333-2AA01 4) 

- only for circuit breaker equipped with measuring function Plus, see page 85 

1) 

- only if the circuit breaker is equipped with data communication PROFIBUS or MODBUS 

2) 

- only with ETU55B or ETU76B 

3) 

- COM15 is the module of data communication via protocol PROFIBUS, COM16 is the module of data communication via protocol MODBUS, BDA adapter is the module of data communication via protocol ETHERNET 

4) 

- only if power supply is not provided for data communication or measuring function Plus 

5) 

- the circuit breaker must be equipped with remote and automatic reset see page 32 

6) 

- the circuit breaker must be equipped with BSS module see page 32



Data communication - CubicleBUS 

Module with digital outputs 

6 digital outputs 

outputs by means of relays or optocouplers 

outputs can be assigned to selected circuit breaker state signals 

output assignment by means of rotary switch 

max. 2 modules can be connected to the circuit breaker 

Module with configurable digital outputs 

6 digital outputs 

outputs by means of relays or optocouplers 

outputs can be assigned to selected circuit breaker state signals 

max. 1 module can be connected to the circuit breaker 

configuration by means of BDA adapter or PC with software 

„ES Switch Power“ via PROFIBUS 

Module with analog outputs 

four analog outputs (3 phases + N pole) 

at a time it can transfer one selected measured quantity 

with values in all three phases and N pole 

possibility of selection of analog output type 0 ÷ 10 V or 4 ÷ 20 mA 

selection of quantities to be transferred and selection of analog output 

type is possible by means of rotary switch 

max. 2 modules can be connected to the circuit breaker 

Module with digital inputs 

module has two modes 

control voltage 24 V d.c. 

max. 2 modules can be connected to the circuit breaker; one in mode 1 and 

the other in mode 2 

MODE 1: user inputs transferred via protocol PROFIBUS 

or Ethernet (BDA adapter) - 6 digital inputs 

MODE 2: switching of overcurrent release parameter sets 

(for ETU55B, ETU76B) - 1 digital input 

ZSS module – short selectivity control 

at connection of circuit breakers ARION WL at more levels it ensures full 

selectivity at short-circuit protection 

ensures as short breaking time as possible in case of short circuit 

all controlled circuit breakers must be equipped with one ZSS module 

At short circuit in the protected circuit, the affected circuit breaker sends “short circuit 

protected” alarm. Consequently, the system can determine the place of short 

circuit, and disconnect the circuit breaker, which is closest to the short circuit in 

the energy flow direction. Higher-level circuit breakers are in standby mode. If the 

circuit breaker, which is closest to the short circuit, does not send the information 

of the short circuit (for example, the circuit breaker is set incorrectly), the short 

circuit will switch off the closest higher-level circuit breaker immediately, without 

waiting for expiration of selectivity time. 

3WL9111-0AT25-0AA0 – outputs with optocouplers 

3WL9111-0AT26-0AA0 – relay outputs 

3WL9111-0AT30-0AA0 – outputs with optocouplers 

3WL9111-0AT20-0AA0 – relay outputs 

3WL9111-0AT23-0AA0 

3WL9111-0AT27-0AA0 

3WL9111-0AT21-0AA0 

Detailed information about CubicleBUS modules will be delivered 

on request or see „Detailed Instructions for Use“ at www.oez.com. 

Parameters of CubicleBUS modules 

Name Module with digital outputs Module with configurable Module with analog outputs Module with digital inputs ZSS module 

digital outputs 

Type designation – – 3WL9111-0AT23-0AA0 3WL9111-0AT27-0AA0 3WL9111-0AT21-0AA0 

Outputs with optocouplers 3WL9111-0AT25-0AA0 3WL9111-0AT30-0AA0 – – – 

Relay outputs 3WL9111-0AT26-0AA0 3WL9111-0AT20-0AA0 – – – 

Function digital outputs programmable digital outputs analog outputs digital inputs short selectivity control 

Number of inputs – – – 6/1 according to mode, see the text – 

Number of outputs 6 6 4 (3f + N) – – 

Output/input type digital digital analog digital – 

Rated operating current U e 

Relay output AC15 6 A/250 V a.c. 6 A/250 V a.c. – – – 

DC13 2 A/24 V d.c., 0,2 A/250 V d.c. 2 A/24 V d.c., 0,2 A/250 V d.c. – – – 

Output with optocoupler 100 mA/24 V d.c. 100 mA/24 V d.c. – – – 

87


AUXILIARY SWITCHES, SIGNAL SWITCHES 3P 4P 

Description 


The switches signal always the state of main contacts of 

the circuit breaker. Each circuit breaker is equipped with 

two make and break contacts. The circuit breaker can by 

completed by additional contacts. 

Parameters 

Auxiliary switches – designation in the diagram: S1, S2, S3, S4, S7, S8 


500 V a.c./d.c. 


500 V a.c/d.c. 


50/60 Hz 


AC-12 10 A/24 ÷ 500 V 

AC-15 

4 A/24 ÷ 230 V, 3 A/400 V, 2 A/500 V 


10 A/24 V, 8 A/48 V, 3.5 A/110 V, 1 A/220 V 

DC-13 

8 A/24 V, 4 A/48 V, 1.2 A/110 V, 0.4 A/220 V 

Signal switch 

„switched off by overcurrent release” 

– designation in the diagram: S24 

This contact signals the circuit breaker disconnection by 

overcurrent release due to overload, short circuit or earth 

fault. The signal switch is optional accessory. If the circuit 

breaker is equipped with data communication, this contact 

is standard accessory. 

Signal switch “ready-to-close” 


Circuit breakers are standardly equipped with an optical 

indicator of readiness to closing. The switch enables remote 

signalling „ready-to-close“. The signal switch is optional 

accessory. If the circuit breaker is equipped with data communication, 

this contact is standard accessory. 

Signal switch of energy-storing mechanism state 


Circuit breakers are standardly equipped with an optical 

indicator of energy-storing mechanism state. The switch 

enables remote signalling, whether the energy-storing 

mechanism is wound up or released. The signal switch is 

optional accessory. If the circuit breaker is equipped with 

data communication, this contact is standard accessory. 

Parameters 



250 V a.c./d.c. 


440 V a.c./250 V d.c. 


50/60 Hz 


AC-12 8 A/250 V 


6 A/24 V, 0.4 A/125 V, 0.2 A/250 V 

Diagram see page 54 

88


SHUNT RELEASE, AUXILIARY POWER SOURCE FOR SHUNT RELEASE 3P 4P 

Description 

Shunt release 

Shunt release causes immediate disconnection of the circuit 

breaker when voltage is applied on it. The shunt release is 

delivered in the version for short-time excitation (overexcitation) 

with load factor 5% and in the variant for continuous 

excitation with load factor 100%. Continuously excited release 

enables circuit breaker blocking in disconnected state and 

blocking of eventual circuit breaker reclosing. It is possible to 

buy an auxiliary power source for shunt release, which enables 

circuit breaker disconnection at interruption of control circuit 

power supply. 

Auxiliary release signal switch 

Shunt release state is signalled by the auxiliary signal switch. 


Parameters 

Shunt release – designation in the diagram: F1, F2 


110, 230 V a.c. 

