circuit breakers, switch-disconnectors

MOULDED CASE CIRCUIT BREAKERS BD250N, BD250S 

E

BD250N, BD250S 

COMMERCIAL INFORMATION 

Switching units, plug-in device, withdrawable device ........................................................................................E4 

3P 

4P 

Overcurrent releases, switch-disconnector unit ......................................................................................................E6 

Connecting sets ..........................................................................................................................................................................E7 

Mounting sets ..............................................................................................................................................................................E9 

Switches ........................................................................................................................................................................................E10 

Shunt trips ...................................................................................................................................................................................E10 

Undervoltage releases .........................................................................................................................................................E10 

Hand drives .................................................................................................................................................................................E11 

Mechanical interlocking and parallel switching ....................................................................................................E12 

Motor drives ...............................................................................................................................................................................E12 

Accessories ...................................................................................................................................................................................E13 

Purchase order example ......................................................................................................................................................E14 

Custom assembly of circuit breakers..................................................................................................E14 

TECHNICAL INFORMATION 

Circuit breakers, switch-disconnectors 

- specifications ......................................................................................................................................E15 

- diagram ..............................................................................................................................................E16 

- connecting, installation .......................................................................................................................E18 

- deionization space ...............................................................................................................................E23 

- dimensions ..........................................................................................................................................E24 

Plug-in device 

- description, specifications, diagram ....................................................................................................E50 

Withdrawable device 


Overcurrent releases 

General information .....................................................................................................................E54 

L001 - lines 

- description, specifications, tripping characteristics ...........................................................................E56 

DTV3 - distribution 


MTV8 - motor 


MTV9 - motor with adjustable timing selectivity 


4D01 - distribution with N-pole protection 


Connecting sets - specifications ......................................................................................................................................E19 

Switches 

- specifications, diagram .......................................................................................................................E63 

Shunt trips 


Undervoltage releases 


Hand drives 

- description, specifications ...................................................................................................................E66 

Mechanical interlocking and parallel switching 

- description, specifications, dimensions ...............................................................................................E67 

Motor drives 


E2


SUMMARY OF MODELS AND ACCESSORIES 

3P 

4P 

CONNECTING SETS 

Double block terminals 

Block terminals 

Potential terminals 

Clamp terminals 



Rear connection 

Front connection 

CS-BD-T011 

CS-BD-B011 

CS-BD-B012 

CS-BD-B021, CS-BD-B022 

CS-BD-B014 

CS-BD-A021 

CS-BD-A011 

CS-BD-PS01 

HAND DRIVES 

RP-BD-CK.. 

RP-BHD-CP.. 

SWITCHING UNIT 

BD250SE305 

BD250NE305 

PLUG-IN DEVICE 

ZO-BD-0250-300 

WITHDRAWABLE DEVICE 

ZV-BD-0250-300 

RP-BHD-CN.. 

RP-BHD-CH.. 

Mechanical parallel switching 

RP-BHD-CD10 

Mechanical interlocking 

RP-BHD-CB10 

Mechanical interlocking with Bowden 

MB-BD-PV05 

MB-BHD-PV03 

MOTOR DRIVES 

OD-BHD-KA02 

MP-BD-X… 

OD-BHD-PP01 

SWITCHES PS-BHD-… 

Single Double Change-over Early 

UNDERVOLTAGE RELEASE 

SV-BHD-X… 

PODPĚŤOVÁ SPOUŠŤ 

SP-BHD-X… 

OVERCURRENT RELEASES 

SE-BD-....-L001 

SE-BD-....-DTV3 

SWITCH-DISCONNECTOR UNIT 

SE-BD-0250-V001 

ACCESSORIES 

TO ZO... and ZV... 

Connecting cable 

OD-BHD-KA01 

Position signalling 

SO-BHD-0010 

SE-BD-....-MTV8 

SE-BD-....-MTV9 

SE-BD-....-4DO1 

ACCESSORIES 

Lockable lever 

Sealing inset 

Additional cover 

for overcurrent releases 

Terminal cover 

Insulating barriers 

Keying pins 

OD-BD-KK01 

OD-BD-UP01 

OD-BD-VP01 

OD-BD-VP02 

OD-BD-KS03 

OD-BHD-KS02 

E3

BD250N, BD250S - Commercial information 

SWITCHING UNITS 

3P 

Type Product code I u 

[A] I cu 

[kA] Weight [kg] Package [pc] 

BD250NE305 14414 250 36 2.84 1 

BD250SE305 14415 250 65 2.84 1 

- TECHNICAL INFORMATION, see page E15 

- The way of connecting the power circuit must observe recommendations (see page E18) as well as deionization space (see page E23) 

- Switching unit: includes - 2x connecting sets CS-BD-A011 - for connecting busbars or cable lugs 1) 

- insulating barriers OD-BHD-KS02 

- installation bolts OD-BD-MS01 (4 x M4x35) 

- conductor holder OD-BD-DV01 

must be fitted with - overcurrent release SE-BD-… (circuit breaker) 

or switch-disconnector unit SE-BD-0250-V001 (switch-disconnector) 

1) 

- For connecting in another way, it is necessary to use CS-BD-... (see page E7). 


3P 

Type Product code Name Weight [kg] Package [pc] 

ZO-BD-0250-300 14558 Plug-in device 1.593 1 


- Plug-in device: includes - complete accessories for assembly 

circuit breakers/switch-disconnectors in plug-in design 

- set of installation bolts OD-BD-MS02 (4 x M4x40) - for 

affixing switching unit to plug-in device 

must be fitted with - switching unit BD250..305 


- For connecting plug-in device with busbars or cable lugs, connecting sets CS-BD-A011 can be used that are included with the 

BD250..305 switching unit. For connecting in another way, it is necessary to use CS-BD-... connecting sets (see page E7). 

3P 

Type Product code Name Weight [kg] Package [pc] 

ZV-BD-0250-300 14557 Withdrawable device 2.692 1 


- Withdrawable device: includes - complete accessories for assembly 

circuit breakers/switch-disconnectors in withdrawable design 

must be fitted with - switching unit BD250..305 

- For connecting withdrawable device with busbars or cable lugs, connecting sets CS-BD-A011 can be used that are included with 

the BD250..305 switching unit. For connecting in another way, it is necessary to use CS-BD-... connecting sets (see page E7). 

E4


SWITCHING UNITS 

4P 

Type Product code I u 

[A] I cu 

[kA] Weight [kg] Packing [pc] 

BD250NE405 19571 250 36 3P + N - N-conductor switching 3.7 1 

BD250SE405 19573 250 65 3P + N - N-conductor switching 3.7 1 

BD250NE406 19572 250 36 4P - N-conductor protection 3.9 1 

BD250SE406 19574 250 65 4P - N-conductor protection 3.9 1 


- The way of connecting the power circuit must observe recommendations (see page E19) as well as deionization space (see page E23) 

- Switching unit: includes - 2 connecting sets - for connecting busbars or cable lugs 1) 

- insulating barriers 

- set of installation bolts OD-BD-MS01 (4 x M4x35) 

- conductor holder OD-BD-DV01 

must be fitted with - overcurrent release SE-BD-… (circuit breaker) 

or switch-disconnector unit SE-BD-0250-V001 (switch-disconnector) 

1) 

- For connecting in another way, it is necessary to use CS-BD-... connecting sets (see page E7). 


4P 

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

ZO-BD-0250-400 20651 Plug-in device 2.1 1 


- Plug-in device: includes - complete accessories for assembly 

circuit breakers/switch-disconnectors in plug-in design 

- set of installation bolts OD-BD-MS02 (4 x M4x40) - for 

affixing switching unit to plug-in device 

must be fitted with - switching unit BD250..405 or BD250..406 


- For connecting plug-in device with busbars or cable lugs, connecting sets can be used that are included with the 

BD250..40... switching unit. For connecting in another way, it is necessary to use CS-BD-... connecting sets (see page E7). 

4P 

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

ZV-BD-0250-400 20652 Withdrawable device 3.2 1 


- Withdrawable device: includes - complete accessories for assembly 

- circuit breakers/switch-disconnectors in plug-in design 

must be fitted with - switching unit BD250..405 or BD250..406 

- For connecting withdrawable device with busbars or cable lugs, connecting sets can be used that are included with the 

BD250..40... switching unit. For connecting in another way, it is necessary to use CS-BD-... connecting sets (see page E7). 

E5



L001 - characteristic L - lines 

protecting lines with low starting currents 

without I r 

regulation 

I n 

[A] Type Product code Description Weight [kg] Package [pc] 1) 

160 SE-BD-0160-L001 20612 Without I r 

regulation 0.317 1 






3P 

4P 

DTV3 - characteristic D - distribution 

protecting lines and transformers 

I n 

[A] Type Product code Description Weight [kg] Package [pc] 

100 SE-BD-0100-DTV3 24300 Regulation I r 

= 40 ÷ 100 A 0.317 1 


= 63 ÷ 160 A 0.317 1 


= 100 ÷ 250 A 0.317 1 


MTV8 - characteristic M - motor 

direct protection for motors and generators 

suitable also for protecting lines and transformers 

I n 


100 SE-BD-0100-MTV8 24310 Regulation I r 

= 40 ÷ 100 A 0.317 1 


= 63 ÷ 160 A 0.317 1 


= 100 ÷ 250 A 0.317 1 



SWITCH-DISCONNECTOR UNIT 

MTV9 - characteristic M - motor with adjustable timing selectivity 

direct protection for motors and generators 

suitable also for protecting lines and transformers 

enables setting time delay of independent release to 0, 100, 200 or 300 ms 

I n 



= 40 ÷ 100 A 0.317 1 


= 63 ÷ 160 A 0.317 1 


= 100 ÷ 250 A 0.317 1 


4D01 - characteristic D - distribution with N-pole protection 

protecting lines and transformers in TN-C-S and TN-S networks 

I n 


100 SE-BD-0100-4D01 33423 Regulation I r 

= 40 ÷ 100 A 0.327 1 


= 63 ÷ 160 A 0.327 1 


= 100 ÷ 250 A 0.327 1 


- intended for BD250..406 switching unit 

3P 

4P 

4P 

I e 

[A] Type Product code Name Weight [kg] Package [pc] 

250 SE-BD-0250-V001 24120 Switch-disconnector unit 0.267 1 


E6



3P 4P 

3 terminals 

Type Product code Description S [mm 2 ] Method of connection Weight [kg] Package [set] 

CS-BD-T011 24810 Clamp terminals 16 ÷ 150 Cu cables, flexibars 0.24 1 


CS-BD-B011 24751 Block terminals 25 ÷ 150 Cu/Al cables 0.21 1 


CS-BD-B012 17534 Block terminals 150 ÷ 240 Cu/Al cables 0.2 1 


CS-BD-B021 24752 Block terminals 2 x 25 ÷ 150 Cu/Al cables 0.51 1 

- double 

CS-BD-B022 13808 Block terminals 2 x 150 ÷ 240 Cu/Al cables 0.62 1 

- double 


- For enhances termination point protection to IP20 use the terminal cover OD-BD-KS03 

CS-BD-B014 20119 Block terminals 

- for 6 cables 


6 x 6 ÷ 35 Cu/Al cables 0.3 1 

CS-BD-A021 24770 Rear connection Cu/Al busbars, cable lugs 0.237 1 


CS-BD-PS01 13682 Potential terminals 1.5 ÷ 2.5; 4 ÷ 6 Cu flexible conductor 0.017 1 


CS-BD-A011 24750 Front connection Cu/Al busbars, cable lugs, 

flexibars 


- Included in every supply of switching units 

1 terminal 

0.12 1 

Type Product code Description S [mm 2 ] Method of connection Weight [kg] Package [pc] 

CS-BD-T411 19578 Clamp terminal 16 ÷ 150 Cu cables, flexibars 0.08 1 


CS-BD-B411 19582 Block terminal 25 ÷ 150 Cu/Al cables 0.07 1 


CS-BD-B412 19577 Block terminal 150 ÷ 240 Cu/Al cables 0.07 1 


1) 

- set includes three terminals 

E7



1 terminal 

Type Product code Description S [mm 2 ] Connection Weight [kg] Package [set] 

CS-BD-B421 19579 Block terminal 2 x 25 ÷ 150 Cu/Al cables 0.17 1 

- double 


3P 

4P 

CS-BD-B422 19580 Block terminal 

- double 


2 x 150 ÷ 240 Cu/Al cables 0.21 1 

CS-BD-B414 

Block terminal 

- for 6 cables 


6 x 6 ÷ 35 Cu/Al cables 0.1 1 

CS-BD-A421 19581 Rear connection Cu/Al busbars, cable lugs 0.08 1 


CS-BD-PS41 36031 Potential terminal 1.5÷2.5/4÷6 0.005 1 



RETROFIT RETROFIT 

RETROFIT 

3 terminals 

Type Product code Description Connection Weight [kg] Package [set] 

CS-BD-A037 24772 Reduction for BA...*37-50 

- front connection 


CS-BD-A039 24771 Reduction for BA...*39-50 and J2UX50 


Cu/Al busbars, cable lugs, 

flexibars 


flexibars 

0.3 1 

0.447 1 


- For total replacement of BA …*39-50 or J2UX50 circuit breaker with front connection, also needed is OD-BHD-MS39 connecting set. 

CS-BD-Z039 18201 Reduction for BA...*39 and J2UX 

- rear connection 


flexibars 

0.739 1 


- For total replacement of BA…*39 or J2UX circuit breaker with rear connection also needed are OD-BD-MZ39 and CS-BD-A021 connecting sets. 

3P 

RETROFIT 

CS-BD-JX75 18023 Reduction for BA...*39-75 and J2UX75 Cu/Al busbars, 

0.558 1 

- front connection, withdrawable design flexibars, cable lugs 


- For total replacement of BA…*39-75 or J2UX75T circuit breakers with front connection in the withdrawable design, also needed is 

OD-BHD-MS75 connecting set and either a ZO-BD-0250-300 plug-in device or ZV-BD-0250-300 withdrawable device. 

RETROFIT 

CS-BD-JT75 18024 Reduction for J2UX75T 

Cu/Al busbars, 

0.711 1 

- front connection, withdrawable design flexibars, cable lugs 


- For total replacement of J2UX75T circuit breaker with front connection in the withdrawable design, also needed is OD-BHD-MS75 connecting 

set and either a ZO-BD-0250-300 plug-in device or ZV-BD-0250-300 withdrawable device. 

RETROFIT - sets enabling replacement of old circuit breakers with the new ones without any switchboard adaptation 

E8


MOUNTING SETS 

3P 

Type Product code Description Weight [kg] Package [set] 1) 

OD-BHD-MS39 24741 Reduction for BA...*39-50 and J2UX50 - front connection 0.7 1 

- DIMENSIONS see page E28 

- For total replacement of BA…*39-50 or J2UX50 circuit breakers with front connection also needed are 2 CS-BD-A039 connecting sets. 

RETROFIT 

OD-BD-MZ39 18203 Reduction for BA...*39 and J2UX - rear connection 1.255 1 

RETROFIT 


- For total replacement of BA …*39 or J2UX with rear connection also needed are CS-BD-Z039 and CS-BD-A021connecting sets. 

RETROFIT 

OD-BD-MT75 

Reduction for J2UX75T 

1 

- front connection, withdrawable design 

- DIMENSIONS see page E34, E38 

- For total replacement of J2UX75T circuit breakers with front connection in the withdrawable design, also needed are 2 CS-BD-JT75 connecting sets 

and ZO-BD-0250-300 plug-in device or ZV-BD-0250-300 withdrawable device 

RETROFIT 

OD-BHD-MS75 14563 Reduction for BA...*39-75 a J2UX75 

0.446 1 

- front connection, withdrawable design 

- DIMENSIONS see page E34, E37 

- For total replacement of BA...*39-75 or J2UX75 circuit breaker with front connection in the withdrawable design, also needed are 2 CS-BD-JX75 

connecting sets and either a ZO-BD-0250-300 plug-in device or ZV-BD-0250-300 withdrawable device. 