24, 30, 48, 60, 110, 220 V d.c. 


50/60 Hz 

Power input I e 

15 W/15 VA 

Characteristic 

U>= 0.7 U e 

circuit breaker must be switched off 

Control pulse 

min. 60 ms 

Time to switching off 

80 ms 

Protection Circuit breaker LSN 1C/1 

Shunt release signal switch – designation in the diagram: S22 or S23 


250 V a.c./d.c. 


440 V a.c./250 V d.c. 


50/60 Hz 


AC-12 8 A/250 V 


6 A/24 V, 0.4 A/125 V, 0.2 A/250 V 

Auxiliary power source for shunt release 

Operating voltage Type Maximum power supply time 

110 V a.c./d.c. 3WL9111-0BA13-0AA0 5 min from failure 

230 V a.c./220 d.c. 3WL9111-0BA14-0AA0 5 min from failure 

UNDERVOLTAGE RELEASE 3P 4P 

Description 

Undervoltage release 

Undervoltage release causes instantaneous disconnection of 

the circuit breaker at drop of control voltage of the release 

under a specified limit or at full loss of voltage. If the undervoltage 

release is not excited, it is not possible to switch on 

the circuit breaker mechanically or electrically. The release is 

delivered in two variants; short-time delayed with delay of 80 

or 200 ms and long-time delayed with delay of 0.2 to 3.2 s. 

Auxiliary release signal switch 

Undervoltage release state is signalled by the auxiliary signal 

switch. 

Parameters 

Shunt release – designation in the diagram: F3, F4 


110 , 230 V, 400 V a.c. 

24 1) , 30 1) , 48, 110, 220 V d.c. 


50/60 Hz 


5 W/5 VA (holding 200 W/200 V) 

Characteristic 

U>=0.85 U e 

circuit breaker can be switched on 

U


LOCKING AND BLOCKING DEVICES 3P 4P 

Description 

Locking device against unauthorized closing 

This function prevents from circuit breaker closing and meets the 

requirements of EN 60 204 (VDE 0113) for safe disconnection 

from the network. The locking device is effective only on given 

circuit breaker. After circuit breaker replacement, the closing is 

not prevented until the new circuit breaker is locked against 

unauthorized closing. After activation of the locking device the 

circuit breaker must be switched off. The lock is effective only 

with withdrawn key. The key can be withdrawn only in position 

“OFF”. With the circuit breaker “ON” the locking device is blocked. 

Locking device against unauthorized closing, 

independent of the circuit breaker 

This special function for withdrawable circuit breakers prevents 

from circuit breaker closing, is independent of the circuit 

breaker, and meets the requirements of EN 60 204 (VDE 

0113) for safe disconnection from the network. It prevents 

from unauthorized closing of the circuit breaker also after 

its replacement by other circuit breaker. The locking is effec- 

tive only with the circuit breaker switched off and the key 

withdrawn. The key can be withdrawn only in position “OFF”. 

With the circuit breaker “ON” the locking device is blocked. 

Protective caps for mechanical On/Off 

They prevent from unauthorized closing/opening of the circuit 

breaker on the control panel. For the variant with locking by 

means of a safety lock, it is only possible to press the push-buttons, 

if the key is inserted. The circuit breaker can be switched 

on/off remotely. The lock is effective only with withdrawn key. For 

the variant with locking by means of a padlock, the push-buttons 

are covered by the caps with hole of diameter 6.5 mm. The holes 

enable the circuit breaker control by means of a special tool. 

Locking of the energy-storing mechanism hand drive 

lever 

The energy-storing mechanism drive lever can be locked by 

a padlock. After it, it is not possible to wind up the energystoring 

mechanism by the lever. 

Locking device against shifting of withdrawable 

circuit breaker 

It prevents from withdrawal of the crank for circuit breaker 

shifting. The circuit breaker is thus secured against withdrawing. 

The lock is effective only at the key withdrawn. 

Blocking device against circuit breaker shifting at 

open cubicle door 

The crank for circuit breaker withdrawing/inserting is blocked 

and cannot be withdrawn. Circuit breaker cannot be moved. 

The blocking is effective only with the crank inserted. 

Blocking device against cubicle door opening 

Blocking is transferred by Bowden cable. 

It is not possible to open the cubicle door, if: 

fixed circuit breaker is switched on 

withdrawable circuit breaker is in operating position 

Mechanical interlocking 

Mechanical interlocking can block 2 or 3 circuit breakers/ 

switch-disconnectors. The interlocking is solved by means of 

Bowden cables. It is possible to interlock circuit breakers and 

switch-disconnectors of both fixed and withdrawable design. 

For example, it is possible to block 3 devices: 2 circuit breakers 

of withdrawable design and one switch-disconnector of fixed 

design. Mechanical interlocking is only functional if the circuit 

breaker of withdrawable design is in operating position. The 

distance between blocked circuit breakers/switch-disconnectors 

is given by the length of the used Bowden cables. 

Circuit breakers/switch-disconnectors can be installed next 

to each other or above each other. Circuit breakers/switchdisconnectors 

equipped with mechanicalinterlocking are 

standardly equipped with 2 m Bowden cables. It is possible 

to buy separately Bowden cables of the length 2 m, 3 m or 

4.5 m. At use of mechanical interlocking for three circuit 

breakers/switch-disconnectors, it is necessary to order to each 

circuit breaker/switch-disconnector separately one additional 

Bowden cable of relevant length. Mechanical endurance of the 

mechanical interlocking is 10 000 cycles. 

Conditions of use and correct function of mechanical 

interlocking: 

Bowden cables must be, if possible, led straight, without 

undue bends 

Bend radius of the Bowden cable must be higher than 

500 mm 

The sum of all bend angles of the Bowden cable must not 

be higher than 640° 

At arrangement of the interlocked circuit breakers/ 

switch-disconnectors above each other the interlocking 

mechanisms must be in row above each other 

The distance between the blocked circuit breakers/ 

switch-disconnectors is given by the length of the 

Bowden cables which must be led according to the 

mentioned rules 

Bowden cables must be fixed in the cubicle already 

before mechanical interlocking setting 

Fixed Bowden cables must not prevent circuit breaker/ 

switch-disconnector handling or cubicle door opening 

Example of possible interlocking 

- max. 1 circuit breaker can be 

switched on 

- max. 2 arbitrary circuit 

breakers can be switched on 

- max 1 circuit breaker can be 

switched on 

- 2 transformers or only generator can 

be switched on 

- transformer and generator are blocked 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For other information see Detailed Instructions for Use at www.oez.com. 

90


DRIVES AND CLOSING RELEASES 3P 4P 

Description 

Hand drive 

Each circuit breaker is equipped with the hand drive. Hand 

drive lever is used for mechanical winding up of the energystoring 

mechanism. 

Motor drive 

It is used for automatic winding up of the spring energystoring 

mechanism of the closing mechanism. The drive is 

switched on automatically, if the energy-storing mechanism is 

not wound up (if supply voltage is applied). After energy-storing 

mechanism winding up, the drive is switched off automatically. 

Manual winding up of the energy-storing mechanism by 

a lever is independent of the motor drive. 

Motor drive switch 

It switches the motor drive off. 