1) 

- one mounting kit makes possible to replace one circuit breaker 

(the kit contains necessary coupling elements for circuit breaker - mounting kit connection) 

RETROFIT - sets enabling replacement of old circuit breakers with the new ones without any switchboard adaptation 

E9


SWITCHES 

3P 4P 

Single make contacts 

Type Product code Operating voltage Contacts Weight [kg] Package [pc] 

PS-BHD-1000 24700 60 ÷ 500 V a.c./d.c. 0.012 1 

PS-BHD-1000-Au 24702 5 ÷ 60 V a.c./d.c. 0.012 1 


Single break contacts 


PS-BHD-0100 24701 60 ÷ 500 V a.c./d.c. 0.013 1 

PS-BHD-0100-Au 24703 5 ÷ 60 V a.c./d.c. 0.013 1 


Double contacts 


PS-BHD-0200 13690 60 ÷ 500 V a.c./d.c. 0.026 1 

PS-BHD-0200-Au 13693 5 ÷ 60 V a.c./d.c. 0.026 1 

PS-BHD-1100 13691 60 ÷ 500 V a.c./d.c. 0.025 1 

PS-BHD-1100-Au 13694 5 ÷ 60 V a.c./d.c. 0.025 1 

PS-BHD-2000 13689 60 ÷ 500 V a.c./d.c. 0.024 1 

PS-BHD-2000-Au 13692 5 ÷ 60 V a.c./d.c. 0.024 1 


Change-over contacts 


PS-BHD-0010 18021 60 ÷ 250 V a.c./d.c. 0.013 1 

PS-BHD-0010-Au 18022 5 ÷ 60 V a.c./d.c. 0.013 1 

PS-BHD-0020 35 893 60 ÷ 250 V a.c./d.c. 0.026 1 

PS-BHD-0020-Au 37467 5 ÷ 60 V a.c./d.c. 0.026 1 


Early contacts 

Type Product code Description Contacts Weight [kg] Package [pc] 

SP-BHD-0002 16169 Early contact 0.045 1 


SHUNT TRIPS 

3P 

4P 

Type Product code Operating voltage Weight [kg] Package [pc] 

SV-BHD-X024 24650 24, 40, 48 V a.c./d.c. 0.14 1 

SV-BHD-X110 24630 110 V a.c./d.c. 0.14 1 

SV-BHD-X230 24620 230, 400, 500 V a.c./ 220 V d.c. 0.14 1 


UNDERVOLTAGE RELEASES 

3P 

4P 

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

SP-BHD-X024 24450 24, 40, 48 V a.c./d.c. 0.11 1 

SP-BHD-X110 24430 110 V a.c./d.c. 0.11 1 

SP-BHD-X230 24420 230, 400, 500 V a.c./ 220 V d.c. 0.11 1 

SP-BHD-X024-0001 1) 24550 24, 40, 48 V a.c./d.c. Early contact 0.12 1 

SP-BHD-X110-0001 1) 24530 110 V a.c./d.c. Early contact 0.12 1 

SP-BHD-X230-0001 1) 24520 230, 400, 500 V a.c./ 220 V d.c. Early contact 0.12 1 


1) 

- cannot be used in combination with the MP-BD-X... motor drive 

E10

HAND DRIVES 


3P 

4P 

Type Product code Name - description Weight [kg] Package [pc] 

RP-BD-CK10 13651 Hand drive unit - no locking 0.223 1 

RP-BD-CK20 13652 Hand drive unit - lockable 0.223 1 


Hand drive unit is necessary to be completed: for controlling using the switch unit – with the red hand drive lever RP-BHD-CP21 

for controlling through the switchboard door - with the extension shaft RP-BHD-CH.. 

- with the hand drive bearing RP-BHD-CN.. 

- with the hand drive lever RP-BHD-CP.. 

RP-BD-CK21 13684 Hand drive unit - yellow label - lockable 0.223 1 


Hand drive unit is necessary to be completed: for controlling using the switch unit – with the black hand drive lever RP-BHD-CP21 

for controlling through the switchboard door - with the extension shaft RP-BHD-CH.. 

- with the hand drive bearing RP-BHD-CN.. 

- with the hand drive lever RP-BHD-CP.. 

RP-BD-CK30 37250 Hand drive unit for right side controlling 0.484 1 

RP-BD-CK31 37251 Hand drive unit for left side controlling 0.484 1 


RP-BHD-CP10 13655 Hand drive lever - black - no locking 0.075 1 

RP-BHD-CP20 13656 Hand drive lever - black - lockable 0.075 1 


RP-BHD-CP21 13657 Hand drive lever - red - lockable 0.075 1 


RP-BHD-CN40 37246 Hand drive bearing - protection IP40 0.14 1 


- Is used in combination with the black lever of RP-BHD-CP10, RP-BHD-CP20 hand drives 

RP-BHD-CN41 37247 Hand drive bearing - yellow label - protection IP40 0.14 1 


- Is used in combination with the red lever of RP-BHD-CP21 hand drive 

RP-BHD-CN60 37248 Hand drive bearing - protection IP66 0.14 1 


- Is used in combination with the black lever of RP-BHD-CP10, RP-BHD-CP20 hand drives 

RP-BHD-CN61 37249 Hand drive bearing - yellow label - protection IP66 0.14 1 


- Is used in combination with the red lever of RP-BHD-CP21 hand drive 

E11


HAND DRIVES 

3P 

4P 


RP-BHD-CH10 13658 Extension shaft - length 365 mm, may be shorten 0.205 1 


RP-BHD-CH20 13659 Extension shaft - telescopic, length 245 ÷ 410 mm 0.255 1 


MECHANICAL INTERLOCKING AND PARALLEL SWITCHING 

3P 

4P 


RP-BHD-CB10 18290 Mechanical interlocking - for fixed design 0.16 1 


- Mechanical interlocking is necessary to be completed: 2x hand drive unit RP-BD-CK.. 

2x hand drive lever RP-BHD-CP.. 

RP-BHD-CD10 18289 Mechanical parallel switching - for fixed design 0.23 1 


- Mechanical interlocking is necessary to be completed: 2x hand drive unit RP-BD-CK.. 

hand drive lever RP-BHD-CP.. 

MB-BD-PV05 19612 Mechanical interlocking – for two BD250 circuit breakers 0.448 1 

MB-BHD-PV03 19613 Mechanical interlocking – for one BD250 and one BH630 

0.448 1 

circuit breaker 


- Mechanical interlocking by Bowden is intended for fixed, plug-in and withdrawable design 

MOTOR DRIVES 

3P 

4P 

ACCESSORIES 

Type Product code Name - description Operating voltage Weight [kg] Package [pc] 

MP-BD-X024 1) 21216 Motor drive 24 V a.c. / d.c. 1.529 1 

MP-BD-X048 1) 19790 Motor drive 48 V a.c. / d.c. 1.529 1 

MP-BD-X110 13537 Motor drive 110 V a.c. / d.c. 1.529 1 

MP-BD-X230 13535 Motor drive 230 V a.c. / 220 V d.c. 1.529 1 

MP-BD-X024-P 1) 20592 Motor drive - with cycle counter 24 V a.c. / d.c. 1.546 1 

MP-BD-X048-P 1) 19791 Motor drive - with cycle counter 48 V a.c. / d.c. 1.546 1 

MP-BD-X110-P 13686 Motor drive - with cycle counter 110 V a.c. / d.c. 1.546 1 

MP-BD-X230-P 13538 Motor drive - with cycle counter 230 V a.c. / 220 V d.c. 1.546 1 


- Cannot be used in combination with SP-BHD-X...-0001 

1) 

- custom production 

3P 

4P 


OD-BHD-PP01 13688 Cycle counter – cable length 110 cm 0.08 1 


- Upon agreement with the manufacturer, different conductor lengths can be supplied 

OD-BHD-KA02 13809 Extension cable – to motor drive, 12 wires, length 60 cm 0.1 1 


- Upon agreement with the manufacturer, different conductor lengths can be supplied 

E12


ACCESSORIES 

3P 

4P 


OD-BHD-KS02 24740 Insulating barriers - set (two pieces), for 3P and 4P design 0.077 1 

OD-BHD-KS42 19575 Insulating barrier - one piece, for 4P design 0.039 1 

- Included with each switching unit order 

- In case circuit breaker/switch-disconnector connection is reversed (supply to terminals 2, 4, 6) it is necessary in most cases to install 

these barriers also on the lower side 

- For more information, see page E22 

OD-BD-KS03 13534 Terminal cover - protection IP20, for 3-pole design 0.098 1 

OD-BD-KS43 19576 Terminal cover - protection IP20, for 4-pole design 0.141 1 

- Increases degree of protection of connection point to IP20 when using CS-BD-B012, B021, B022 and B014 block type terminals 

- Intended for fixed, plug-in and withdrawable design 

OD-BD-UP01 13533 Lockable lever 0.009 1 

- Enables to lock the circuit breaker in position „switched off manually“. (loaded) 

- In order to lock device, you can use the padlock with shank diameter 4 ÷ 6 mm 

OD-BD-VP01 15328 Bolt sealing inset 0.001 2 

- provides sealing for: - cavity cover 

- terminal cover 

- overcurrent release 

- hand drive unit 

- motor drive 

OD-BD-VP02 18215 Additional cover for overcurrent release 0.08 1 

- Provides sealing for overcurrent releases such as circuit breakers in the main meter switchboard 

OD-BHD-KA01 14555 Connecting cable – to connect the circuit breaker/switchdisconnector 

accessories in the withdrawable design – 15 

wires (it is possible for plug-in design and fixed design) 

0.12 1 

SO-BHD-0010 14560 Signalling position switch – to indicate the position of the 

circuit breaker in the plug-in or withdrawable devices 

- TECHNICAL INFORMATION, see page E50, E52 

0.018 1 

OD-BD-KK01 14559 Keying set – prevents inserting in the plug-in or 

withdrawable devices beyond the switching unit 

- TECHNICAL INFORMATION, see page E50, E52 

0.002 1 

OD-BHD-KT01 14642 Push button cover - for motor drive, cover may be 

provided with lead seals 


0.002 1 

E13


PURCHASE ORDER EXAMPLE 

3P 

4P 

OD-BHD-KS02 

You need the main circuit breaker to protect wiring in a small 

plant where the rated current of the protected electrical 

equipment is 235 A and where the maximum short-circuit 

current in the circuitry does not exceed 36 kA. 

Your purchase order: 

(do not enter the greyed text in your purchase order) 

The circuit breaker will be placed in a cubicle sitchgear, the 

incoming feeder will be made up by Cu conductor bars from 

busbars and the outgoing feeder will lead into the cable 

channel via sector Al cable with cross-section of 150 mm 2 . 

OD-BD-DV01 

OD-BD-MS01 

SE-BD-0250-DTV3 

CS-BD-A011 

BD250NE305 

NUMBER TYPE PRODUCT CODE 

1 piece BD250NE305 14414 - switching unit with rated current 250 A and rated short-circuit ultimate capacity 36 kA 

- the switching unit comprises of 2 connecting set for connecting Cu/Al 

busbars or cable lugs (CS-BD-A011) 

insulating barriers (OD-BHD-KS02) 

set of mounting bolts to assembly 

the switching unit (OD-BD-MS01) 

conductor holder (OD-BD-DV01) 

1 pc SE-BD-0250-DTV3 24100 - overcurrent release for protection of transformers and lines with the rated current 

250 A and its regulation by –60% 

1 pc CS-BD-B011 24751 - connecting set to connect the circuit breaker protection by Al or Cu cables with 

cross-section up to 150 mm 2 

CS-BD-B011 

CUSTOM ASSEMBLY OF CIRCUIT BREAKERS 

3P 

4P 

at customer`s request 

warranty not only for components, but for the entire configuration 

after consulting with OEZ company, based on particular specification of your configuration 

the delivery terms in 1 - 4 weeks 

extra charge for completion and special packing 

Your order should include the following specification: 

circuit breaker switching unit type 

type, rated current and adjustment of the electronic release 

connecting terminal types 

- for input terminals of circuit breaker 

- for output terminals of circuit breaker 

your mounting demands, type and functions of auxiliary switches 

your demand for mounting and type of auxiliary releases including rated voltage 

demand for fitting in a drive 

- hand drive type including accessories (operating lever, bearing, shaft) 

- motor drive type including control voltage and your demand for operations counter, extension cable 

demanded withdrawable or plug-in breaker design 

your demand for fitting in the withdrawable device indicating individual positions 

your demand for sealing the overcurrent release 

Auxiliary circuitry of the withdrawable design will be installed according to the wiring diagram supplied by 

the customer. 

E14

BD250N, BD250S - Technical information 

CIRCUIT BREAKERS, SWITCH-DISCONNECTORS 

3P 

4P 

Specifications CIRCUIT BREAKER SWITCH-DISCONNECTOR 

Type 


Dimensions A x B x C + D (3P/4P design) 105/140 x 225 x 105 + 43 mm 105/140 x 225 x 105 + 43 mm 

Weight (3P/4P design) 3 kg/4 kg 3 kg/4 kg 

Standards EN 60 947-2, IEC 947-2 EN 60 947-3, IEC 947-3 

Approval marks 

Circuit breaker 

Switch-disconnector 

Dimensions 

Installation positions – fixed, plug-in and withdrawable design 

Load 

Wiring of switch-disconnector for DC circuits 

Number of poles 3, 4 3, 4 

Rated current I n 

100, 160, 200, 250 A - 

Rated normal current I u 

250 A 250 A 

Rated operating current I e 

- 250 A 

Rated operating voltage U e 

max. 690 V a.c. 

- 

max. 690 V a.c. 

max. 440 V d.c. 

Rated frequency f n 

50/60 Hz 50/60 Hz 

Rated pulse withstand voltage U imp 

8 kV 8 kV 

Rated insulation voltage U i 

690 V 690 V 

Utilization category (selectivity) 690 V a.c. A - 

Utilization category (switching mode) 

690 V a.c. 

440 V d.c. 

- 

- 

AC-23B 

DC-23B 

Rated short-time withstand current 

I cw 

/ t 2.5 kA/1 s 3 kA/5 s 

at U e 

= 690 V a.c. 

Series 

NORMAL SUPERIOR 

BD250N BD250S 

U e 

- 

Rated short-circuit ultimate breaking capacity 

(rms value) 1) I cu 

60 kA 

36 kA 

16 kA 

10 kA 

Rated short-circuit service breaking capacity 

(rms value) 

Rated short-circuit making capacity 

(peak value) 

I cs 

I cm 

/ U e 

30 kA 

18 kA 

8 kA 

5 kA 

75 kA 

- 

100 kA 

65 kA 

25 kA 

13 kA 

50 kA 

36 kA 

13 kA 

8 kA 

140 kA 

- 

230 V a.c. 

415 V a.c. 

500 V a.c. 

690 V a.c. 

230 V a.c. 

415 V a.c. 

500 V a.c. 

690 V a.c. 

415 V a.c. 

- 

- 

- 

4 kA/ 415 V a.c. 

4 kA/ 440 V d.c. 

Off time at I cu 

10 ms - 

Losses per 1 pole fixed/withdrawable design 18 W/25 W 18 W/25 W 

Mechanical endurance 30 000 cycles 30 000 cycles 

Electrical endurance 3 000 cycles 3 000 cycles 

Frequency of switching 120 cycles/hr 120 cycles/hr 

Operating force 80 N 80 N 

Front-side device protection IP40 IP40 

Terminals protection IP20 IP20 

Operating conditions 

Reference ambient temperature 40 °C 40 °C 

Ambient temperature range -40 °C ÷ +55 °C -40 °C ÷ +55 °C 

Working environment dry and tropical climate dry and tropical climate 

Pollution degree 3 3 

Max. elevation 2000 m 2000 m 

Seismic resistance 3g ( 8 ÷ 50 ) Hz 3g ( 8 ÷ 50 ) Hz 

Design modifications 

Front/rear connections / / 

Plug-in design 3P/4P / / 

Withdrawable design 3P/4P / / 

Accessories 

Switches - auxiliary / relative / signal / early /// /// 

Shunt trip 

Undervoltage release / with early switch / / 

Front hand drive / with adjustable lever / / 

Mechanical interlocking-with Bowden cable / for manual drive / / 

Motor drive/with cycle counter / / 

Lockable lever 

Bolt sealing inset / additional cover for overcurrent release / / 

available, – unavailable, + being prepared 

1) 

- In case circuit breaker connection is reversed (input terminals 2, 4, 6, output terminals 1, 3, 5) I cu 

does not change 

E15



3P 

Diagram 

Circuit breaker with accessories (3-pole design) 

Ovládací Control obvod circuit MP 

Q3 

L+ 

OF F 

B 

ON 

S 

Plug-in Odnímatelné / Withdrawable / Výsuvné zařízení device 

2 4 1 

1 3 5 

ZO-BD 

SO 1 

ZV-BD 

Motorový pohon drive 

Pomocné Auxiliary spouště releases / Předstihový / Early switch spínač 

Hlavní Primary obvod circuit 

9 7 

X3 

3 

4 

1 

5 

A1 

B1 

A1 

10.Y 1 

10.Y 1 

10.Y3 

SE-BD 

1 3 5 

A 

NC 

C 

NO 

S5 

M 

P 

SP-BHD-X... 

SV -BHD-X... 

SP-BHD-X...-0001 

or or or 

SP-BHD-0002 

V 

Q 

B 

T1 

TEST 

T2 

MP 

T3 

X3 

8 6 2 

X4 

2 1 

J 

A2 

B2 

A2 

10.Y2 

cavity dutinaNo.10 

č.10 

10.Y2 

10.Y4 

2 

4 

6 

PE N- 

Cycle Poč. counter cyklů 

SO 2 

1 4 2 

ZO-BD 

SO 3 

ZV-BD 

1 4 2 

2 

Odnímatelné Plug-in / Withdrawable / Výsuvné zařízení device 

4 

6 

A 

B 

1. 3 

1. 4 

PS-BHD-1000 

X2 

Propojovací Connecting cable kabel 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 

Switches Spínače 

návěstní signal relativní relative pomocné auxiliary pomocné auxiliary 

1. 1 

or 

1. 2 

PS-BHD-0100 

1. 2 

1. 4 

or 

1. 1 

PS-BHD-0010 

2. 3 

2. 4 

PS-BHD-1000 

2. 1 

2. 2 

2. 2 

2. 4 

PS-BHD-0100 

2. 1 

PS-BHD-0010 

3. 3 

3. 4 

cavity dutinaNo.1 č.1 

cavity dutinaNo.2 č.2 cavity dutinaNo.3 č.3 

dutina cavity No.2 č. 2 + 3 

X1 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 

PS-BHD-1000 

3. 1 

3. 2 

3. 2 

3. 4 

or or or or 

PS-BHD-0100 


3. 1 

PS-BHD-0010 

2. 3 

2. 4 

3. 3 

PS-BHD-2000 

3. 4 

2. 1 

3. 3 

or or or 

2. 2 

PS-BHD-1100 

3. 4 

2. 1 

2. 2 

3. 1 

PS-BHD-0200 

3. 2 

Description of wiring diagram (3P and 4P design) 

MP 

motor drive - MP-BD-X... 

M 

motor 

P 

storage device 

X3 

connector to connect control circuits 

X4 

connector for external operations counter 

S5 

switch to signal AUTO (NO-C) / MANUAL (NC-C) modes 

YC 

external operations counter - OD-BHD-PP01 

B 

recommended wiring of the control circuits - not included with drive 

ON 

push button 

OFF 

push button 

S 

switch for energy storage (switched on = automatic storage, 

switch may be continuously switched on) 

Q3 

motor drive circuit breaker - see page E69 

J 

switching unit - BD250..305 

Q 

main contacts 

T1, T2, T3, T4 1) current transformers 

V 

trip-free mechanism 

SE-BD 2) 

circuit breaker - overcurrent release - SE-BD-....-.... 

switch-disconnector - switch-disconnector unit - SE-BD-0250-V001 

TEST 

push button to test release 

ZO-BD 

plug-in device - ZO-BD-0250-300 

ZV-BD 

withdrawable device - ZV-BD-0250-300 

X1, X2 connecting cable - OD-BHD-KA01 

SO1, SO2, SO3 contacts signalling position of circuit breaker/switch-disconnector in 

plug-in or SO-BHD-0010 withdrawable device 

- For more information, see pages E50, E52. 

SP-BHD-X... undervoltage release 

SV-BHD-X... shunt trip 

SP-BHD-X...-0001 undervoltage release with early contact 

SP-BHD-0002 early contact 

1) 

- Only for 4-pole design of BD250..406 switching unit 

E16



4P 

Diagram 

Circuit breaker with accessories (4-pole design) 

Ovládací Control obvod circuit MP MP 

Q3 

L+ 

OF F 

B 

ON 

S 

Odnímatelné Plug-in / Withdrawable / Výsuvné zařízení device 

2 4 1 

N 1 3 

ZO-BD 

SO 1 

ZV -BD 

5 

Motorový pohon drive 

Pomocné Auxiliary spouště releases / Předstihový / Early switch spínač 

Hlavní Primary obvod circuit 

9 7 

X3 

3 

4 

1 

5 

A1 

B1 

A1 

10.Y 1 

10.Y 1 

10.Y 3 

SE-BD 

N 1 3 

5 

A 

NC 

C 

NO 

S5 

M 

P 

SP-BHD-X... 

SV -BHD-X... 

SP-BHD-X...-0001 

or or or 

SP-BHD-0002 

V 

Q 

B 

T1 

TEST 

T2 

MP 

T3 

T4 1) 

X3 

8 6 2 

X4 

2 1 

J 

A2 

B2 

A2 

10.Y 2 


č.10 

10.Y 2 

10.Y 4 

N 

2 

4 

6 

PE N - 


SO 2 

1 4 2 

ZO-BD 

SO 3 

ZV -BD 

1 4 2 

N 

Odnímatelné Plug-in / Výsuvné / Withdrawable zařízenídevice 

2 

4 

6 


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 

X2 

Spínaèe 


návěstní signal relativní relative pomocné auxiliary auxiliary pomocné 

pomocné auxiliary 

pomocné auxiliary pomocné auxiliary 

2. 4 

2. 2 

2. 1 

3. 4 

3. 2 

3. 1 

2. 4 

3. 4 

PS-BHD-1000 

2. 2 

3. 4 

2. 2 

3. 2 

2. 3 

2. 1 

2. 2 

2. 4 

3. 3 

3. 1 

3. 2 

3. 4 

2. 3 

3. 3 

2. 1 

3. 3 

2. 1 

3. 1 

or or or or 

1. 4 

PS-BHD-0100 

1. 2 

1. 3 

1. 1 

1. 2 

1. 4 

PS-BHD-0010 

or 

PS-BHD-0100 

or 

PS-BHD-0010 

PS-BHD-1000 

PS-BHD-1000 

PS-BHD-0100 

PS-BHD-0010 

or or or 

1. 1 

4. 4 

4. 2 

PS-BHD-2000 

4. 1 

5. 4 

PS-BHD-1100 

PS-BHD-0200 

5. 2 

5. 1 

PS-BHD-1000 

4. 3 

PS-BHD-0100 

4. 1 

4. 2 

4. 4 

5. 3 

5. 1 

PS-BHD-0010 

PS-BHD-1000 

PS-BHD-0100 

5. 2 

5. 4 

or or or or 

6. 4 

PS-BHD-0010 

6. 2 

PS-BHD-1000 

PS-BHD-0100 

6. 1 

6. 3 

6. 1 

6. 2 

6. 4 

A 

B 

or 

PS-BHD-0010 

or 

dutina cavity No.1 č.1 

dutina cavity No.2 č.2 dutina cavity No.3 č.3 

dutina cavity No.2 č. 2 + 3 

cavity dutinaNo.4 č.4 cavity dutinaNo.5 č.5 cavity dutinaNo.6 

č.6 

X1 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 

Connecting Propojovací cable kabel 

E17



Specifications 

States of switches in the circuit breaker cavities 

3P 

4P 

Cavity 1 2 3 (4, 5, 6) 1) 10 2 and 3 2 and 3 2 and 3 1 2 3 


state 

Lever position of circuit 

breaker 

State of the main contacts 

PS-BHD-1000 

PS-BHD-0100 

PS-BHD-1000 

PS-BHD-0100 

PS-BHD-1000 

PS-BHD-0100 

SP-BHD-0002 

SP-BHD-....-0001 

PS-BHD-2000 

PS-BHD-1100 

PS-BHD-0200 

PS-BHD-0010 

PS-BHD-0010 

PS-BHD-0010 

Switched on 1 1 0 0 1 1 0 1 0 1 1 0 1 0 0 1 0 0 1 1 0 

Switched off manually or 

electrically by drive (loaded) 0 1 0 0 1 0 1 0 1 0 0 1 0 1 1 1 0 0 1 0 1 

Switched off by overcurrent release 0 0 1 1 0 0 1 0 1 0 0 1 0 1 1 0 1 1 0 0 1 

Switched off by auxiliary release, or by TEST push 

button or by the trip push button on the motor drive 0 1 0 1 0 0 1 0 1 0 0 1 0 1 1 1 0 1 0 0 1 

1) 

Note: 0 – contact open, 1 – contact closed 

Position of cavities in switching unit see page E63 

- Cavities 4, 5, 6 are only for 4-pole design 

Connecting and installation 

Power circuit 

Is connected using Cu or Al busbars or cables, and possibly 

cables with cable lugs. 

To have more options, connecting sets are made (see page 

E7 for detailed information) 

Generally, conductors from the supply are connected 

to input terminals 1, 3, 5 and conductors from the load to 

terminals 2, 4, 6. But it is possible to reverse the connection 

(exchanging input and output terminals without limiting 

rated short-circuit ultimate breaking capacity I cu 

). 

In case of reversed connection, in the majority of cases, 

circuit breaker/switch-disconnector must be fitted with 

OD-BHD-KS02 insulating barriers also on the side of 

terminals 2, 4, 6 (see page E22 for detailed information). 

We recommend painting the connecting busbars. 

Input and output connectors/busbars must be 

mechanically reinforced in order to avoid transferring 

electrodynamic forces to the circuit breaker during 

short circuiting. 

The way of connecting the power circuit must 

observe the deionization space of the circuit breaker/ 

switch-disconnector (see page E23). 

Recommended cross-sections of cables, busbars and flexibars for fixed, plug-in and withdrawable designs 

I n 

[A] 

Cables S [mm 2 ] Busbars W x H [mm] 

Cu Al Cu Al 

40 10 16 

50 10 16 

63 16 25 

80 25 35 

100 35 50 20 x 2 25 x 2 

125 50 70 25 x 2 25 x 3 

160 70 95 25 x 3 25 x 4 

200 95 120 25 x 4 25 x 5 

250 120 150 25 x 5 25 x 6 

Maximum circuit breaker/switch disconnector loads in accordance with ambient temperature 

BD250 Circuit breaker/switch-disconnector - connection to pole by 1 x 120 mm 2 Cu cable 

50 °C 55 °C 60 °C 65 °C 70 °C 

250 A 250 A 250 A 250 A 250 A 

Mechanical reinforcement 

of conductors for BD250 

Auxiliary circuits 

Switches, shunt trips or undervoltage releases are connected 

using flexible 0.5 ÷ 1 mm 2 Cu conductors to terminals on these 

devices. 

Motor drive and auxiliary circuits of the plug-in or 

withdrawable design are connected using a connector. 

E18




Connecting set specifications 

Type I max 

[A] Cable – ranges of connection cross-sections S [mm 2 ] 

Type of cable sector stranded sector solid round stranded round solid 

3P 

4P 

Busbars and cable Technical 

lugs W x H [mm] information 3P/4P 

CS-BD-A011 250 25 x ... 

CS-BD-A021 

CS-BD-B421 

250 25 x ... page E27/E41 

CS-BD-T011 

CS-BD-T411 

250 16 ÷ 150 Cu 10 ÷ 150 Cu 16 ÷ 150 Cu 10 ÷ 150 Cu 

CS-BD-B011 

CS-BD-B411 

250 25 ÷ 150 Cu / Al 16 ÷ 150 Cu /Al 25 ÷ 150 Cu / Al 16 ÷ 150 Cu / Al 

CS-BD-B012 

CS-BD-B412 

250 150 ÷ 240 Cu / Al 120 ÷ 240 Cu / Al 150 ÷ 240 Cu / Al 120 ÷ 240 Cu / Al 

CS-BD-B021 

CS-BD-B421 

250 2 x ( 25 ÷ 150 ) Cu / Al 2 x ( 16 ÷ 150 ) Cu / Al 2 x ( 25 ÷ 150 ) Cu / Al 2 x ( 16 ÷ 150 ) Cu / Al page E24/E39 

CS-BD-B022 

CS-BD-B422 


CS-BD-B014 

CS-BD-B414 


CS-BD-A037 250 RETROFIT - reduction in return for BA…*37 circuit breaker with front connection page E26/E41 

CS-BD-A039 250 RETROFIT - reduction in return for BA…*39 and J2UX circuit breaker with front connection page E27 

CS-BD-Z039 250 RETROFIT - reduction in return for BA…*39 and J2UX circuit breaker with rear connection page E28 

CS-BD-JX75 250 RETROFIT - reduction in return for BA...39-75 and J2UX75 circuit breaker with front connection in withdrawable device page E28 

CS-BD-JT75 250 RETROFIT - reduction in return for J2UX75T circuit breaker with front connection in withdrawable device page E34/E38 

CS-BD-PS01 10/16 1.5 ÷ 2.5 / 4 ÷ 6 Cu flexible conductor 

CS-BD-PS41 10/16 1.5 ÷ 2.5/4 ÷ 6 Cu flexible conductor 

RETROFIT - the connecting sets that makes possible to replace old circuit breakers with new ones without switchboard reconstruction 

Front connection - Cu/Al busbars 

Rear connection - Cu/Al busbars 

ø8.5 

ø8,5 

OD-BHD-KS02 

25 

CS-BD-A011 

CS-BD-A021 

12,5 

12.5 

25 

2. 

7. 

6. 

F 

Click ! 

3. 

BD250... 

BD250... 

3. 

1. 

193 

1. 

M8 

2. 

3. 

4. 

4. 

5. 

12,5 

12.5 

8. 

15 Nm ... 6 

6. 

5. 

15 Nm ... 6 

9. 

0,8 0.8 Nm 

7. 

0.8 0,8Nm 

E19




3P 

4P 

Front connection - Cu cables Front connection - Cu/Al cables - do 150 mm 2 

OD-BHD-KS02 

CS-BD-T011 

OD-BHD-KS02 

CS-BD-B011 

7. 

F 6. 

BD250... 

8. 

F 7. 

BD250... 

2. 

173 

3. 

4. 

Click ! 

173 

3. 

Click ! 

1. 

2. 

15 Nm ... 6mm 

1. 

20 

9. 

0,8 0.8 Nm 

8. 

25 

4. 

5. 

20 

2 

10 ÷ 50 mm Cu ... 15 Nm ... 5 mm 

2 

70 ÷ 150 mm Cu ... 20 Nm ... 5 mm 

10. 

9. 

25 

5. 

6. 

2 

16 ÷ 50 mm Al, Cu ... 15 Nm ... 6mm 

2 

70 ÷ 150 mm Al, Cu ... 20 Nm ... 6mm 

0,8 0.8 Nm 

Front connection - Cu/Al cables do 240 mm 2 

Front connection - 2 x Cu/Al cables 

OD-BHD-KS02 

CS-BD-B012 

OD-BHD-KS02 

CS-BD-B021 

8. 

F 

or 

OD-BD-KS03 

IP20 

9. 

10. 

8. 

F 

5. 

15 Nm ... 6 

Clic k ! 

2. 

3. 

BD250... 

8. 

F 

or 

OD-BD-KS03 

IP20 

9. 

10. 

8. 

F 

5. 

15 Nm ... 6 

Click ! 

2. 

3. 

BD250... 

M8 

1. 

M8 

1. 

4. 

4. 

273 

301 

7. 

6. 

7. 

2 

120 ÷ 150 mm Al ,Cu ... 25 Nm ... 8mm 

2 

185 ÷ 240 mm Al ,Cu ... 30 Nm ... 8mm 

6. 

2 

16 ÷ 50 mm Al, Cu ... 15 Nm ... 6mm 

2 

70 ÷ 150 mm Al, Cu ... 20 Nm ... 6mm 

8. 