Operating cycle counter 

The circuit breaker with the motor drive can be equipped 

with 5-place cycle counter. The counter adds „1” after each full 

winding up of the energy-storing mechanism. 


It enables local (by electrical ON push-button on the front 

control panel) or remove switching the circuit breaker on by 

electrical pulse. The closing release is delivered in the version 

for short-time excitation (overexcitation) with load factor 5% 

and in the version for continuous excitation with load factor 

100%. Circuit breakers switching on by means of mechanical 

“ON” push-button on the front panel of the circuit breaker is 

independent of the closing release. 

Parameters 

Hand drive 

Number of lever pushing for full 

9 

winding up of the energy-storing 

mechanism 

Control force 

230 N 

Motor drive 


110 , 230 V a.c. 

24, 30 1) , 48, 60 1) , 110, 220 V d.c. 


50/60 Hz 


110 W/110 VA 

Time to energy-storing 

mechanism winding up 

> 10 s 

Protection 24 ÷ 60 V PV10 2A gG, LSN 2C/1 

110 ÷ 230 V LSN 1C/1 



110 , 230 V a.c. 

24 1) , 30 1) , 48, 60, 110, 220 V d.c. 


50/60 Hz 


15 W/15 VA 

Control pulse 

min. 60 ms 

Time to switching off 

80 ms 

Protection Circuit breaker LSN 1C/1 

1) 

- only for release with load factor 100 % 


91


GLOSSARY OF TERMS 

Note: Precise wording of definitions and texts relating to a given term are detailed in the respective standards (see Name). 

Name Symbol Explanation 


EN 60947-1; 4.3.1.1 

Rated insulation voltage 

EN 60947-1; 4.3.1.2 

Rated current 

EN 60947-2; 4.3.2.3 

U e 

U i 

I n 

Voltage fixed by the manufacturer. Several pertinent tests relate to its determination, as may also the utilization 

category. Along with the rated (operating) current, it determines the device’s utilization. The highest 

value of rated operating voltage may in no case be greater than the value of the rate insulation voltage U i 

. 

Voltage measure to which are related tests of dielectric strength and creepage distance. 

Current value of particular circuit breaker that can be handled uninterruptedly. The highest current 

valued tripping the circuit breaker in conformity with a specifically stated tripping characteristic. 

Reduced rated current I r 

Specifically established, reduced value of I n 

current for a regulated time-dependent (thermal) release 

and that the circuit breaker can handle continuously. Maximum setting is at value equal to I n 

. Changing 

I r 

shifts the release’s tripping characteristic along the current axis. (I r 

= k x I n 

holds where k ≤ 1) 

Tripping time at a given I r 

multiple t r 

Time after which circuit breaker will trip, if a current flows through it that is equal to the given multiple 

of I r 

. Changing t r 

shifts the tripping characteristic along the time axis. 

Actuating current of (selective) release’s timeindependent 

delay 

I rmv 

Minimum current value causing the release’s time-independent delay to actuate. 

Delay of time-independent delayed release t v 

If a current flows through the circuit breaker equal to at least I rmv 

but not reaching I rm 

the circuit breaker 

will trip with time delay t v 

. Total shut-off time is influenced by the tripping of the circuit breaker itself 

and is about 10 ÷ 20 ms longer. 

Actuating current of time-independent 

instantaneous (short-circuit) release 

Rated operating current 

EN 60947-1; 4.3.2.3 

Rated normal current 

EN 60947-1; 4.3.2.4 

Rated ultimate short-circuit breaking capacity 

EN 60947-2; 2.15.1; 4.3.5.2.1 

Rated short-circuit service breaking capacity 

EN 60947-2; 2.15.2; 4.3.5.2.2 

Rated short-time withstand current 

EN 60947-1; 4.3.6.1 

EN 60947-2; 4.3.5.4 

EN 60947-3; 4.3.6.1 

I rm 

I e 

I u 

I cu 

I cs 

I cw 

Minimum current value causing the time-independent instantaneous release to actuate. 

Rated operating current of device (switch-disconnector) is fixed by the manufacturer with consideration 

for the rated operating voltage, rated frequency, rated operation, utilization category and type of 

protective cover, if that comes into consideration. 

Current value set by the manufacturer and which the device can handle in continuous operation, i.e. 

during a period longer than 8 hours (weeks, months, or longer). 

Ultimate short-circuit breaking capacity value expressed as the rms value of the alternating component 

of the assumed short-circuit current that the circuit breaker must be able to manage in the mode: 1x 

switching off of the short circuit and a following 1x make-break sequence. After testing, the circuit 

breaker need not be able to conduct the rated current uninterruptedly. I cu 

is set for the rated operating 

voltage at the rated frequency and at the established power factor for alternating current or at the time 

constant for direct current. Must fulfil the condition: I cu 

≥ I k 

“ 

Value of the operating short-circuit breaking capacity expressed as the rms value of the alternating 

component of the assumed short-circuit current that the circuit breaker must be able to manage in 

the mode: 1x switching off of the short circuit and a following 2x make-break sequence. May also 

be expressed as a percentage of I cu 

. After testing, the circuit breaker must be able uninterruptedly to 

conduct the rated current and to switch off the overcurrent. Temperature increase of the main terminals 

may be greater. I cs 

is set for the rated operating voltage at the rated frequency and at the established 

power factor for alternating current or at the time constant for direct current. Permitted: I cs 

≥ I k 

“ 

Value of short-time withstand current specified by the manufacturer that the device is able to handle 

without damage during a designated time period (short-time delay). In case of alternating current, it 

is the rms value of the alternating component of the assumed short-circuit current I p 

. 

92

GLOSSARY OF TERMS 



Name Symbol Explanation 

Rated short-circuit making capacity 

EN 60947-1; 4.3.6.2 

EN 60947-2; 4.3.5.1 

EN 60947-3; 4.3.6.2 

Initial peak short-circuit current 

EN 60909-0; 1.3.5 

Surge short-circuit current 

EN 60909-0; 1.3.8 

Prospective short-circuit current 

EN 60947-1; 2.5.5 

EN 60909-0; 1.3.3 

Rated pulse withstand voltage 

EN 60947-1; 4.3.1.3 

Overvoltage category 

EN 60947-1; 2.5.60 

Rated frequency 

EN 60947-1; 4.3.3 

Utilization category 

(circuit breakers - timing selectivity) 

EN 60947-2; 4.4 


(switch-disconnectors - switching mode) 

EN 60947-3; 4.4 

Pollution degree 

EN 60947-1; 2.5.58; 6.1.3.2 

I cm 

“ 

I k 

i p 

I p 

U imp 

f n 

Value of short-circuit making capacity specified by the manufacturer for the rated operating voltage 

at the rated frequency and at the established power factor for alternating current or at the time 

constant for direct current. It is expressed as the maximum assumed peak current. Must fulfil the 

condition: I cm 

≥ i p 

Short-circuit current value at the moment of its arising at a given point in the electrical distribution 

expressed as the rms value of the alternating symmetrical component of the assumed short-circuit 

current. 

Maximum possible momentary value of the assumed short-circuit current. (Corresponds to the 

moment the short arises, as a result of which there occurs the peak value of the short-circuit current.) 

Short-circuit current value, which would flow through the circuit if the protection device were replaced 

and a short circuit were experienced by conductors with negligible impedance. (In a three-phase 

distribution, it is assumed that the short circuit is simultaneous in all phases.) 

Peak value of the voltage impulse of the prescribed form and polarity which the device is able to 

withstand without failure at the established conditions and pertinent to which is the value of the 

separating air distance. U imp 

of the device must be equal to or higher than the value established for 

momentary overvoltage at the point in the circuit (overvoltage category) where the device is used. 

Numerically defined level of momentary overvoltage, i.e. overvoltage having its origin in atmospheric 

or switching. Standard EN 60664-1 establishes for electrical equipment the overvoltage categories: 

Overvoltage category IV - service entrance, outside lead 

Overvoltage category III - fixed wiring 

Overvoltage category II - appliances 

Overvoltage category I - light-current appliances 

Frequency of the supply network for which the device is proposed and that corresponds to its other 

characteristics values. 

Utilization category of circuit breaker establishes whether or not the circuit breaker specifically is 

intended for providing selectivity by means of intentional time delay (timing selectivity) with other 

protective devices connected in series on the load side in short-circuiting conditions. 

Utilization category: 

A - circuit breakers are not specifically intended for providing timing selectivity 

B - circuit breakers are specifically intended for providing timing selectivity 

Utilization category defines the assumed use of switch devices (switch-disconnectors). Characterised 

by values of current and voltage, expressed as multiples of rated operating current and rated operating 

voltage, and further by power factors or time constants of the circuit. 


AC-21B (DC-21B) - infrequent switching of resistive loads, including moderate overloading 

AC-22B (DC-21B) - infrequent switching of mixed resistive and inductive loads, including moderate overloading 

AC-23B (DC-23B) - infrequent switching of motor loads or other highly inductive loads. 

Pollution degree relates to the conditions of the surrounding environment for which the device is intended. 

Pollution degree: 

1 - No contamination will occur, or only dry, non-conducting contamination. 

2 - Normally occurs only non-conducting contamination, but sometimes there may occur temporary 

conductibility due to condensation. 

3 - There occurs conductive contamination or dry non-conducting contamination that with the effect of 

condensation will become conductive. 

4 - Contamination generates continuous conductibility, by means of, for example, conductive dust, rain or snow. 

93


NOTES 

94


NOTES 

95

Air circuit breakers ARION WL 

CONFORMITY DECLARATION 

Assurance of issued Conformity Declarations for products made by OEZ s.r.o. 

presented in this catalogue according to Law No.22/97 LD and consecutive statutory rules 

Conformity No. Declaration of Unit Type 

219600/0701 Air circuit breaker - switch-disconnector ARION WL11 

219700/0701 Air circuit breaker - switch-disconnector ARION WL12 

219900/0701 Air circuit breaker - switch-disconnector ARION WL13 

Place of issue: Letohrad Authorized person: Ing. Jaroslav Toman 

Date of issue: 7. 12. 2006 Position: Managing Director 

96

OEZ s.r.o. 

Šedivská 339 

561 51 Letohrad 

Czech Republic 

tel.: +420 465 672 379 

fax: +420 465 672 398 

e-mail: oeztrade@oez.cz 

www.oez.com 

OEZ s.r.o. 

Trade Office Prague 

Podnikatelská 547 

190 11 Prague 9 


tel.: +420 257 181 710 

fax: +420 235 315 026 

e-mail: oeztrade@oez.cz 

www.oez.com 

OEZ Slovakia, spol. s r.o. 

Rybničná 36c 

831 07 Bratislava 

Slovakia 

tel.: +421 2 44 87 27 66-9 

fax: +421 2 44 87 27 70 

e-mail: info@oez.sk 

www.oez.sk 

OEZ Deutschland GmbH 

Hagenower Strasse 73 

190 61 Schwerin 

Germany 

tel.: +49 385 39 93 305 

fax: +49 385 39 93 307 

e-mail: info@oez-deutschland.de 

www.oez-deutschland.de 

OOO “OEZ-R“ 

3. Tverskaya-Yamskaya 36/40 

125047 Moscow 

Russian Federation 

tel.: +7 499 978 26 45 

fax: +7 495 783 66 96 

e-mail: sales@oez.ru 

www.oez.ru 

OEZ Polska Sp. z o.o. 

Czereśniowa 19 

02-457 Warszawa 

Poland 

tel.: +48 22 863 15 21 

fax: +48 22 863 71 82 

e-mail: info@oez.pl 

www.oez.pl 

DP ”OEZ Ukraine” 

Vasilkovskaya 34, of. A-208 

03022 Kiev 

Ukraine 

tel./fax: +38 044 455 71 62/63/64/65 

e-mail: ukr@oez.cz 

www.oez.cz

VJ1-2007-A 

WWW.OEZ.COM 

Any changes reserved

Appendix of the catalogue 

Air circuit breakers Arion WL (VJ1-2007-A) 

by new design of Arion WL11 

Arion 

Air circuit breakers

www.oez.com

Arion 


DATA FOR SELECTION OF CIRCUIT BREAKER AND SWITCH-DISCONNECTOR .........................................................2 

DATA FOR SELECTION OF OVERCURRENT RELEASE .....................................................................................................3 

MEANING OF TYPE DESIGNATION POSITIONS ..............................................................................................................4 

QUICK COMPOSITION OF TYPE DESIGNATION ...............................................................................................................5 

COMPOSITION OF TYPE DESIGNATION 3-pole circuit breakers, switch-disconnectors for AC operation 

Fixed design ..................................................................................................................................................................6 

Withdrawable design ....................................................................................................................................................7 

COMPOSITION OF TYPE DESIGNATION 4-pole circuit breakers, switch-disconnectors for AC operation 

Fixed design ..................................................................................................................................................................8 

Withdrawable design ....................................................................................................................................................9 

BASIC ACCESSORIES - drives, auxiliary releases and switches ............................................................................10 


AIR CIRCUIT BREAKERS, SWITCH-DISCONNECTORS 

- specifications ............................................................................................................................................................11 

- connection ................................................................................................................................................................13 

- dimensions ...............................................................................................................................................................14 

GLOSSARY ................................................................................................................................................................................17 

1

Arion 

Commercial information 

DATA FOR SELECTION OF CIRCUIT BREAKERS 


Size 

I 


630 A 

800 A 

1000 A 


1600 A 

2000 A 


690 V a.c. 


50/60 Hz 



I cu 

N - 55 kA/415 V a.c. 

S - 66 kA/415 V a.c. 

H - 85 kA/415 V a.c. 


N - 42 kA /1 s 

S - 50 kA/1 s 

H - 66 kA/1 s 



S - 145 kA/415 V a.c. 

H - 187 kA/415 V a.c. 


Max. rated current of the circuit breaker 

I n 

[A] 



I cu 

at 415 V [kA] a.c. 

fi x e d 

3/4 pole 

Dimensions 

withdrawable 

3/4 pole 

630 

291 / 291 

385 / 385 

depth 

800 

Size I 

1000 


1600 

N S H 

55 66 85 

440.5 / 440.5 

320 / 410 

468.5 / 468.5 

320 / 410 

height 

width 

2000 

NEWS 

NEWS 

DATA FOR SELECTION OF SWITCH-DISCONNECTOR 


Size 

I 


630 A 

800 A 

1000 A 


1600 A 

2000 A 


690 V a.c. 


50/60 Hz 



S - 145 kA/415 V a.c. 