F 

30 

8. 

F 

25 

43 

11 . 

0.8 0,8 Nm 11 . 

0.8 0,8 Nm 

E20




3P 

4P 

Front connection - 6 x Cu/Al cables 

Front connection - cable lugs 

OD-BHD-KS02 

or 

OD-BD-KS03 

IP20 

CS-BD-B014 

2. 

OD-BHD-KS02 

CS-BD-A011 

8. 

F 

Clic k ! 

3. 

F 6. 

or 

OD-BD-KS03 

IP20 

Click ! 

2. 

3. 

9. 

10. 

8. 

F 

5. 

CS-BD-B014 

15 Nm ... 6 

M8 

1. 

7. 

8. 

6. 

F 

BD250... 

1. 

M8 

4. 

287 

5. 

25 

4. 

13 

8,5 

8.5 

25 ÷ 150 mm 

2 

Cu ( Klauke ) 

25 ÷ 120 mm 

2 

Al ( Klauke ) 

6. 

7. 

2 

6÷16mm Cu, Al ... 4 Nm ... 4mm 

2 

16 ÷ 35 mm Cu, Al ... 6 Nm ... 4mm 

15 Nm ... 6 

8. 

F 

14.5 

14,5 

26 

37.5 

37,5 

9. 

0.8 0,8 Nm 

6. 

F 

0.8 0,8 Nm 

11 . 

Front connection - reduction BD to BA …*37 

Front connection - reduction BD to BA …*39 and J2UX 

CS-BD-A037 

CS-BD-A039 

OD-BHD-KS02 

2. 

Click ! 

3. 

OD-BHD-KS02 

Click ! 

2. 

3. 

7. 

6. 

F 

BD250... 

7. 

F 6. 

BD250... 

M8 

1. 

M8 

1. 

4. 

4. 

15 Nm ... 6 

8. 

5. 

9. 

0.8 0,8 Nm 

50 

50 

ø 11 

273 

9. 

0.8 0,8 Nm 

15 Nm ... 6 

5. 

8. 

70 

22 

70 

ø11 

25 308 

44 

E21




Rear connection – reduction BD to BA …*39 and J2UX with rear connection 

3P 

4P 

70 

70 

44 

NOT NENÍ INCLUDED SOUČÁSTÍ IN ORDER DODÁVKY 

25 

ø11 

308 

15 

CS-BD-A021 

15 Nm 

CS-BD-Z039 

2. 

1. 

15 Nm ... 6 

BD250... 

3. 

MAX. 20 

5. 

6. 

0,8 0.8 Nm 

4. 

15 Nm ... 6 

Deionization space 

USE OF INSULATING BARRIERS AND TERMINAL COVERS WITH CIRCUIT BREAKERS AND SWITCH-DISCONNECTORS 

FIXED DESIGN 


- terminals 1, 3, 5 a) If U e 

≥ 415 V a.c., it is necessary to use OD-BHD-KS02 insulating barriers 

(upper side) or a OD-BHD-KS03 terminal cover. 

b) If insulated conductors are not used for connecting power circuit to terminals 1, 3, 5, flexibars or rear 

connection, it is necessary to use OD-BHD-KS02 insulating barriers or a OD-BHD-KS03 terminal cover. 

- terminals 2, 4, 6 Only in case that circuit breaker/switch-disconnector is connected to the source using terminals 2, 4, 6 

(lower side) and furthermore: 

- rear connection - Insulating barriers or terminal covers need not be used. 

a) If U e 

≥ 415 V a.c., it is necessary to use OD-BHD-KS02 insulating barriers or a OD-BHD-KS03 terminal cover; 

b) if insulated conductors are not used for connecting power circuit to terminals 2, 4, 6, flexibars or rear 

connection, it is necessary to use OD-BHD-KS02 insulating barriers or a OD-BHD-KS03 terminal cover. 

PLUG-IN AND WITHDRAWABLE DEVICE 

- Insulating barriers or terminal covers need not be used. 

E22



Deionization space 

3P 

4P 

C=20 B=105 B=105 B=105 

C=20 

H 

OD-BHD-KS02 

E=105 

G=80 

A…minimum distance between the circuit breaker/ 

switch-disconnector and uninsulated earthed wall 

(applicable for connecting using insulated conductors, 

cables, flexibars or with rear connection) 

A2 

A1 

A 

100-150 

A1…minimum insulation length of bare conductors 

(using OD-BHD-KS02 insulating barriers from 100 mm to 

max. 150 mm, or by adding additional insulation for the 

conductors with barriers to obtain at least A1 value) 

225 

20 

F=0 G=0 

A2…minimum distance: 

- between the circuit breaker/switch-disconnector and 

uninsulated earthed wall (applicable for uninsulated 

conductors and busbars) 

- between the circuit breaker/switch-disconnector and 

busbar 

- between two circuit breakers/switch-disconnectors 

situated vertically above one another 

- between uninsulated connections of two circuit breakers/ 

switch-disconnector above one another 

C, D, E, F, G…minimum distance between the circuit 

breaker/switch-disconnector and uninsulated earthed wall 

H…minimum distance between uninsulated conductors 

minimum distance of circuit breakers without using 

of uninsulated barriers is 50 mm 

H 

Busbar Pas 

>15mm 

max.3 mm 

Cable Kabel 

Flexibar 

max.3 mm 

When insulating conductors, cables, flexibars or rear connection are used up to U 36 ÷ 65 ≤ 36 ≤ 25 ≤ 13 

BD250N wired with I k 

” [kA] ≤ 60 ≤ 36 ≤ 16 ≤ 10 

G [mm] H [mm] 

A [mm] 50 50 50 50 50 

≥ 10 A1 [mm] 100 150 100 150 150 

< 80 A2 [mm] 200 250 200 250 250 

A [mm] 50 50 50 50 50 

≥ 30 A1 [mm] 100 150 100 150 150 

A2 [mm] 150 200 150 200 200 

A [mm] 50 50 50 50 50 

≥ 80 ≥ 10 A1 [mm] 100 150 100 150 150 

A2 [mm] 150 200 150 200 200 

Note: I k 

“ - max. short circuit current in the protected circuit (rms) 

E23



3P 

Dimensions 

Fixed design, front connection 

Drilling position 

35 35 

2 

103 

213 

193 

167 

35 

48 

154 

162 

225 100 

25 4 

18 

60 

29.5 

162 

4xø5.5 

31.5 

65 

17° 

26° 

R88 

2° 

35.5 

121 

150 ... > AC 415 V 

100 ... < AC 415 V 

16 

26 

Ø 8.5 

105 

20 

105 

117 5 

35 35 

Fixed design, front connection (connecting set CS-BD-B012) 

105 

35 35 

25 

42 

105 

35 

273 

248 

225 

193 

162 

335 

223 

30 

ø22 

E24



3P 

Dimensions 


105 

35 35 

25 

105 

40 24 

35 

301 

281 

244 

225 

193 

162 

335 

224 

261 

25 

Ø18 

Ø18 

E25



3P 

Dimensions 


105 

35 35 

25 

105 

42 28 

35 

319 

294 

248 

225 

193 

162 

335 

219 

269 

30 

Ø22 

Ø22 


105 

58 

47 

35 

105 

35 

36 

24 

24 

24 

35 

287 

269 

246 

225 

223 

193 

162 

335 

213 

236 

259 

11 

25 

ø8.4 

ø8.4 

ø8.4 

E26



3P 

Dimensions 

Fixed design, rear connection (connecting set CS-BD-A021) 


35 35 

7.5 

4 

46 

20 

105 

8.5 

21 2 

98 

35 

35 

4xø5.5 

48 

193 

154 

162 

225 

193 

65 

ø8.5 

16 

1.5 

162 

193 

225 

R6 

28 

105 

16 

36 

35 

Fixed design, front connection (connecting set CS-BD-A037) 

RETROFIT 

105 

50 50 

35 35 

29 

4 

35 

36.5 

12.5 

273 

193 

162 

225 

24 

ø11 

32 32 

E27



3P 

Dimensions 

Fixed design, front connection (connecting set CS-BD-A039, mounting set OD-BHD-MS39) 

RETROFIT 

70 70 

35 35 

3 

29 4 

25 

25 

35 

308 

193 

105 

162 

360 

81.5 225 

ø11 

ø11 

15 

32 32 

Fixed design, rear connection (connecting set CS-BD-Z039, mounting set OD-BD-MZ39) 

RETROFIT 

210 

70 

4 29.5 3 

8 

15 

32 

4xØ7 

12xØ11 

140 

105 

36 

25 

395 

225 

360 

307 

25 

46 

105 

70 70 

E28



3P 

Dimensions 

Fixed design, hand drive 

42.5 

BH250... 

RP-BD-CK.. 

RP-BHD-CP.. 

133 

50 

37 

50 

25° 

90° 

140 

Fixed design, hand drive with adjustable lever 

70 

RP-BD-CK.. 

RP-BHD-CP.. 

RP-BHD-CN.. 

BD250... 

RP-BHD-CH.. 

133 

50 

70 

37 

PANEL SWITCHBOARD ROZVÁDĚČE PANEL 

25° 

90° 

140 

180 ÷ 495 (CH10) 

375 ÷ 540 (CH20) 

Switchboard door adaptation 

MIN. 145 

27.5 

4x 6.5 

HINGE OF SWITCHBOARD DOOR 

ZÁVS DVEÍ ROZVÁDE 

50 

55 

55 

E29



3P 

Dimensions 

Fixed design, hand drive side - right 

105 


RP-BD-CK30 

RP-BHD-CN.. 

RP-BHD-CP.. 

90° 

45° 

RP-BHD-CH... 

BD250... 

30 

67 - 380 (CH10) 

256 - 445 (CH20) 

71 

163 

Fixed design, motor drive MP-BD-X... 

R487.9 

Opening dimensions in switchboard 

door for external cycle counter 

Rmax 1 

27 

82 

138 

195 

14 

133 

Fixed design, hand drive side - left 

SWITCHBOARD PANEL ROZVÁDĚČE PANEL 

RP-BD-CK31 

105 

RP-BHD-CN.. 

70 

RP-BHD-CP.. 

RP-BHD-CH... 

133 

BD250... 

90° 

45° 

71 

88 - 400 (CH10) 

276 - 465 (CH20) 

50 

163 

247 

E30



3P 

Dimensions 

Plug-in device ZO-BD-0250-300 


35 35 

25 4 

18 

4xø5.5 

4xø5.5 

35 

145 

16 

ø8.5 

26 

105 

Plug-in device, OD-BD-KS03 terminal cover 

103 

70 

105 

35 

105 

400 

290 

278 

258 

75 

232 

140 

162 

193 

227 

20 

26 

31.5 

31.5 

290 

75 

140 

227 

20 

35 35 

35 

35 

35 

105 

E31



3P 

Dimensions 

Plug-in design 


46 

290 

105 

7.5 

258 

ø8.5 

16 

4 

20 

105 

28 45 

52 21 2 

98 

4xø5.5 

140 

75 

258 

28 1.5 

8.5 21 2 

R6 

98 

4xø5.5 

227 

258 

16 

36 

35 35 

35 

35 

31.5 


105 

105 

182 

290 

140 

157 

E32



3P 

Dimensions 

Plug-in design, hand drive 

225 

175 

Plug-in design, motor drive MP-BD-X... 

282 31 

E33

4xø5 

4xø6 



3P 

Dimensions 

Plug-in device (connecting set CS-BD-JX75, mounting set OD-BHD-MS75) 

RETROFIT 

2xø10 

70 70 

25 10 

20 5 

106.5 

483 

433 

180 

290 

106.5 

25 

160 

Plug-in device (connecting set CS-BD-JT75, mounting set OD-BD-MT75) 

RETROFIT 

2xø11 

70 70 

25 10 

20 5 

154 

578 

528 

290 

180 

151.5 

154 

25 

160 

E34



3P 

Dimensions 

Withdrawable device ZV-BD-0250-300 


35 35 

25 4 

18 

4xø5.5 

4xø5.5 

35 

290 

278 

145 

258 

232 

140 

162 

193 

75 

227 

20 

26 

31.5 

31.5 

290 

140 

227 

75 

16 

ø8.5 

20 

35 35 

26 

35 

105 

105 

Withdrawable device, OD-BD-KS03 terminal cover 

180 

105 

35 

70 

103 

105 

400 

140 

130 

179 

140 27.5 

E35



3P 

Dimensions 

Withdrawable design 

Operating position 

Checking position 

179 

105 

105 

182 

105 

30 

212 

290 

140 

140 

65 

74.9 

75 

180 

140 

157 

170 

187 

Withdrawable design, hand drive 



225 

30 

255 

140 

140 

75.2 

75 

175 

205 

E36

4xø5 



3P 

Dimensions 

Withdrawable design, motor drive MP-BD-X... 



282 31 

30 

312 31 

140 

140 

75 

75 

Withdrawable device (connecting set CS-BD-JX75, mounting set OD-BHD-MS75) 

RETROFIT 

2xø10 

70 70 

25 10 

20 5 

106.5 

483 

433 

180 

290 

140 

75 

106.5 

25 

160 

E37



3P 

Dimensions 

Withdrawable device (connecting set CS-BD-JT75, mounting set OD-BD-MT75) 

RETROFIT 

2xø11 

70 70 

25 10 

20 5 

4xø6 

154 

578 

528 

290 

140 

180 

75 

151.5 

154 

25 

160 

Withdrawable device, rear connection (connecting set CS-BD-A021) 

46 

258 7.5 

4 

20 

105 

21 2 

52 

98 

140 

ø8.5 

17 

16 

258 

4xø5.5 

28 

75 

45 

37 

35 

35 

E38



4P 

Dimensions 

Fixed design, front connection 


35 35 35 

103 

2 

25 4 

18 

150 ... > AC 415 V 

100 ... < AC 415 V 

35 

48 

60 

26° 

17° 

29.5 

65 

R88 

2° 

35.5 

121 

213 

193 

167 

154 

162 

225 

162 

4xø5.5 

31.5 

16 

26 

ø8.5 

140 

20 

105 

117 5 

70 

35 35 

Fixed design, front connection (connecting set CS-BD-B012 + CS-BD-B412) 

25 

42 

105 

35 35 35 

35 

273 

248 

225 

193 

162 

335 

223 

140 

30 

ø22 

E39



4P 

Dimensions 


105 

40 24 

25 

35 35 35 

35 

140 


35 35 35 

25 

105 

42 28 

35 

319 

294 

248 

225 

193 

162 

335 

219 

269 

301 

281 

244 

225 

193 

162 

335 

224 

261 

25 

Ø18 

Ø18 

30 

Ø22 

Ø22 

E40



4P 

Dimensions 


58 

47 

36 

24 

105 

35 

35 35 

35 

Fixed design, rear connection (connecting set CS-BD-A021 + CS-BD-A421) 


287 

269 

246 

223 

193 

162 

225 

335 

213 

236 

259 

140 

25 

11 

ø8.4 

ø8.4 

ø8.4 

46 

105 

133 

35 

35 

35 

48 

35 

65 

154 

162 

225 

7.5 

193 

ø8.5 

4 

16 

20 

162 8.5 

28 1.5 

21 2 

ø6 

35 

4xø5.5 

193 

225 

140 

16 

36 

35 

E41



4P 

Dimensions 

Fixed design, hand drive 

77.5 

BH250... 

RP-BD-CK.. 

RP-BHD-CP.. 

133 

50 

37 

50 

25° 

90° 

140 

Fixed design, hand drive with adjustable lever 

70 

RP-BD-CK.. 

RP-BHD-CP.. 

RP-BHD-CN.. 

BD250... 

RP-BHD-CH.. 

133 

50 

70 

37 


25° 

90° 

140 

180 ÷ 495 (CH10) 

375 ÷ 540 (CH20) 

Switchboard door adaptation 

MIN. 145 

27.5 

4x 6.5 

HINGE OF SWITCHBOARD DOOR 

ZÁVS DVEÍ ROZVÁDE 

50 

55 

55 

E42



4P 

Dimensions 

Fixed design, motor drive MP-BD-X... 