H - 187 kA/415 V a.c. 


N - 42 kA/1 s 

S - 50 kA/1 s 

H - 66 kA/1 s 


2


Arion 

DATA FOR SELECTION OF OVERCURRENT RELEASE 

Rating Plug 

I R 

I sd 

t sd 

Overcurrent release name ETU15B ETU25B ETU27B ETU45B ETU76B 

Overload protection L + + + + + 

Short-time delayed short-circuit protection S – + + + + 

Instantaneous short-circuit protection I + + + + + 

Neutral conductor protection N – – + + + 

Earth fault protection G – – + • • 

Additional functions + 

Neutral conductor protection ON/OFF – – +/+ +/+ +/+ 

Short-time delayed short-circuit protection ON/OFF – – – +/+ +/+ 

Instantaneous short-circuit protection ON/OFF – – – +/+ +/+ 

Thermal memory ON/OFF – – – + + 

Load guarding – – – + + 

Short-time delayed short-circuit protection 

switchable to I 2 t 

– – – + + 

Instantaneous short-circuit protection adjustable + – – + + 

Overload protection switchable to I 4 t – – – + + 

Overload protection ON/OFF – – – – + 

Adjustable neutral conductor protection N – – – + + 

Switchable parameter sets – – – – + 

Parameterization and display 

Parameterization by rotary switches (10 positions) + + + + – 

Parameterization by means of communication 

(absolute values) 

– – – – + 

Parameterization by means of menu (absolute values) – – – – + 

Remote parameterization of basic functions – – – – + 

Remote parameterization of additional functions – – – + + 

4-line LCD – – – • – 

Graphic LCD – – – – + 


Measuring function Plus – – – • • 

Communication 

CubicleBUS – – – + + 

PROFIBUS-DP/MODBUS – – – • • 

Ethernet – – – • • 

+ YES, – NO, • Optional 

3

Arion 


MEANING OF TYPE DESIGNATION POSITIONS 

Example of type designation: ARION WL1120-3CB36-4GA2-Z K07 

Position number: 5 6 - 7 8 9 - 10 11 12 13 14 15 16 

Type designation: ARION WL1 1 20 - 3 CB 3 6 - 4 G A 2 - Z K07 

Size 

Rated current 



Number of poles 

Design and type of connection 

Drive 




Accessories (it is possible to fill in more codes at a time separated by plus sign) 

ARION WL1120-3CB36-4GA2-Z K07 

Parameters and description of circuit breaker according to positions: 

5) size I 

6 - 7) rated current I n 

= 2000 A 

8) rated short-circuit ultimate breaking capacity I cu 

= 80 kA 

9 - 10) overcurrent release ETU25B 

11) 3-pole design 

12) withdrawable design, rear horizontal connection 

13) hand and motor drive with closing release for 230 V a.c./220 V d.c. 

14) shunt trip 230 V a.c./220 V d.c. 

15) without 2nd auxiliary release 

16) 2NO + 2NC auxiliary contacts 

Accessory code - signal switch „switched off by overcurrent release“ - K07 

STANDARD EQUIPMENT OF CIRCUIT BREAKER/SWITCH-DISCONNECTOR 

Each circuit breaker/switch-disconnector has the following standard equipment 

Fixed design 

• Push-button for mechanical ON 

• Push-button for mechanical OFF 

• Hand drive with storage device 

• Mechanical indicator of circuit breaker state - ON/OFF state 

• Mechanical storage device state - wound up/released 

• Mechanical indicator „ready-to-close“ 

• Auxiliary switches - 2NO + 2NC contacts 

• Terminal blocks and connectors for connection of auxiliary circuits - 

the circuit breaker/switch-disconnector is always equipped with all necessary 

terminal blocks and connectors; terminal block has screw terminals 

• Mechanical indicator of switching off by overcurrent release 

• Mechanical interlocking of reset after switching off by overcurrent release 

Withdrawable design - withdrawable design contains additionally: 

• Mechanical indicator of the circuit breaker position in the 

withdrawable device 

• Locking device against shifting of circuit breaker using a padlock 

4


Arion 

QUICK COMPOSITION OF TYPE DESIGNATION 

The table can be used for quick and simple selection and composition of type designation of a circuit breaker/switch-disconnector ARION WL. 

The table contains only common types of circuit breakers/switch-disconnectors. For complete offer, use the catalogue. 

Type designation ARION WL1 1 20 - 3 CB 3 6 - 4 G A 2 - Z K07 

Size 

size I from 630 to 2000 A 1 

size II from 800 to 3200 A 2 

size III from 4000 to 6300 A 3 

Rated current 




1250 A recommended size I 12 











N – ECO 55 kA for size I, 66 kA for size II 2 

S – STANDARD 80 kA for size II, 66 kA for size I 3 

H – HIGH 85 kA for size I, 100 kA for size II and size III 4 

C – EXTRA 150 kA for size III (3-pole), 130 kA for size III (4-pole) 5 


without overcurrent release Switch-disconnector AA 

ETU25B Circuit breaker CB 

ETU45B - without display Circuit breaker EB 

ETU45B - with display Circuit breaker FB 

ETU76B - with graphic display Circuit breaker NB 

Design 

3 – pole 3 

4 – pole 4 

Design 

fixed rear vertical connection 1 

fixed rear horizontal connection 2 

fixed front connection 4 

withdrawable rear horizontal connection 6 

withdrawable rear vertical connection 7 

Drive 

hand drive 1 

hand and motor drive, closing release 230 V a.c./220 V d.c. 4 

hand and motor drive, closing release 110 V a.c./d.c. 5 

hand and motor drive, closing release 24 V d.c. 6 


without 1st auxiliary release A 

shunt trip 24 V d.c. B 

shunt trip 110 V a.c./d.c. F 

shunt trip 230 V a.c./220 V d.c. G 


without 2nd auxiliary release A 

shunt trip 24 V d.c. B 

shunt trip 110 V a.c./d.c. F 

shunt trip 230 V a.c./220 V d.c. G 

undervoltage release 24 V d.c. J 

undervoltage release 110 V a.c./d.c. M 

undervoltage release 230 V a.c./220 V d.c. N 


2 NO + 2 NC 2 

4 NO + 4 NC 4 

Accessories (it is possible to fill in more codes at a time separated by plus sign) 

Electrical ON push-button on the front panel C11 

Signal switch of the storage device state C20 

Signal switch „ready-to-close” C22 

Signal switch „switched off by release“ K07 

Position signal switches in the withdrawable device R15 

Door sealing frame T40 

Locking device against unauthorized closing on the front control panel S01 

• Example of type designation: ARION WL1120-3CB36-4GA2-Z K07 

5

Arion 



3P 


Rear horizontal connections 


n 


/415 V 

[A] 

55 kA – size I 66 kA – size I 85 kA – size I 

N S H 

630 ARION WL1106-232- ARION WL1106-332- ARION WL1106-432- 



1250 ARION WL1112-232- ARION WL1112-332- ARION WL1112-432- 


2000 ARION WL1120-232- ARION WL1120-332- ARION WL1120-432- 

 

Rear vertical connections 







 

Front connections one series of holes 

630 ARION WL1106-233- ARION WL1106-333- - 



1250 ARION WL1112-233- ARION WL1112-333- - 


2000 - - - 

 

Front connections two series of holes 







 


Overcurrent release - without earth fault protection (circuit breaker) 

Overcurrent release ETU15B – protective function LI 



Overcurrent release ETU45B – protective function LSIN, with display, number of lines 4 3) 


Overcurrent release - with earth fault protection (circuit breaker) 



Overcurrent release ETU45B – protective function LSING, with display, number of lines 4 3) 

Overcurrent release ETU76B – protective functionLSING, graphic display 3) 

AA 

BB 

CB 

EB 

FB 

NB 

DG 

EG 

FG 

NG 

1AA2 



Auxiliary switches: contacts 2200 (2NO + 2NC) 


1) 

Rated current is determined by the rated current module (rating plug). The module delivered with standard version corresponds to the maximum rated current of the circuit breaker. 

If a smaller rated current is required, its change is possible, see page 31 in the catalogue Air circuit breakers Arion VJ1-2007-A. 

2) 



of a switch-disconnector see page 12 (only for AC applications). 

3) 

Measuring current transformers for vectorial addition or protection of N conductor shall be ordered separately, see page 40 in the catalogue Air circuit breakers Arion VJ1-2007-A. 

• For weight see page. 12 

6


Arion 


3P 




n 


/415 V 

[A] 


N S H 







 















 

Rear flanged connections 







 







Overcurrent release ETU76B – protective function LSIN, grafický displej 3) 






AA 

BB 

CB 

EB 

FB 

NB 

DG 

EG 

FG 

NG 

1AA2 





1) 



2) 




3) 

Measuring current transformers for vectorial addition or protection of N conductor shall be ordered separately, see page 40 in the catalogue Air circuit breakers Arion VJ1-2007-A. 

• For weight see page 12 

7

Arion 



4P 




n 


/415 V 

[A] 


N S H 







 







2000 ARION WL1220-241- ARION WL1220-341- ARION WL1220-441- 

 

Front connections one series of holes 




1250 ARION WL1112-243- ARION WL1112-343- - 


2000 - - - 

 

Front connections two series of holes 






2000 ARION WL1220-244- ARION WL1220-344- ARION WL1220-444- 

 













AA 

BB 

CB 

EB 

FB 

NB 

DG 

EG 

FG 

NG 

1AA2 





1) 



2) 




3) 

Internal measuring current transformer for protection of N conductor can be ordered with „F23“ code, see page 32 in the catalogue Air circuit breakers Arion VJ1-2007-A. 

• For weight see page. 12 

8


Arion 


4P 




n 


/415 V 

[A] 


N S H 







 















 

Rear flanged connections 







 













AA 

BB 

CB 

EB 

FB 

NB 

DG 

EG 

FG 

NG 

1AA2 





1) 



2) 




3) 

Internal measuring current transformer for protection of N conductor can be ordered with „F23“ code, see page 32 in the catalogue Air circuit breakers Arion VJ1-2007-A. 

• For weight see page 12 

9

Arion 


BASIC ACCESSORIES 3P 4P 

Selected type designation ARION WL1-- 

Hand drives with mechanical closing 1 

Hand drives with electrical closing – closing release: load factor 100 % 

110 V a.c./110 V d.c. 2 

230 V a.c./220 V d.c. 3 

Motor and hand drives with electrical closing – closing release: load factor 100 % - for permanent load 

230 V a.c./220 V d.c. 4 

110 V a.c./d.c. 5 

24 V d.c. 6 

- different operating voltages for motor drive and closing release 


Without 1st auxiliary release 

A 

Shunt trips – load factor 100 % - for permanent load 

24 V d.c. B 

30 V d.c. C 

48 V d.c. D 

60 V d.c. E 

110 V a.c./d.c. F 

230 V a.c./220 V d.c. G 


Without 2nd auxiliary release 

A 

Shunt trips – load factor 100 % - for permanent load 

24 V d.c. B 

30 V d.c. C 

48 V d.c. D 

60 V d.c. E 

110 V a.c./d.c. F 

230 V a.c./220 V d.c. G 

Undervoltage releases – short-time delayed 80 or 200 ms 

24 V d.c. J 

30 V d.c. K 

48 V d.c. L 

60 V d.c. U 

110 V a.c./d.c. M 

230 V a.c./220 V d.c. N 

400 V a.c. P 

Undervoltage releases – delayed 0.2 ÷ 3.2 s 

48 V d.c. Q 

110 V a.c./d.c. R 

230 V a.c./220 V d.c. S 

400 V a.c. T 


2NO + 2NC 2 

4NO + 4NC 4 

6NO + 2NC 7 

5NO + 3NC 8 

10

Technical information 

Arion 


Specifications 

Type 

ARION WL11... 

Size 

I 


IEC 60947-2 

DIN VDE 0660 section 101 

Approval marks 

Size I 



630 A 

800 A 

1000 A 


1600 A 

2000 A 


690 V a.c. 


50/60 Hz 

Rated pulse voltage - main current path U imp 

12 kV 

- auxiliary circuits 4 kV 

- control circuits 2.5 kV 


1000 V 

Utilization category (selectivity) 

B 


See the table on page 12 



Rated short-circuit service breaking capacity I cs 

100% I cu 



Switching off time at I cu 

50 ms 1) 

Mechanical switching on time 

35 ms 

Mechanical switching off time 

38 ms 

Switching off time by shunt trip 

73 ms 

Switching off time by undervoltage release 

73 ms 

Switching on time by closing release 

80 ms 



Mechanical endurance 

- without maintenance 10 000 cycles 

(for I cu 

55, 66 kA/415 V a.c.) 

- with maintenance 3) 20 000 cycles (up to 1600 A), 15 000 cycles (2000 A) 

Electrical endurance 

- without maintenance (U e 

= 1000 V) 10 000 cycles (up to 1600 A), 7 500 cycles (2000 A) 

(for I cu 

55, 66 kA/415 V a.c.) 

- with maintenance 3) 20 000 cycles (up to 1600 A), 15 000 cycles (2000 A) 

Mechanical endurance 


(for I cu 

85 kA/415 V a.c.) 

- with maintenance 3) 15 000 cycles 

Electrical endurance 


(for I cu 

85 kA/415 V a.c.) 

- with maintenance 3) 15 000 cycles (3P), 10 000 cycles (4P) 


= 690 V a.c. (1000 V a.c.) 60 cycles/h 

Minimum dwell between circuit breaker switching off 

80 ms 2) 

by overcurrent release and subsequent reclosing 



Reference ambient temperature 40 °C 

Ambient temperature range operation -25 °C ÷ +70 °C 

(it is necessary to observe special conditions for LCD) storage -40 °C ÷ +70 °C 

Sea level 

2000 m 

Climatic resistance IEC 68 section 30-20 

Weight m See the table on page 12 

1) 

- with ETU15B switching off time is 85 ms 

2) 

- only with automatic reset of reclosing blocking 

- circuit breakers of size I with I cu 

= H can operate in IT networks up to 690 a.c. 