Opening dimensions in switchboard 

door for external cycle counter 

R487.9 

Rmax 1 

27 

82 

138 

195 

14 

140 

247 

Plug-in device ZO-BD-0250-400 


35 35 35 

25 4 

18 

4xø5.5 

35 

145 

4xø5.5 

20 

26 

31.5 

31.5 

290 

278 

258 

232 

75 

75 

140 

162 

193 

227 

290 

140 

227 

16 

ø8.5 

20 

35 

35 

35 

35 

26 

35 

140 

105 

E43



4P 

Dimensions 

Plug-in device, OD-BD-KS43 terminal cover 

140 

35 

70 

103 

105 

400 


140 

105 

182 

290 

140 

157 

E44



4P 

Dimensions 

Plug-in design, rear connection (connecting set CS-BD-A021+ CS-BD-A421) 


46 

140 

140 

7.5 

4 

20 

105 

52 21 2 

35 

16 

45 

290 

258 

140 

258 

4xø5.5 

ø8.5 

28 

16 

36 

2 

75 

35 

35 

E45



4P 

Dimensions 

Plug-in design, hand drive 

140 

225 

290 

175 

Plug-in design, motor drive MP-BD-X... 

140 

282 31 

290 

E46



4P 

Dimensions 

Withdrawable device ZV-BD-0250-400 


214 

35 35 35 

25 4 

18 

4xø5.5 

4xø5.5 

35 

145 

75 

20 

26 

31.5 

290 

16 

26 

ø8.5 

140 

215 

20 

35 

105 

Withdrawable device, OD-BD-KS43 terminal cover 

35 

70 

103 

130 

105 

140 

290 

278 

258 

232 

140 

162 

193 

227 

215 

140 

400 

35.5 

227 

140 

75 

35 

35 

140 27.5 

E47



4P 

Dimensions 

Withdrawable design Operating position Checking position 

212 

213 

140 

105 

182 

105 

30 

290 

140 

140 

65 

74.9 

75 

215 

140 

157 

170 

187 

Withdrawable design, rear connection (connecting set CS-BD-A021 + CS-BD-A421) 


213 

140 

4 

46 

20 

105 

2 

35 

133 

17 

258 7.5 

ø8.5 

28 

16 

75 

45 

290 

65 

21 

52 

140 

4xø5.5 

215 

37 

2 

35 35 

E48



4P 

Dimensions 

Withdrawable design, hand drive Operating position Checking position 

213 

140 

225 

30 

255 

Withdrawable design, motor drive MP-BD-X... 


213 

140 

282 31 

140 

75 


30 

312 31 

140 

75 

290 

65 

290 

140 

140 

65 

75.2 

75 

215 

175 

205 

215 

E49



3P 

4P 

Plug-in device 


in plug-in design 

Locking plug-in device against 

inserting circuit breaker 

Description 

Plug-in design of the circuit breaker / switch-disconnector is 

intended for demanding industrial applications where rapid 

exchange of the circuit breaker along with both visual and 

conductive disconnection of the circuit are needed. 

plug-in device includes complete accessories for assembling 

circuit breaker / switch-disconnector in plug-in 

design from the originally fixed design 

components of the plug-in device are: 

- supporting part of the plug-in device 

- 2 connecting sets (total of 6 terminals) – for fitting 

onto the switching unit 

- interlocking connecting rod (ensures automatic switching 

off of the circuit breaker for handling – inserting and 

removal) 

- set of mounting bolts for securing circuit breaker into 

plug-in device (to secure plug-in device into switchboard, 

a set of mounting bolts is used that is included 

in delivery of switching unit) 

Circuit breaker position 

Circuit breaker in plug-in design has two positions: 

1. inserted (operating position) 

2. removed 


- connecting set CS-BD-A011 is used for connecting with 

busbars or cable lugs and is included in delivery of switching 

unit BD250… 

- for connecting in another way, it is necessary to use connecting 

sets, see page E7 

- connections must comply with our recommendations, see 

page E18 


These are connected using 15-wire cable OD-BHD-KA01. 

States of SO-BHD-0010 switches in plug-in device 

according to circuit breaker position 

Cavity 11, 12, 13, 14 (19, 20) 1) 

1 

Position signalling SO-BHD-0010 

Plug-in device may be provided with a maximum of four 

switches (for 4-pole design, max. 6 switches) for signalling 

the engaged/removed position. 

Keying set OD-BD-KK01 

Plug-in device and circuit breaker can be provided with keying 

set, which prevents inserting any other circuit breaker 

into the plug-in device. 

Circuit breaker accessories in plug-in design 

Circuit breaker in plug-in design has the same accessories as 

the fixed circuit breaker. 

Advantages and enhanced safety for operator: 

unambiguous remote signalling of the circuit breaker 

position 

option to lock plug-in device with padlocks to prevent inserting 

of circuit breaker 

visible and conductive disconnection of the power circuit 

easy exchange of circuit breakers in case of failure 

IP20 protection of all termination points 

plug-in device does not need earthing 

Keying set 

OD-BD-KK01 


OD-BHD-KA01 

Location of cavity for switch 

SO-BHD-0010 

in plug-in device 

11, 12, 13, 14 

Keying set 

OD-BD-KK01 


position 

2 4 

Inserted 0 1 

Removed 1 0 


1) 

- Cavities 19 and 20 are only for 4-pole design. 

Specifications SO-BHD-0010 

Type 

SO-BHD-0010 


400 V a.c. 

250 V d.c. 


500 V a.c. 


50/60 Hz 


/ U e 

AC-13 

I e 

/ U e 

DC-15 

For wiring diagram of circuit breaker in plug-in device with accessories, see page E16. 

3 A /400 V a.c. 

0.15 A /250 V d.c., 0.3 A /125 V d.c., 4 A /30 V d.c. 

Thermal current I th 

6 A 

Arrangement of contacts 001 

Connection cross-section S 0.5 ÷ 1 mm 2 

Terminal protection (connected switch) 

IP20 


SO-BHD-0010 

E50



Recommended circuit breaker manipulation 

During the manipulation with circuit breaker in plug-in design 

with motor drive, the circuit breaker may reach the state, 

in which the first attempt at switching-on by motor drive is 

unsuccessful. Switching-on is executed after repeated make 

pulse. To avoid this effect, some of the following steps may 

be done: 

3P 

4P 

Circuit breaker in plug-in design with motor drive 

1) To keep the process of manipulation with the circuit breaker, 

see „Recommended circuit breaker manipulation“ below 

2) To connect auxiliary relays into the motor drive circuit 

according to wiring diagram, see page E73, E74 

3) To connect OD-BHD-R… control relay into the motor 

drive circuit according to wiring diagram, see page E75 


After every manipulation with circuit breaker in plug-in design 

is necessary to accomplish the operations in following sequence, 

after repeated insertion into the plug-in device: 

1) Press the break push button (red) on the motor drive, see Fig. 

2) Press the make push button (green) on the motor drive, 

see Fig. 

1 

2 

Changes in states of switches in cavities of switching unit when inserting and withdrawing circuit breaker 

State of circuit breaker befor removing State of switches before removing - inserted position State of switches after removing - withdrawn 

Cavity 1 2 3 (4, 5, 6) 1) 1 2 3 (4, 5, 6) 1) 

Lever position of circuit breaker 


PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

Switched on 1 1 0 0 1 1 0 1 0 1 0 0 1 

Manually switched off or by motor drive (loaded) 0 1 0 0 1 0 1 1 0 1 0 0 1 

Switched off by releases 0 0 1 1 0 0 1 0 1 1 0 0 1 

Switched off from switched on state: by means of 

auxiliary release, TEST push button or by OFF push 

button on the motor drive 


1) 

- Cavities 4, 5, 6 are only for 4-pole design. 

0 1 0 1 0 0 1 1 0 1 0 0 1 

E51



3P 

4P 

Locking circuit breaker 

into withdrawable 

design against tampering 

Keying set 

OD-BD-KK01 

Withdrawable device 


in withdrawable design 

Locking withdrawable 

device against inserting 

circuit breaker 

Location of cavities for switch 

SO-BHD-0010 in withdrawable device 

15, 17 

11, 12, 13, 14 

16, 18 

Description 

Withdrawable design of the circuit breaker / switch-disconnector 

is intended for demanding industrial applications where rapid 

exchange of the circuit breaker, frequent checking and both 

visual and conductive disconnection of the circuit are needed. 

withdrawable device includes complete accessories for 

assembling circuit breaker / switch-disconnector in withdrawable 

design from the originally fixed design 

components of the withdrawable device are: 

- supporting part of the withdrawable device 

- 2 movable side plates 

- 2 connecting sets (total of 6 terminals) - for fitting onto 

the switching unit 

- interlocking connecting rod (ensures automatic switching 

off of the circuit breaker for handling – inserting and 

withdrawing) 

- set of mounting bolts is used to fasten the withdrawable 

device into the switchboard and these are include with the 

BD250..305 switching unit 

Circuit breaker position 

Circuit breaker in withdrawable design has three positions: 

1. inserted (operating position) 

2. withdrawn (checking position) 

3. removed 

Keying set OD-BD-KK01 

Withdrawable device and circuit breaker can be provided with 

keying set, which prevents inserting any other circuit breaker 

into the withdrawable device. 

States of SO-BHD-0010 switches in withdrawable device 

according to circuit breaker and arrestment positions 

Cavity 

11, 12, 13, 14 

(19, 20) 1) 15, 17 

(19, 20) 1) 16, 18 

Circuit breaker and 

arrestment position 

2 4 2 4 2 4 

Inserted and unarrested 0 1 1 0 0 1 

Inserted and arrested 0 1 1 0 1 0 

Withdrawn and unarrested 1 0 0 1 0 1 

Withdrawn and arrested 1 0 0 1 1 0 

Removed and unarrested 1 0 1 0 0 1 

Removed and arrested 1 0 1 0 1 0 


- operating state is always in arrested position 

- in arrested position it is possible to lock the withdrawable device (for 

more information, see „Advantages and enhanced safety for operator“) 

1) 

- Cavities 19 and 20 are only for 4-pole design 

Specifications SO-BHD-0010 

1 

1 

1 

Position signalling SO-BHD-0010 

Withdrawable device may be provided with the switches for 

signalling the position of the circuit breaker, see the table. 


- connecting set CS-BD-A011 is used for connecting with 

busbars or cable lugs and is included in delivery of switching 

unit BD250… 

- for connecting in another way, it is necessary to use 

connecting sets, see page E7 

- connections must comply with our recommendations, see 

page E19 


These are connected using 15-wire cable OD-BHD-KA01. 

Circuit breaker accessories in withdrawable design 

Circuit breaker in withdrawable design has the same 

accessories as the fixed circuit breaker. 

Advantages and enhanced safety for operator: 

unambiguous remote and local signalling of the circuit 

breaker and arrestment positions 

checking of circuit breaker and accessories function in the 

checking position 

locking of withdrawable device prevents inserting of 

circuit breaker, locking of circuit breaker in inserted (operating) 

position, locking of circuit breaker in withdrawn 

(checking) position; locking by means of padlocks 

visible and conductive disconnection of the power circuit 

easy exchange of circuit breakers in case of failure 

IP20 protection of all termination points 

withdrawable device does not need earthing 

Type 

SO-BHD-0010 


400 V a.c. 

250 V d.c. 


500 V a.c. 


50/60 Hz 


/ U e 

AC-13 

I e 

/ U e 

DC-15 

For wiring diagram of circuit breaker in withdrawable device with accessories, see page E16. 

Keying set 

OD-BD-KK01 


OD-BHD-KA01 


SO-BHD-0010 

3 A /400 V a.c. 

0.15 A /250 V d.c., 0.3 A /125 V d.c., 4 A /30 V d.c. 


6 A 

Arrangement of contacts 001 


Terminal protection (connected switch) 

IP20 

E52




During the manipulation with circuit breaker in withdrawable 

design with motor drive, the circuit breaker may reach the 

state, in which the first attempt at switching-on by motor 

drive is unsuccessful. Switching-on is executed after repeated 

make pulse. To avoid this effect, some of the following steps 

may be done: 

3P 

4P 

Circuit breaker in withdrawable design with motor drive 




according to wiring diagram, see page E73, E74 




After every manipulation with circuit breaker in withdrawable 

design is necessary to accomplish the operations in following 

sequence, after repeated insertion into the plug-in device: 

1) Press the break push button (red) on the motor drive, see Fig. 

2) Press the make push button (green) on the motor drive, 

see Fig. 

1 

2 

Changes in states of switches in cavities of switching unit when inserting and withdrawing circuit breaker 

State before insertion/withdrawal 

State after insertion/withdrawal 

Circuit breaker state before insertion State of switches before insertion – withdrawn position State of switches after insertion – inserted position 

Circuit breaker state before withdrawal State of switches before withdrawal – inserted position State of switches after withdrawal – withdrawn position 

Cavity 1 2 3 (4, 5, 6) 1) 1 2 3 (4, 5, 6) 1) 

Lever position of circuit breaker 


PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

PS-BHD-1000 

4 

3 

PS-BHD-0100 

2 

1 

Switched on 1 1 0 0 1 1 0 1 0 1 0 0 1 

Manually switched off or by motor drive (loaded) 0 1 0 0 1 0 1 1 0 1 0 0 1 

Switched off by releases 0 0 1 1 0 0 1 0 1 1 0 0 1 

Switched off from switched on state: by means of 

auxiliary release, TEST push button or by OFF push 

button on the motor drive 


1) 

- Cavities 4, 5, 6 are only for 4-pole design 

0 1 0 1 0 0 1 1 0 1 0 0 1 

E53



3P 

4P 

The electronic overcurrent release consists of a separate and interchangeable 

unit, which is supplied with the BD250... switching 

unit. By exchanging the overcurrent release, the range of 

the circuit breaker’s rated current can be easily changed. 

Overcurrent releases for BD250... switching units are produced 

in current values of I n 

= 100, 160 and 250 A. The 

L001 releases are produced with rated currents of 160, 200 

and 250 A. The releases (including regulation of -60%) cover 

a current range from 40 to 250 A. 

Depending upon the needs for adjusting the release’s tripping 

characteristic to the protected device and to the variability of 

the characteristic with regard to selectivity, the following release 

devices are available: 

L001 

They have one type of characteristic and fixed I n 

and I rm 

settings. 

DTV3 

They have one type of characteristic with adjustable I r 

and I rm 

. 

MTV8 

They have more kinds of characteristics with adjustable I r 

, t r 

and I rm 

. 

MTV9 

They have more kinds of characteristics with adjustable I r 

, t r 

, 

I rmv 

and t v 

. 

L001, DTV3, MTV8 and MTV9 overcurrent releases are intended 

for 3-pole, BD250..305 switching units and 4-pole, BD250..405 

switching units with disconnecting of the N pole. 

4D01 

Are intended for 4-pole, BD250..406 switching units with 

protected N pole. They have more characteristics with 

adjustable I r 

, t r 

, I rm 

and I N 

. 

L001, DTV3, MTV8, MTV9 and 4D01 - description of function 

Proper functioning of releases does not depend on the form 

of current in the power circuit. The function of the release is 

supported by a microprocessor, which processes a sampled 

signal of the power circuit and recalculates it to obtain an 

rms value. Therefore, the releases are suitable for protecting 

circuits where the sinusoidal current is distorted by high harmonics 

(e.g. circuits with controlled rectifiers, power factor 

compensators, pulse loading, and the like). 

Setting the tripping characteristic 

The tripping characteristic of the overcurrent releases is 

defined by standard EN 947-2. For releases DTV3, MTV8, 

MTV9 and 4D01, the characteristic is adjusted using latched 

switches on the overcurrent release unit. 

A visual demonstration on setting the tripping characteristic 

can be found in the SICHR program (see www.oez.com) . 

L - is a zone of low overcurrents and includes the area of 

thermal protection. 

L001 

t 

MTV8 

t 

Ir 

L 

L 

tr 

I 

I 

Irm 

50ms 

0ms 

I 

S - is a zone of medium overcurrents and includes long-distance 

short-circuit protection for lines. Intentional delay in 

tripping of these low short-circuit currents can be used to 

achieve selectivity of protective devices. For MTV9 releases, the 

delay can be set at 0, 100, 200 or 300 ms. 