3) 


11

Arion 



Parameters 


1) 

Size - Type 

I – ARION WL11… 

Designation of breaking capacity N S H 

0,5 s 50 kA 66 kA 75 

1 s 42 kA 50 kA 66 

2 s 29.5 kA 35 kA 46 

3 s 24 kA 29 kA 37 

1) 

- at reverse connection the values do not change (input terminals 2, 4, 6, output terminals 1, 3, 5) 


1) 

Size - Type 



415 V a.c., 500 V a.c. 55 kA 66 kA 85 kA 

690 V a.c. 42 kA 50 kA 66 kA 

1) 


Rated short-circuit ultimate making capacity I cm 

1) 

Size - Type 



415 V a.c., 500 V a.c. 121 kA 145 kA 187 kA 

690 V a.c. 88 kA 105 kA 145 kA 

1) 


Rated conditional short-circuit current I 1) 

cc 

Size - Type 



500 V a.c. 55 kA 66 kA 75 kA 

690 V a.c. 42 kA 50 kA 66 kA 

1) 


Losses at I n 

- per 3 pole 

Type Fixed design Withdrawable design 

ARION WL1106… 100 W 195 W 

ARION WL1108… 100 W 195 W 

ARION WL1110… 100 W 195 W 

ARION WL1112… 105 W 205 W 

ARION WL1116… 150 W 350 W 

ARION WL1120… 240 W 440 W 

Weight 

Type 3-pole 4-pole 

Fixed design 



Fixed design 



ARION WL1106… 43 kg 45 + 25 = 70 kg 50 kg 54 + 30 = 84 kg 



ARION WL1112… 43 kg 45 + 25 = 70 kg 50 kg 54 + 30 = 84 kg 


ARION WL1120… 43 kg 45 + 25 = 70 kg 50 kg 54 + 30 = 84 kg 

Maximum load of the circuit breaker/switch-disconnector depending on ambient temperature 

Type 55 °C 60 °C 70 °C 

ARION WL1106… 630 A 630 A 630 A 

ARION WL1108… 800 A 800 A 800 A 

ARION WL1110… 1000 A 1000 A 1000 A 

ARION WL1112… 1250 A 1250 A 1210 A 

ARION WL1116… 1600 A 1600 A 1490 A 

ARION WL1120… 2000 A 1930 A 1780 A 

12


Arion 



Recommended dimensions of main connections 

and min. cross-sections 

Type 

Dimensions 

Cu busbars [mm] 

Min. cross-section [mm 2 ] 

ARION WL1106... 1x 60 x 10 600 

ARION WL1108... 1x 60 x 10 600 

ARION WL1110... 1x 60 x 10 600 

ARION WL1112... 2x 40x10 800 

ARION WL1116... 2x 50 x 10 1000 

ARION WL1120... 3x 50x10 1500 

Main (power) circuit 

- is connected by Cu busbars 

- to extend connection options, use connecting sets see „types of main connections“ 

- reverse connection is possible (inversion of input and output terminals) without limitation 

of rated ultimate short-circuit breaking capacity I cu 

- we recommend to coat the busbars with paint 

- input and output conductors/busbars must be reinforced mechanically to eliminace transfer 

of electrodynamic forces into circuit breaker/switch-disconnector at short-circuits see fig. 






Types of main connections 

Fixed design 

 

 

 

 


Front connection one series 

of holes - custom delivery 


of holes 



 

 

 

 

 


Front connection one series 

of holes - custom delivery 


of holes 



- custom delivery 

13

Arion 



Dimensions - size I - fixed design 


5) 4) 

 

 

 

 

60.5 

 

33.5 

13.5 

437.5 437,5 

NSE00611 

275 

440.5 440,5 


270 15 

300 10 

390 

541.5 

461.5 

 

 

 

 

5.5 

 

 

 

 

 

 

 

5) 4) 

 

270 15 

300 10 

390 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NSE00619 

b 

 

327.5 


13.5 

437.5 437,5 

NSE00611 

275 

440.5 440,5 



5) 4) 

13.5 

437.5 437,5 

275 

440.5 440,5 


NSE00611 

270 15 

300 10 

390 


5) 4) 

437.5 437,5 

275 

440.5 440,5 


267.5 


 

3) 

NSE00611 

270 15 

300 10 

390 

13.5 

 

113.5 


60 90 90 90 

4-pole design 


2) Deionization space, space for connection of auxiliary circuits. 



6) Dimension to internal surface of closed switchboard door. 


8) Locking device against unauthorized closing, on the front control panel. 

9) Locking device against mechanical ON/OFF. 



up to 1000 A 10 10 10 


14


Arion 




320 

270 

5) 

4) 

NSE00621 

 

 

 

 

NSE00630 

10) 

13 

210 

300 

30 

55 


468,5 468.5 

 

 

 

 

 

 

367.5 

382.5 

327.5 

 

 

88.5 


140.5 

3) 

10) 

55 

15 

90 90 90 

10) 

13.5 


320 

270 

5) 

4) 

NSE00621 

62.5 

 

13.5 

10) 

13 

210 

300 

30 

55 


468.5 468,5 

 

 

 

169.5 


320 

270 

5) 

4) 

NSE00621 

62.5 

 

13.5 


468.5 468,5 

 

 

 

10) 

13 

210 

300 

30 

55 

 

169.5 

4-pole design 










up to 1000 A 10 10 10 


15

Arion 





320 

270 

5) 

4) 

NSE00621 

 

13.5 

 

NSE00629 

b 

 

10) 

13 

210 

300 

30 

55 


468.5 468,5 

267.5 


 

 

 

 

3) 

15 90 90 90 


320 

270 

5) 

4) 

NSE00621 


468.5 468,5 

 

NSE00631 


282,5 282.5 

26 33 

3) 

142.5 142,5 

55 55 55 55 

59 59 

10) 

13 

210 

300 

30 

55 


NSE00632 

15 90 90 90 

4-pole design 










up to 1000 A 10 10 10 


16


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GLOSSARY 


Title Symbol Explanation 


EN 60947-1; 4.3.1.1 

U e 

Voltage fixed by the manufacturer. Several pertinent tests relate to its determination, as may also the utilization 

category. Along with the rated (operating) current, it determines the device’s utilization. The highest value of 

rated operating voltage may in no case be greater than the value of the rate insulation voltage U i 

. 

Rated insulation voltage 

EN 60947-1; 4.3.1.2 

Rated current 

EN 60947-2; 4.3.2.3 

U i 

I n 

Voltage measure to which are related tests of dielectric strength and creepage distance. 

Current value of particular circuit breaker that can be handled uninterruptedly. The highest current valued 

tripping the circuit breaker in conformity with a specifically stated tripping characteristic. 

Reduced rated current I R 

Specifically established, reduced value of I n 

current for a regulated time-dependent (thermal) release, and 

that the circuit breaker can handle continuously. Maximum setting is at value equal to I n 

. Changing I r 

shifts the 

release’s tripping characteristic along the current axis. I r 

= k x I n 

holds where k ≤ 1 

Tripping time at a given I r 

multiple t R 

Time after which circuit breaker will trip, if a current flows through it that is equal to the given multiple of I r 

. 

Changing t r 

shifts the tripping characteristic along the time axis. 

Release current of independent time-delayed 

(selective) release 

I sd 

Minimum current value causing the release’s time-independent delay to actuate. 

Delay of time-independent delayed release t sd 

If a current flows through the circuit breaker equal to at least I rmv 

but not reaching I rm 

the circuit breaker will trip 

with time delay t v 

. Total switching off time is influenced by the tripping of the circuit breaker itself and is about 

10 ÷ 20 ms longer. 

Release current of independent instantaneous 

(short-circuit) release 

Rated operating current 

EN 60947-1; 4.3.2.3 

Rated normal current 

EN 60947-1; 4.3.2.4 


EN 60947-2; 2.15.1; 4.3.5.2.1 

Rated short-circuit service breaking capacity 

EN 60947-2; 2.15.2; 4.3.5.2.2 

Rated short-time withstand current 

EN 60947-1; 4.3.6.1 

EN 60947-2; 4.3.5.4 

EN 60947-3; 4.3.6.1 

Rated conditional short-circuit current 

EN 60947-1; 4.3.6.4 

EN 60947-2; Supplement L; L.4.2 

I i 

I e 

I u 

I cu 

I cs 

I cw 

I cc 

Minimum current value causing the time-independent instantaneous release to actuate. 

Rated operating current of device (switch-disconnector) is fixed by the manufacturer with consideration for the 

rated operating voltage, rated frequency, rated operation, utilization category and type of protective cover, if that 

comes into consideration. 

Current value set by the manufacturer, and which the device can handle in continuous operation, 

i.e. during a period longer than 8 hours (weeks, months, or longer). 

Ultimate short-circuit breaking capacity value expressed as the RMS value of the alternating component of the 

assumed short-circuit current, that the circuit breaker must be able to manage in the mode: 1x switching off of 

the short-circuit and a following 1x make-break sequence. After testing, the circuit breaker need not be able to 

conduct the rated current uninterruptedly. I cu 

is set for the rated operating voltage at the rated frequency and 

at the established power factor for alternating current or at the time constant for direct current. Must fulfil the 

condition: I cu 

≥ I k 

“ 

Value of the operating short-circuit breaking capacity expressed as the rms value of the alternating component of 

the assumed short-circuit current, that the circuit breaker must be able to manage in the mode: 1x switching off 

of the short-circuit and a following 2x make-break sequence. May also be expressed as a percentage of I cu 

. 

After testing, the circuit breaker must be able uninterruptedly to conduct the rated current and to switch off the 

overcurrent. Temperature increase of the main terminals may be greater. I cs 

is set for the rated operating voltage 

at the rated frequency and at the established power factor for alternating current or at the time constant for 

direct current. Permitted: I cs 

≥ I k 

“ 

Value of short-time withstand current specified by the manufacturer, that the device is able to handle without 

damage during a designated time period (short-time delay). In case of alternating current, it is the rms value of 

the alternating component of the assumed short-circuit current I p 

. 

The prospective short-circuit value given by the producer that can be transferred by the device, protected against 

short-circuit by protective device, within its operation. 

Must fulfil the condition: I cc 

≥ I k 

“ 

17

Arion 


GLOSSARY 


Title Symbol Explanation 

Rated short-circuit making capacity 

EN 60947-1; 4.3.6.2 

EN 60947-2; 4.3.5.1 

EN 60947-3; 4.3.6.2 

I cm 

Value of short-circuit making capacity specified by the manufacturer for the rated operating voltage at the rated 

frequency and at the established power factor for alternating current or at the time constant for direct current. 

It is expressed as the maximum assumed peak current. 

Must fulfil the condition: I cm 

≥ i p 

Initial peak short-circuit current 

EN 60909-0; 1.3.5 

Surge short-circuit current 

EN 60909-0; 1.3.8 

Prospective short-circuit current 

EN 60947-1; 2.5.5 

EN 60909-0; 1.3.3 

Rated impulse withstand voltage 

EN 60947-1; 4.3.1.3 

Overvoltage category 

EN 60947-1; 2.5.60 

Rated frequency 

EN 60947-1; 4.3.3 


(circuit breakers – time selectivity) 

EN 60947-2; 4.4 


(switch-disconnectors – switching mode) 

EN 60947-3; 4.4 

Pollution degree 

EN 60947-1; 2.5.58; 6.1.3.2 

“ 

I k 

i p 

I p 

U imp 

f n 

Short-circuit current value at the moment of its arising at a given point in the electrical distribution expressed as 

the RMS value of the alternating symmetrical component of the assumed short-circuit current. 

Maximum possible momentary value of the assumed short-circuit current. (Corresponds to the moment the short 

arises, as a result of which there occurs the peak value of the short-circuit current.) 

Short-circuit current value, which would flow through the circuit if the protection device were replaced and 

a short-circuit were experienced by conductors with negligible impedance (In a three-phase distribution, it is 

assumed that the short-circuit is simultaneous in all phases.) 

Peak value of the voltage impulse of the prescribed form and polarity, which the device is able to withstand 

without failure at the established conditions and pertinent to which is the value of the separating air distance. 

U imp 

of the device must be equal to or higher than the value established for momentary overvoltage at the point 

in the circuit (overvoltage category) where the device is used. 

Numerically defined level of momentary overvoltage, i.e. overvoltage having its origin in atmospheric or 

switching. Standard EN 60664-1 establishes for electrical equipment the overvoltage categories: 

Overvoltage category IV 

- wiring entrance, outside lead 

Overvoltage category III 

- fixed wiring 

Overvoltage category II 

- appliances 

Overvoltage category I 

- light-current appliances 

Frequency of the supply network for which the device is proposed and that corresponds to its other characteristics 

values. 

Utilization category of circuit breaker establishes whether or not the circuit breaker specifically is intended 

for providing selectivity by means of intentional time delay (time selectivity) with other protective devices 

connected in series on the load side in short-circuiting conditions. 


A - circuit breakers are not specifically intended for providing time selectivity 

B - circuit breakers are specifically intended for providing time selectivity 

Utilization category defined the assumed use of switch devices (switch-disconnectors). 

Characterized by values of current and voltage, expressed as multiples of rated operating current and rated 

operating voltage, and further by power factors or time constants of the circuit. 


AC-21B (DC-21B) - infrequent switching of resistive loads, including moderate overloading 

AC-22B (DC-21B) - infrequent switching of mixed resistive and inductive loads, including moderate overloading 

AC-23B (DC-23B) - infrequent switching of motor loads or other highly inductive loads 

Pollution degree relates to the conditions of the surrounding environment for which the device is intended. 

Pollution degree: 

1 - No contamination will occur, or only dry, non-conducting contamination. 

2 - Normally occurs only non-conducting contamination, but sometimes there may occur temporary conductibility 

due to condensation. 

3 - There occurs conductive contamination or dry non-conducting contamination that with the effect of condensation 

will become conductive. 

4 - Contamination generates continuous conductibility, by means of, for example, conductive dust, rain or snow. 

18

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NOTES 

19

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NOTES 

20

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+420 465 672 101 

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+420 465 672 151 

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www.oez.com

www.oez.com 

VJ1-2011-A 

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2197-Z03/12

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