I - is a zone of high overcurrents and includes protection 

against ultimate short-circuit currents. For MTV8 releases, 

the time delay can be set at 0 or 50 ms. 

DTV3 

t 

MTV9 

t 

Ir 

Ir 

L 

L S I 

tr 

Irmv 

tv 

I 

Irm 

I 

All the releases protect a circuit against short-circuiting and 

overloading. Tripping characteristic of the releases is independent 

of the ambient temperature. The release is affixed 

to the switching unit by two bolts. The translucent cover over 

the adjustment controls can be sealed. 

I 

4D01 

L 

I 

I 

t 

Ir 

IN 

tr 

Irm 

I 

E54



1. Dependent release (thermal) L 

The dependent release DTV3 is adjusted using one I r 

switch. The I r 

switch is used to adjust the circuit breaker’s 

rated current, with the characteristic shifting on the current 

axis. By means of its internal circuitry, the release is set to 

one type of characteristic. 

The dependent releases MTV8, MTV9 and 4D01 are adjusted 

using two switches, I r 

and t r 

. The first (I r 

) switch is used 

to adjust the circuit breaker’s rated current. The characteristic 

is moved on the current axis. 

By turning the other switch (t r 

), the time is adjusted after 

which the circuit breaker will trip while passing through 7.2 I r 

. 

The tripping characteristic thus moves on the time axis. Using 

the t r 

switch, it is possible to set a total of 8 characteristics. For 

MTV8 and MTV9 releases there are available 4 characteristics 

for motor protection and 4 characteristics for protecting lines. 

Breaking times correspond with the release class 10 A, 10, 20, 

30. By changing t r 

, it is possible to select the characteristic according 

to the required motor starting (light, medium, heavy 

or very heavy starting). For 4D01 releases, there are available 

8 characteristics for protecting lines or transformers. It is not 

possible to turn the device back on right after the dependent 

release has been actuated and circuit breaker tripped. The 

release must be allowed to cool off, because it has a thermal 

memory. The memory can be disabled by turning the switch 

from the normal “T t 

” position to the “T 0 

” position. The dependent 

release remains active, and only its thermal memory is 

inactivated. Switching off the thermal memory should be used 

only in well-justified cases, and with the knowledge that there 

could be rising temperature in the protected device with repeated 

tripping. 

2. Delayed independent release S 

This release is only in the MTV9 overcurrent releases. The 

delayed independent release has the function of a delayed 

short-circuit release. It is used to set up a selective cascade of 

circuit breakers. It is set up using parameters I rmv 

and t v 

. I rmv 

is 

an n-multiple of current I r 

(I rmv 

= n × I r 

). It is a short-circuit 

current that, within the span of I rmv 

to I rm 

, will trip the circuit 

breaker with delay t v 

, where t v 

is a delay set up for switching 

off the release. The delayed independent release actuates the 

circuit breaker if the current in the circuit reaches at least the 

preset n-multiple and lasts at least the preset delay time t v 

. 

3P 4P 

Tripping characteristics of L001, DTV3, MTV8, MTV9 and 

4D01 releases with load 

The tripping characteristic from the cold state indicates the tripping 

times during which it is assumed that, up to the moment 

Example 

The shortening constant can be read from the graph. With 

steady current 85% of I r 

the real tripping time will be 

shortened to: 

when an overcurrent develops, no current is flowing through 

the circuit breaker. The tripping characteristic tripped from t s 

= 0,74 . t v 

warm state indicates the tripping times during which it is assumed 

that, before the moment when an overcurrent develops, 

current is flowing through the circuit breaker. Characteristics of 

electronic releases are independent of the ambient temperature 

and are plotted in a cold state. Digital releases enable simulation 

of a release in warm state. The tripping times become shorter in 

k [–] time shortening coefficient 

I r 

[A] adjusted rated current of the overcurrent release 

t v 

[s] tripping time of the release derived from the characteristic 

t s 

[s] real tripping time of the release tripped from warm state 

t u 

[s] standstill period for particular characteristics 

a steady state, as shown in the following graph. The steady state 

is a period during which the characteristic does not change. If the 

circuit breaker is loaded with a reduced current for at least 30 

minutes, the tripping times will be cut by a half. If the load is less 

than 70% of I r 

, the tripping time does not become shorter. 

Overcurrent releases are set by the manufacturer 

I r 

= min 

Restart = T (t) 

I rm 

= min, 0 ms 

t r 

= TV, t (t) 

, min 

Tripping time shortening with load 

I rmv 

= 0 ms, min 

I N 

= 0.5 I r 

T 

I 

r[%] 

T – When tripping from the release’s “warm” state, the tripping 

time of the characteristic is cut short during the standstill 

time t u 

by coefficient k. 

Thermal standstill time of the characteristics 

For all overcurrent releases, the thermal standstill time is t u 

≥ 30 

min. During this time, the tripping time t v 

is cut short from the 

cold-state characteristic by the coefficient k. 

3. Independent instantaneous release (short-circuit trip) I 

For releases DTV3, MTV8 and 4D01, the independent 

instantaneous release is adjusted using one I rm 

switch. The 

I rm 

switch is used for setting up the short-circuit current that, 

upon its being reached or exceeded, causes instantaneous 

tripping of the circuit breaker. 

E55


OVERCURRENT RELEASES L001 - LINES 

3P 

4P 

Protecting lines with low starting currents 

Description 

The SE-BD-....-L001 release is intended only for the BD250.... 

switching unit. The release has a thermal memory that cannot 

be disabled. Releases’ rated currents are given by their type 

designations and correspond to a standardised series of currents 

(see specifications table). The short-circuit release is fixed at 4 I n 

. 

One of the release’s advantages is its simplicity, because it does 

not require any adjustment. Therefore, it is intended for less 

complicated applications. 


Type I n 

[A] I rm 

[A] 

SE-BD-0160-L001 160 640 

SE-BD-0200-L001 200 800 

SE-BD-0250-L001 250 1000 

Tripping characteristic 

10000 

5000 

60 

30 

2000 

1000 

10 

500 

5 

200 

2 

100 

1 

50 

t [min] 

Ir 

L 

SE-BD-0...-L001 

20 

t [s] 

10 

5 

2 

1 

0. 5 

I n= 160A 

I n= 200A 

I n= 250A 

I 

0. 2 

0. 1 

0.05 

Irm 

0.02 

0.01 

0. 5 1 2 5 10 

20 50 

xIn 

E56


OVERCURRENT RELEASES DTV3 - DISTRIBUTION 

3P 

4P 

Protecting lines and transformers 

Description 

The SE-BD-....-DTV3 release is intended for BD250... switching 

units. Operation of the release is controlled by a microprocessor. 

The release is equipped with a thermal memory that can be 

disabled by turning a switch on the front panel from position 

T (t) 

to position T (0) 

. After disabling the thermal memory, the 

thermal release remains active. The operational state 70% of 

I r 

is signalled by an LED indicator that flashes green in a 1.5 

s interval. As the load grows, the blinking frequency of the 

diode increases. In case of a load larger than 110% of I r 

, this 

LED will turn red and just before tripping will begin to blink 


60 

30 

10 

5 

2 

1 

t [min] 

t [s] 

10000 

5000 

2000 

1000 

500 

200 

100 

50 

20 

10 

5 

2 

1 

0.5 

0.2 

0.1 

0.05 

0.02 

0.01 

0.1 

0.05 

0.02 

0.01 

0.1 

0.05 

0.02 

In= 100A 

In= 160A 

In= 250A 

In= 100A 

In= 160A 

In= 250A 

min 

L 

Ir 

ma x 

SE-BD-....-DTV3 

4x 

4x 

4x 

xIn 

xIn 

0.01 

0.1 0.2 0.5 1 

2 5 10 20 50 

3 

8x 

4x 

8x 

4x 

8x 

4x 

red. On the lower part of the release cover are two photocells 

for communicating with the prospective signalling unit. 

The releases have tripping characteristics especially designed 

for practical purposes that provide for optimal exploitation 

of transformers up to 1.5 I r 

. 

The releases have simple adjustment of the tripping 

characteristic. Set-up includes only the rated current and the 

short-circuit tripping level at 4 I r 

or 8 I r 

. 

3 

8x 

8x 

8x 

Irm 

Irm 

Irm 

I 

Ir 

xIn 

Irm 

Specifications - adjustable 

Type I n 

[A] I r 

[A] restart I rm 

SE-BD-0100-DTV3 100 

SE-BD-0160-DTV3 160 

SE-BD-0250-DTV3 250 

40 

43 

46 

48 

50 

55 

58 

61 

63 

69 

72 

76 

80 

87 

91 

100 

63 

69 

72 

80 

87 

91 

100 

110 

115 

120 

125 

130 

137 

144 

150 

160 

100 

110 

115 

125 

137 

144 

160 

172 

180 

190 

200 

210 

220 

231 

243 

250 

T (0) 

T (t) 

T (0) 

T (t) 

T (0) 

T (t) 

4 x I r 

8 x I r 

4 x I r 

8 x I r 

4 x I r 

8 x I r 

E57


OVERCURRENT RELEASES MTV8 - MOTORS 

3P 

4P 

Direct protection for motors and generators 

Possibility of protecting lines and transformers 

Description 

The SE-BD-....-MTV8 release is intended for BD250... 

switching units. The operation of the release is controlled by a 

microprocessor. The release is equipped with a thermal memory 

that can be disabled by turning a switch on the front panel 

from position T (t) 


. After disabling of the thermal 

memory, the thermal release remains active. 

When one or two phases fail (due to current greater than I r 

in the 

remaining phases), in the M-characteristic mode, the switch will 

open with a 4 s delay (so-called undercurrent release). 

Another parameter for adjusting the release consists of the rated 

current and short-circuit tripping level. The time delay of the 

short-circuit release can be set to 0 or 50 ms. The operational 

state 70% of I r 

is signalled by an LED indicator that flashes green 

in a 1.5 s interval. As the load grows, the blinking frequency of 

the diode increases. In case of a load larger than 110% of I r 

, this 

LED will turn red and just before tripping will begin to blink red. 

On the lower part of the release cover are two photocells for 

communicating with the prospective signalling unit. 


for practical purposes that provide for optimal exploitation of 

transformers up to 1.5 I r 

. A total of 8 characteristics can be set 

on the release. Mode “M” provides 4 characteristics suitable 

for protecting motors and in mode “TV” are 4 characteristics 

for protecting transformers and lines. The shape of each 

characteristic can be changed using a selector switch. 


Type I n 

[A] I r 

[A] t r 

[s] (7,2 x I r 

) restart I rm 

[kA] 

SE-BD-0100-MTV8 100 

SE-BD-0160-MTV8 160 

SE-BD-0250-MTV8 250 

40 1 (TV 1) T (0) 

0.125 

43 3 (TV 3) T (0) 

0.25 

46 10 (TV 10) T (0) 

0.4 

48 20 (TV 20) T (0) 

0.6 

50 20 (M 20) T (0) 

0.8 

55 15 (M 15) T (0) 

1.0 

58 8 (M 8) T (0) 

1.25 

61 3 (M 3) T (0) 

1.5 

63 3 (M 3) T (t) 

1.5 

69 8 (M 8) T (t) 

1.25 

72 15 (M 15) T (t) 

1.0 

76 20 (M 20) T (t) 

0.8 

80 20 (TV 20) T (t) 

0.6 

87 10 (TV 10) T (t) 

0.4 

91 3 (TV 3) T (t) 

0.25 

100 1 (TV 1) T (t) 

0.125 

63 1 (TV 1) T (0) 

0.2 

69 3 (TV 3) T (0) 

0.4 

72 10 (TV 10) T (0) 

0.6 

80 20 (TV 20) T (0) 

1.0 

87 20 (M 20) T (0) 

1.3 

91 15 (M 15) T (0) 

1.6 

100 8 (M 8) T (0) 

2.0 

110 3 (M 3) T (0) 

2.4 

115 3 (M 3) T (t) 

2.0 

120 8 (M 8) T (t) 

2.0 

125 15 (M 15) T (t) 

1.6 

130 20 (M 20) T (t) 

1.3 

137 20 (TV 20) T (t) 

1.0 

144 10 (TV 10) T (t) 

0.6 

150 3 (TV 3) T (t) 

0.4 

160 1 (TV 1) T (t) 

0.2 

100 1 (TV 1) T (0) 

0.35 

110 3 (TV 3) T (0) 

0.5 

115 10 (TV 10) T (0) 

0.75 

125 20 (TV 20) T (0) 

1.0 

137 20 (M 20) T (0) 

1.25 

144 15 (M 15) T (0) 

1.5 

160 8 (M 8) T (0) 

2.0 

172 3 (M 3) T (0) 

2.5 

180 3 (M 3) T (t) 

2.0 

190 8 (M 8) T (t) 

2.0 

200 15 (M 15) T (t) 

1.5 

210 20 (M 20) T (t) 

1.25 

220 20 (TV 20) T (t) 

1.0 

231 10 (TV 10) T (t) 

0.75 

243 3 (TV 3) T (t) 

0.5 

250 1 (TV 1) T (t) 

0.35 

0 ms 

50 ms 

0 ms 

50 ms 

0 ms 

50 ms 

E58


OVERCURRENT RELEASES MTV8 - MOTORS 

3P 

4P 

Tripping characteristic SE-BD-....-MTV8 

60 

30 

10000 

5000 

2000 

min 

Charakteristika Characteristic „TV“ "TV" 

Ir 

ma x 

0ms 50m s 

Ir tr Irm 

TV 

60 

30 

10000 

5000 

2000 

min 

Charakteristika Characteristic „M“ "M" 

Ir 

ma x 

0ms 50m s 

Ir tr Irm 

M 

1000 

1000 

10 

5 

2 

1 

t [min] 

500 

200 

100 

50 

L 

20 

tr 

10 

5 

2 

1 

t [min] 

500 

200 

100 

50 

L 

20 

tr 

t [s] 

20 

10 

5 

2 

1 

In= 100A 

In= 160A 

In= 250A 

10 

3 

1 

20 

10 

3 

1 

t [s] 

20 

10 

5 

2 

1 

In= 100A 

In= 160A 

In= 250A 

15 

8 

3 

20 

15 

8 

3 

0.5 

0.5 

0.2 

I 

0.2 

I 

0.1 

0.05 

0.02 

In= 100A 

0.125 

50 

0 

0.25 

0. 4 

1.25 

0.6 0.8 1. 0 1. 5 

Irm[kA ] 

0.1 

0.05 

0.02 

In= 100A 

0.125 

50 

0 

0.25 

0. 4 

1.25 

0.6 0.8 1. 0 1. 5 

Irm[kA ] 

0.01 

0.1 

0.05 

0.02 

In= 160A 

0. 2 

50 

0 

0.4 

0. 6 

2. 0 

1. 0 1. 3 1.6 2. 4 

xIn 

Irm[kA ] 

0.01 

0.1 

0.05 

0.02 

In= 160A 

0. 2 

50 

0 

0.4 

0. 6 

2. 0 

1. 0 1.3 1.6 2. 4 

xIn 

Irm[kA ] 

0.01 

0.1 

0.05 

0.02 

In= 250A 

50 

0.35 0. 5 

0 

0.75 

1.25 

1. 0 1. 5 

2. 0 2. 5 

Irm[kA ] 

xIn 

0.01 

0.1 

0.05 

0.02 

In= 250A 

50 

0.35 0. 5 

0 

0.75 

1.25 

1. 0 1. 5 

2. 0 2. 5 

Irm[kA ] 

xIn 

0.01 

0.1 0.2 0.5 1 

2 5 10 20 50 

xIn 

0.01 

0.1 0.2 0.5 1 

2 5 10 20 50 

xIn 

E59

OVERCURRENT RELEASES MTV9 - MOTORS, SETTING TIMING SELECTIVITY 


3P 

4P 

Direct protection for motors and generators 

Possibility for protecting lines and transformers 

Enables adjusting time delay of independent release 

Description 

The SE-BD-....-MTV9 release is intended for BD250... 

switching units. The operation of the release is controlled 

by a microprocessor. The release is equipped with a thermal 

memory that can be disabled by turning a switch on the front 

panel from position T (t) 


. After disabling of the 

thermal memory, the thermal release remains active. 

When one or two phases fail (due to current greater than I r 

in the remaining phases), in the M-characteristic mode, the 

switch will open with a 4 s delay (so-called undercurrent 

release). 

Another parameter for adjusting the release consists of the 

rated current and tripping level of the delayed short-circuit 

release. The time delay (t v 

) can be set on the delayed shortcircuit 

release at 0, 100, 200 or 300 ms. The operational state 

70% of I r 

is signalled by an LED indicator that flashes green in a 

1.5 s interval. As the load grows, the blinking frequency of the 

diode increases. In case of a load larger than 110% of I r 

, this 

LED will turn red and just before tripping will begin to blink 

red. On the lower part of the release cover are two photocells 

for communicating with the prospective signalling unit. 


for practical purposes that provide for optimal exploitation of 

transformers up to 1.5 I r 

. A total of 8 characteristics can be set 

on the release. Mode “M” provides 4 characteristics suitable 

for protecting motors, and in mode “T V 

” are 4 characteristics 

for protecting transformers and lines. The shape of each 

characteristic can be changed using a selector switch. 


Type I n 

[A] I r 

[A] t r 

[s] (7.2 x I r 


[kA] 

SE-BD-0100-MTV9 100 

SE-BD-0160-MTV9 160 

SE-BD-0250-MTV9 250 

40 1 (TV 1) T (0) 

3 

43 3 (TV 3) T (0) 

5 

46 10 (TV 10) T (0) 

7 

48 20 (TV 20) T (0) 

9 

50 20 (M 20) T (0) 

3 

55 15 (M 15) T (0) 

5 

58 8 (M 8) T (0) 

7 

61 3 (M 3) T (0) 

9 

63 3 (M 3) T (t) 

3 

69 8 (M 8) T (t) 

5 

72 15 (M 15) T (t) 

7 

76 20 (M 20) T (t) 

9 

80 20 (TV 20) T (t) 

3 

87 10 (TV 10) T (t) 

5 

91 3 (TV 3) T (t) 

7 

100 1 (TV 1) T (t) 

9 

63 1 (TV 1) T (0) 

3 

69 3 (TV 3) T (0) 

5 

72 10 (TV 10) T (0) 

7 

80 20 (TV 20) T (0) 

9 

87 20 (M 20) T (0) 

3 

91 15 (M 15) T (0) 

5 

100 8 (M 8) T (0) 

7 

110 3 (M 3) T (0) 

9 

115 3 (M 3) T (t) 

3 

120 8 (M 8) T (t) 

5 

125 15 (M 15) T (t) 

7 

130 20 (M 20) T (t) 

9 

137 20 (TV 20) T (t) 

3 

144 10 (TV 10) T (t) 

5 

150 3 (TV 3) T (t) 

7 

160 1 (TV 1) T (t) 

9 

100 1 (TV 1) T (0) 

3 

110 3 (TV 3) T (0) 

5 

115 10 (TV 10) T (0) 

7 

125 20 (TV 20) T (0) 

9 

137 20 (M 20) T (0) 

3 

144 15 (M 15) T (0) 

5 

160 8 (M 8) T (0) 

7 

172 3 (M 3) T (0) 

9 

180 3 (M 3) T (t) 

3 

190 8 (M 8) T (t) 

5 

200 15 (M 15) T (t) 

7 

210 20 (M 20) T (t) 

9 

220 20 (TV 20) T (t) 

3 

231 10 (TV 10) T (t) 

5 

243 3 (TV 3) T (t) 

7 

250 1 (TV 1) T (t) 

9 

0 ms 

100 ms 

200 ms 

300 ms 

0 ms 

100 ms 

200 ms 

300 ms 

0 ms 

100 ms 

200 ms 

300 ms 

E60


OVERCURRENT RELEASES MTV9 - MOTORS, SETTING TIMING SELECTIVITY 

3P 

4P 

Tripping characteristic SE-BD-....-MTV9 

60 

30 

10 

5 

2 

1 

t [min] 

t [s] 

10000 

5000 

2000 

1000 

500 

200 

100 

50 

20 

10 

5 

2 

1 

0. 5 

0. 2 

0. 1 

0.05 

I n=100A 

I n=160A 

I n=250A 

min 

L 

Ir 

20 

10 

S 

t v[ms] 

Characteristic Charakteristika“TV“ „TV“ 

max 

3 

1 

300 

200 

100 

xr 

03 I 

5I 

7 I 

0.02 

Irm v 

0.01 

0. 1 0.2 0. 5 1 

2 5 10 20 50 

xr 

xr 

xr 

9 I 

Ir 

20 

10 

3 

1 

I =250A 

n 

tr 

I =160A 

n 

t r 

[s] 

Irm v 

tv 

I =100A 

n 

xIn 

TV 

I 

60 

30 

10 

5 

2 

1 

t [min] 

t [s] 

10000 

5000 

2000 

1000 

500 

200 

100 

50 

20 

10 

5 

2 

1 

0. 5 

0. 2 

0. 1 

0.05 

I n=100A 

I n=160A 

I n=250A 

20 

15 

8 

L 

3 

min 

Ir 

S 

t v[ms] 

Characteristic Charakteristika „M““M“ 

max 

300 

200 

100 

xr 

03 I 

5I 

7 I 

0.02 

Irm v 

0.01 

0. 1 0.2 0. 5 1 

2 5 10 20 50 

xr 

xr 

xr 

9 I 

Ir 

20 

15 

8 

3 

I =250A 

n 

tr 

I =160A 

n 

t r[s] 

Irm v 

tv 

I =100A 

n 

xIn 

M 

I 

E61


OVERCURRENT RELEASES 4D01 - DISTRIBUTION WITH PROTECTED N POLE 

4P 

Protecting lines and transformers in TN-C-S and TN-S networks 

Description 

The SE-BD-....-4D01 release is intended for the BD250..406 

switching unit. The operation of the release is controlled by 

a microprocessor. The release is equipped with a thermal 

memory that can be disabled by turning a switch on the 

front panel from position T (t) 


. After disabling 

of the thermal memory, the thermal release remains active. 

The rated current I r 

, delay for switching off the release at 

7.2 I r 

, and the tripping level of the short-circuit release can 

be adjusted. 

The operational state is signalled by an LED indicator that 

flashes green in a 1.5 s interval. As the load grows, the blinking 

frequency of the diode increases. In case of a load larger than 

110% of I r 

this LED will turn red and just before tripping will 

begin to blink red. On the lower part of the release cover 

are two photocells for communicating with the prospective 

signalling unit. 

The current of the fourth pole (N pole) is adjusted using the 

IN switch as a multiple of the I r 

current. Measuring of current 

on the fourth pole can be disabled by turning the button to 

the “OFF” position. 


60 

30 

10 

5 

2 

1 

t [min] 

t [s] 

10000 

5000 

2000 

1000 

500 

200 

100 

50 

20 

10 

5 

2 

1 

0. 5 

0. 2 

0. 1 

0.05 

0.02 

N 

IN 

xr 

0.5 I 

I n=100A 

I n=160A 

I n=250A 

xr 

0.75 I 

20 

10 

3 

1 

L 

min 

xr 

1I 

Ir 

SE-BD-0...-4D01 

max 

xr 

2I 

xr 

4I 

0.01 

0. 1 0.2 0. 5 1 

2 5 10 20 50 

xr 

7 I 

IN Ir tr Irm 

xr 

9 I 

20 

10 

3 

1 

Irm 

t r 

[s] 

I 

xIn 


Type I n 

[A] I r 

[A] t r 

[s] (7.2 x I r 


[kA] I N 

[A] (m x I r 

) 

SE-BD-0100-4D01 100 

SE-BD-0160-4D01 160 

SE-BD-0250-4D01 250 

40 

43 

46 

48 

50 

55 

58 

61 

63 

69 

72 

76 

80 

87 

91 

100 

63 

69 

72 

80 

87 

91 

100 

110 

115 

120 

125 

130 

137 

144 

150 

160 

100 

110 

115 

125 

137 

144 

160 

172 

180 

190 

200 

210 

220 

231 

243 

250 

1 

3 

10 

20 

20 

10 

3 

1 

1 

3 

10 

20 

20 

10 

3 

1 

1 

3 

10 

20 

20 

10 

3 

1 

2 

T (0) 

4 

7 

T (t) 

T (0) 

9 

2 

4 

7 

T (t) 

9 

2 

T (0) 

4 

7 

T (t) 

9 

0.5 

0.75 

1 

OFF 

0.5 

0.75 

1 

OFF 

0.5 

0.75 

1 

OFF 

E62


SWITCHES 

Simple 


Type PS-BHD-..00 PS-BHD-..00-Au 1) 


60 ÷ 500 V a.c. 

60 ÷ 500 V d.c. 

5 ÷ 60 V a.c. 

5 ÷ 60 V d.c. 


500 V 500 V 


50/60 Hz 50/60 Hz 


/ U e 

AC-15 

6 A/240 V, 4 A/400 V, 2 A/500 V 

AC-12, DC-12 0.004 ÷ 0.5 A/5 V, 

I e 

/ U e 

DC-13 0.4 A/240 V, 0.3 A/400 V, 0.2 A/500 V 

0.004 ÷ 0.01/60 V 


10 A 0.5 A 

Arrangements of contacts 01, 10, 02, 11, 20 01, 10, 02, 11, 20 

Connection cross-section S 0.5 ÷ 1 mm 2 0.5 ÷ 1 mm 2 

Terminal protection (connected switch) IP20 IP20 

3P 

4P 

Double 

Change-over 

Double 

Type SP-BHD-0002 PS-BHD-0010/0020 PS-BHD-0010-Au/0020-Au 1) 


250 V a.c. 

- 

60 ÷ 250 V a.c. 

60 ÷ 250 V d.c. 

Type designation, number and type of contacts according to contact arrangement 

Arrangement of contacts Type Number of contacts Contact types 

01 PS-BHD-1000 (-Au) 1 switching 

20 PS-BHD-2000 (-Au) 2 switching 

01 PS-BHD-0100 (-Au) 1 break 

02 PS-BHD-0200 (-Au) 2 break 

11 PS-BHD-1100 (-Au) 1+1 break+switching 

001 PS-BHD-0010 (-Au) 1 make-and-break 

002 PS-BHD-0020(-Au) 2 make-and-break 

5 ÷ 60 V a.c. 

5 ÷ 60 V d.c. 


250 V 250 V 250 V 


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

Rated operating current 

I e 

/ U e 

1 A/250 V a.c. AC-15 1.5 A/250 V a.c. AC-12, DC-12 0.004 ÷ 0.5 A/5 V, 

I e 

/ U e 

- 

DC-13 0.2 A/250 V d.c. 

0.004 ÷ 0.01/60 V 


- 6 A 0.5 A 

Arrangements of contacts 02, 11, 20 001/002 001/002 

Connection cross-section S 0.5 ÷ 1 mm 2 0.5 ÷ 1 mm 2 0.5 ÷ 1 mm 2 

Terminal protection (connected switch) IP20 IP20 IP20 

1) 

- PS-BHD-....- Au is not suitable to control electromagnetic loads 

SV -BHD-X... 

SP-BHD-X... 

10 

Early 

1 2 3 

PS-BHD-.... 

Function and names of switches according to their location in cavities 

Switch location Switch name Switch function 

Cavity 1 Signalling Signal to indicate tripping of the circuit breaker by the overcurrent release 

Cavity 2 Relative Relative to indicate tripping of the circuit breaker by releases, TEST push button or by 

OFF push button on the motor drive 

Cavity 3 (4, 5, 6) 2) Auxiliary Auxiliary to indicate the position of the main contacts 

Cavity 10 Early Early to make/break in advance before making the main contact of circuit breaker/ 

switch-disconnector 

- state of switches in the switching unit cavities, see page E18 

2) 

- Cavities 4, 5, 6 are only for 4-pole design. 

Diagram 


předstihový early návěstní signal relativní relative pomocné auxiliary pomocné auxiliary pomocné auxiliary pomocné auxiliary pomocné auxiliary 

Position of cavities in switching unit BD250... 

3. 3 

2. 4 

10.Y 1 

2. 2 

3. 4 

3. 2 

2. 4 

3. 4 

2. 3 

2. 1 

3. 3 

3. 1 

2. 3 

PS-BHD-0100 

PS-BHD-1000 

PS-BHD-0100 

2. 2 

10.Y 3 

3. 4 

2. 2 

1. 3 

3. 2 

1. 1 

1. 2 

1. 4 

2. 2 

2. 4 

2. 1 

3. 3 

2. 1 

3. 1 

PS-BHD-0010 

PS-BHD-2000 

PS-BHD-1100 

PS-BHD-0200 

3. 1 

3. 2 

3. 4 

2. 1 

4. 3 

4. 1 

5. 3 

5. 1 

or or or or 

PS-BHD-0010 

1. 4 

SP-BHD-0002 

1. 2 

PS-BHD-100 0 

or 

PS-BHD-010 0 

or 

PS-BHD-0010 

or or or 

10.Y 2 

10.Y 4 

1. 1 

4. 4 

PS-BHD-1000 

4. 2 

PS-BHD-0100 

4. 1 

5. 4 

5. 2 

PS-BHD-0010 

5. 1 

6. 4 

PS-BHD-1000 

PS-BHD-0100 

6. 2 

6. 1 

4. 2 

4. 4 

5. 2 

5. 4 

6. 3 

6. 1 

6. 2 

6. 4 

PS-BHD-1000 

or or or or 

PS-BHD-0010 

PS-BHD-1000 

or 

PS-BHD-0100 

or 

PS-BHD-0010 


č.10 cavity dutinaNo.1 

č.1 



č.3 

cavity dutinaNo.2 č. 2 + 3 



č.5 dutina cavity č.6 No.6 

E63

SHUNT TRIPS 

SV -BHD-X... 

SP-BHD-X... 

10 

1 2 3 

PS-BHD-.... 




Type 

SV-BHD-X… 


24, 40, 48, 110, 230, 400, 500 V a.c. 

24, 40, 48, 110, 220 V d.c. 


50/60 Hz 

Input power at 1.1 U e 

AC 

DC 

< 3 VA 

< 3 W 

Characteristic 

U ≥ 0.7 U e 

circuit breaker must trip 

Time to switch 

20 ms 

Loading time 

∞ 


Terminal protection (connected trip) IP20 

Emplacement in cavity No. 10 

Type designation according to rated 

operating voltage 

U e 

Type 

24, 40, 48 V a.c./d.c. SV-BHD-X024 

110 V a.c./d.c. SV-BHD-X110 

230, 400, 500 V a.c. /220 V d.c. SV-BHD-X230 

The particular rated operating voltage of the 

shunt trip is set up by jumpers located right in 

the release. It is always set to the maximum 

value by default. (see Fig. 1) 

Circuit breaker/switch-disconnector switched off by shunt trip 

3P 

Fig. 1 – Setting up the rated operating voltage 

4P 

Main contacts 

2 1 

4 3 

6 5 

3.4 3.3 

3.4 3.3 

14 13 

3.2 3.1 

2.4 2.3 

2.2 2.1 

1 

0 

1 

0 

1 

0 

1 

0 

1 

0 

20 

Auxiliary switch 

20 


20 

Relative switch 

30 


30 

1 

0 

1 

0 

1 5 

10 

50 

10 2 

500 

10 3 

5000 

10 4 

t [ms] 

Circuit breaker/switch-disconnector states and lever positions 

Circuit breaker/switch-disconnector state 

Switched on 

Switched off by releases, or by TEST push button 

or by the trip push button on the motor drive 

Switched off manually or electrically by drive 

(loaded) 

Lever position of circuit breaker/switch disconnector 

E64


UNDERVOLTAGE RELEASES 

SV -BHD-X... 

SP-BHD-X... 

10 

1 2 3 

PS-BHD-.... 



Type SP-BHD-X… SP-BHD-X…-0001 2) 


24, 40, 48, 110, 230, 400, 500 V a.c. 

24, 40, 48, 110, 220 V d.c. 

24, 40, 48, 110, 230, 400, 500 V a.c. 

24, 40, 48, 110, 220 V d.c. 


50/60 Hz 50/60 Hz 

Input power at 1.1 U e 

AC 

DC 

< 3 VA 

< 3 W 

< 3 VA 

< 3 W 

Characteristic 1) 

U ≥ 0.85 U e 

- it is possible to switch 

on the circuit breaker 

U ≤ 0.35 U e 

- the circuit breaker 

must trip 

U ≥ 0.85 U e 

- it is possible to switch 

on the circuit breaker 

U ≤ 0.35 U e 

- the circuit breaker 

must trip 

Time to switch 20 ms 20 ms 

Loading time ∞ ∞ 

Connection cross-section S 0.5 ÷ 1 mm 2 0.5 ÷ 1 mm 2 

Terminal protection (connected trip) IP20 IP20 

Emplacement in cavity No. 10 10 

Early switch - 


- 250 V a.c. 


- 50/60 Hz 


/U e 

- 1 A/250 V a.c. 

Arrangements of contacts - 10, 01 

Connection cross-section S - 0.5 ÷ 1 mm 2 

Terminal protection (connected switch) - IP20 

1) 

- Tripping of the undervoltage release can be delayed using the delay unit BZ-BL-X230, for more detailed information, see page P 

2) 

- Cannot be used in combination with motor drive MP-BD-X.... 

Type designation according 

Number and type of contacts by arrangement of contacts 

to rated operating voltage 

Arrangement of contact Number of contacts Contact types 

U e 

Type 

01 1 break 

24, 40, 48 V a.c. SP-BHD-X024 

10 1 switching 

110 V a.c./d.c. SP-BHD-X110 

230, 400, 500 a.c./220 V d.c. SP-BHD-X230 

Circuit breaker/switch-disconnector 

switched off by undervoltage release 

Hlavní kontakty 

3P 

4P 

The particular rated operating voltage of the 

undervoltage release is set up by jumpers 

located right in the release. It is always set to the 

maximum value by default. (see fig. 1) 

2 1 

4 3 

6 5 

1 

0 

20 

Pomocný spínač 

3.4 3.3 

3.4 3.3 

1 

0 

20 

Pomocný spínač 

14 13 

3.2 3.1 

1 

0 

20 

Relativní spínač 

2.4 2.3 

1 

0 

30 

Relativní spínač 

Fig. 1 – Setting up the rated operating voltage 

2.2 2.1 

10.Y2 10.Y 1 

10.Y4 10.Y 3 

1 

0 

1 

0 

30 

Předstihový spínač 

20 

Předstihový spínač 

Circuit breaker/switch-disconnector 

states and lever positions 

Circuit breaker/switchdisconnector 

state 

Lever position of 

circuit breaker/ 

switch disconnector 

10.Y2 10.Y 1 

10.Y4 10.Y 3 

1 

0 

1 5 

20 

10 

50 

10 2 

500 

10 3 

5000 

10 4 

t [ms] 

Switched on 

Switched off by releases, or by 

TEST push button or by the trip 

push button on the motor drive 

Switched off manually or 

electrically by drive (loaded) 

E65


HAND DRIVES 

Description 

The hand drive makes possible to govern the circuit breaker/ 

switch-disconnector by pivoting lever, e.g. to switch machines 

on and off. Modular conception of drives makes possible simple 

mounting on the switching unit (also additionally) after 

the cavity cover is removed. A fixed motor is possible to seal. 

The drive and its accessories is ordered separately according to 

your choice, see page E11. 

The hand drive makes possible to control the circuit breaker: 

a) from the front panel of the circuit breaker (Fig.1) 

Hand drive unit RP-BD-CK.. 

+ Hand drive lever RP-BHD-CP.. 

3P 

4P 

b) through the switchboard door (Fig.2) 

Hand drive unit RP-BD-CK.. 

+ Extension shaft RP-BHD-CH.. 

+ Hand drive bearing PR-BHD-CN.. 

+ Hand drive lever + RP-BHD-CP.. 

Fig. 1 - DIMENSIONS see page E29 

The hand drive unit is fixed right on the switching unit of 

the circuit breaker. 

The hand drive bearing is fixed onto the switchboard 

door and it provides protection IP40 or IP66. 

The hand drive lever is placed on the hand drive unit or on 

the hand drive bearing. 

The extension shaft is supplied in two options, standard 

(length 365 mm – can be cut short) and telescopic (adjustable 

length 245 ÷ 410 mm) 

Enhanced safety for operator: 

The hand drive unit and hand drive lever are also supplied with 

the possibility to lock the circuit breaker in position „switched off 

manually“. The unit and lever of the hand drive can be locked 

using three padlocks with shank diameter max. 6 mm. 

Each hand drive bearing prevents the door from opening 

when the circuit breaker is on-state or off-state by releases 

and types RP-BHD-CN40 and RP-BHD-CN41 when the circuit 

breaker is in the state switched off manually and hand drive 

lever is locked up. 

Two circuit breakers with hand drives can be provided with 

mechanical interlock or with parallel mechanical switching, see 

page E67. 

Fig. 2 - DIMENSIONS see page E29 

By a screwdriver it is possible to unlock the mechanism blocking 

the switchboard door opening with the circuit breaker 

switched on. 


Switchboard door locking in the circuit breaker state 

Type Description Colour Locking while the circuit breaker is in OFF state Protection Switched on „Switched off manually” and locked Length [mm] 

RP-BD-CK10 Hand drive unit blue no - - - - 

RP-BD-CK20 Hand drive unit blue yes - - - - 

RP-BD-CK21 Hand drive unit yellow yes - - - - 

RP-BD-CK30 Hand drive unit - side, right blue - - - - - 

RP-BD-CK31 Hand drive unit - side, left blue - - - - - 

RP-BHD-CP10 Hand drive lever black no - - - - 

RP-BHD-CP20 Hand drive lever black yes - - - - 

RP-BHD-CP21 Hand drive lever red yes - - - - 

RP-BHD-CN40 Hand drive bearing black - IP40 yes yes - 

RP-BHD-CN41 Hand drive bearing yellow - IP40 yes yes - 

RP-BHD-CN60 Hand drive bearing black - IP66 yes no - 

RP-BHD-CN61 Hand drive bearing yellow - IP66 yes no - 

RP-BHD-CH10 Extension shaft - - - - - 365 

(can be cut short) 

RP-BHD-CH20 Extension shaft - telescopic - - - - - 245 ÷ 410 

E66


MECHANICAL INTERLOCKING AND PARALLEL SWITCHING 

3P 

4P 

RP-BHD-CB10 Mechanical interlocking 

Provides mechanical interlocking of two circuit breakers/ 

switch-disconnectors so that they cannot both be tripped 

simultaneously, but only one of them at a time. Both circuit 

breakers may be turned off simultaneously. Interlocking can 

be used between two BD250 circuit breakers or between 

BD250 and BH630 circuit breakers. Both circuit breakers must 

be furnished with a hand drive (at least one with a hand drive 

unit and hand drive lever), see page E66. 

In order to use the interlocking, it is absolutely necessary to 

comply with the dimensions shown in the figure and table. 

X 

Right switching unit 

L 

BD250..3.. BD250..4.. BH630..3.. BH630..4.. 

Left switching unit 

Dimension [mm] X L X L X L X L 

BD250..3.. 105 112 140 145.5 122.5 128.5 181 185.5 

BD250..4.. 105 112 140 145.5 122.5 128.5 181 185.5 

BH630..3.. 122.5 128.5 157.5 162.5 140 145.5 185 189 

BH630..4.. 122.5 128.5 157.5 162.5 140 145.5 185 189 

RP-BHD-CD10 Mechanical parallel switching 

Provides for simultaneous switching of two circuit breakers/switch-disconnectors. 

Parallel switching can be used 

between two BD250 circuit breakers or between BD250 

and BH630 circuit breakers. Each circuit breaker must be 

equipped with a hand drive unit and at least one with a 

hand drive lever, see page E66. 

In order to use parallel switching it is absolutely necessary to 

comply with the dimensions shown in the figure and table. 

X 

Right switching unit 

BD250..3.. BD250..4.. BH630..3.. BH630..4.. 1) 

Dimension [mm] X L X L X L X L 

BD250..3.. 105 +7 164.5 -7 122.5 +7 164.5 -7 122.5 +7 164.5 -7 x x 

BD250..4.. 105 +7 164.5 -7 122.5 +7 164.5 -7 122.5 +7 164.5 -7 x x 

BH630..3.. 122.5 +7 164.5 -7 140 +7 164.5 -7 140 +7 164.5 -7 x x 

BH630..4.. 122.5 +7 164.5 -7 140 +7 164.5 -7 140 +7 164.5 -7 x x 

1) 

- Switching unit BH630..4.. (4-pole design) can only be on the right side 

Left switching unit 

E67


MECHANICAL INTERLOCKING 

Mechanical interlocking 

MB-BD-PV05 

MB-BHD-PV03 

3P 

4P 

Provides mechanical interlocking of two circuit breakers/ 

switch-disconnectors so that they cannot both be tripped 

simultaneously, but only one of them at a time. Both circuit 

breakers may be turned off simultaneously. 

Mechanical interlocking MB-BD-PV05 is intended for 

two BD250 circuit breakers. Interlocking MB-BHD-PV03 is 

intended for one BD250 circuit breaker and one BH 630. 

Circuit breakers may be in fixed, plug-in and withdrawable 

designs. 

Circuit breaker types 

BD250 

BD250 

BD250 

BH630 

Type of mechanical interlocking MB-BD-PV05 MB-BHD-PV03 

Circuit breaker placement in switchboard 

Detailed information can be found in the instructions for use, 

which you may download from our website www.oez.com. 


During the manipulation with circuit breaker with mechanical 

interlocking and motor drive, the circuit breaker may reach 

the state, in which the first attempt at switching-on by motor 

drive is unsuccessful. Switching-on is executed after repeated 

make pulse. To avoid this effect, some of the following steps 

may be done: 




according to wiring diagram, see page E74 




1) For switching-off the circuit breaker, shunt trip 

(undervoltage release) must be used. Switching-off the 

circuit breaker cannot be made by motor drive. 

2) Circuit breaker can be stored and switched on only if the 

second circuit breaker is in switch-off mode. Circuit breaker 

status indicator on motor drive is in „O“ position. Between 

storing and switching-on the circuit breaker, it is necessary 

to keep the time interval min. 100 ms. Switch „S“ must be 

disconnected. 

3) In case of infringement of these principles, the first 

switching-on of circuit breaker is unsuccessful. 

Rmin = 40 

109 

0 - 700 

45 

30 

min. 80 

E68


MOTOR DRIVES 

3P 

4P 

DIMENSIONS see page E30 

Description 

The motor drive is part of circuit breaker accessories enabling 

you to switch the circuit breaker on and off remotely. Modular 

conception of the drives enables simple mounting on the circuit 

breaker (also additionally) after the circuit breaker cavity cover 

is removed. The fixed motor can be sealed. Modeion circuit 

breakers with motor drives can be used in the most demanding 

industrial applications such as protection of standby sources, 

synchronization of two sources, etc. and anywhere it is 

necessary to ensure automated and unmanned operation of 

electrical equipment. The motor drives are equipped with 

spring storage units and due to accumulated energy to trip the 

circuit breaker, it is no problem to trip the circuit breakers within 

times up to 50 ms. Releasing of the storage unit and tripping 

of the circuit breaker is ensured by a closing coil that belongs 

to standard equipment of every motor drive. The time before 

the circuit breaker is tripped using the motor drive is 800 ms. 

This method of tripping is suitable for controlling technological 

entities. When faster circuit breaker tripping is required (e.g. 

emergency STOP push button), it is possible to use the motor 

drive in combination with undervoltage release or shunt trip. 

On the motor drive front panel there is a selector switch to 

select the drive modes with a possibility to indicate remotely the 

selector switch state. The first mode is automatic remote control 

(selector switch in position AUTO). This is the standard position 

in automatic operation. The second mode is manual control 

(selector switch position MANUAL), the motor drive does not 

need any voltage to perform its function. 

Remote switching on and off in position AUTO is carried out 

using push buttons that must be connected to the drive unit 

connector, furthermore, this position makes it is possible to 

control the circuit breaker with the push buttons on the drive 

unit front panel. 

In MANUAL mode it is possible to switch on and off using 

the green and red push buttons on the front panel of the motor 

drive cover. The function of the remote control ON push button in 

MANUAL mode is locked up, whereas the function of the remote 

control OFF push button remains active for safety reasons. 


The motor drive, apart from the circuit breaker, recognizes 

only two fixed positions. In the first position the circuit breaker 

is ON. When the circuit breaker is tripped in AUTO mode 

by overcurrent releases or auxiliary trips, then because of 

mechanical link between the circuit breaker and the drive, a 

pulse will be generated to wind up the spring of the storage 

unit automatically, depending on operator`s demand, by 

permanent closing of switch S or after the circuit breaker is 

checked by switching S switch on. In the second fixed position 

the circuit breaker is switched off and the loaded drive is ready 

to switch the breaker on after it has received the setting pulse. 

The motor drive makes possible to control the circuit breaker 

after the loss of control voltage. In MANUAL and AUTO modes, 

it is possible to wind up the storage unit by repeated rotation 

of the foldable handle. After the storage unit is wound up, it 

is possible to switch the circuit breaker on and off using the 

control buttons on the front panel of the drive. 

On the front panel there is a storage unit status indicator 

indicating locally what state the drive unit storage is in and 

whether it is possible to switch the circuit breaker on. BH 

motor drives enable to obtain a storage status signal from the 

terminal strip also remotely. BD drives have optional designs, 

alternatively with MANUAL / AUTO indication. 

The drive can be furnished with an electromechanical 

operations counter that may be installed in the drive cover or 

fixed beyond the circuit breaker space (e.g. in the switchboard 

door) or in the switchboard space using a metal holder included 

in the supply of external operations counter and its connecting 

can be done using connectors. 

The drive can be locked in off position using as many as three 

padlocks with shank diameter max. 4.3 mm. 

An OD-BHD-KT01 cover can be affixed to the drive`s turnon 

switch and then sealed. The cover prevents turning on the 

circuit breaker from the drive panel. 

Extension cable OD-BHD-KA02 has a connector on one 

side that connects to the connector on the motor drive and 

conductors on the other side that connect, for example, to a 

terminal block. 

Push button cover OD-BHD-KT01 

Extension cable OD-BHD-KA02 

Type 

MP-BD-X…, MP-BD-X…-P 

Operating voltage U e 

24, 48, 110, 230 V a.c. 

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


50 / 60 Hz 

Control pulse length for storing 400 ms ÷ ∞ 1) 

Control pulse length for switching on 

for switching off 

Time before switching on 

Time before switching off 

Frequency of cycles ON / OFF 

Frequency of cycles – instant successive ON / OFF 

Mechanical endurance 

Input power 

Protection 

AC 

DC 

24, 48, 110 V a.c.; 230 V a.c. 

24, 48, 110 V d.c.; 220 V d.c. 

20 ms ÷ 700 ms 1) 

400 ms ÷ ∞ 1) 

< 50 ms 

800 ms 

3 cycles/min 

10 cycles 

30 000 cycles 

100 VA 

100 W 

LSN 4C/1; LSN 2C/1 

LSN-DC 4C/1; LSN-DC 2C/1 

Rated operating current AUTO / MANUAL switches I e 

/ U e 

5 A/250 V a.c. 

0.5 A/250 V d.c. 

Type 

OD-BHD-KA02 

Number of conductors 12 

Conductor cross-sections S 0,35 mm 2 

Conductor lengths 

60 cm 

1) 

- for sequence of control pulses, see page E72 

E69


MOTOR DRIVES 


3P 

4P 

Circuit breaker switched on by motor drive – electrically by ON push button 

Main contacts 

Circuit breaker switched off by motor drive – electrically by OFF push button 

Main contacts 

2 1 

4 3 

6 5 

1 

0 

50 


2 1 

4 3 

6 5 

1 

0 


800 

3.4 3.3 

3.4 3.3 

1 

0 

50 


3.4 3.3 

3.4 3.3 

1 

0 


800 

14 13 

3.2 3.1 

1 

0 

40 


14 13 

3.2 3.1 

1 

0 


800 

2.4 2.3 

1 

0 


2.4 2.3 

1 

0 


2.2 2.1 

1 

0 

Early switch 

2.2 2.1 

1 

0 


1 

20 

1 

900 

10.Y2 10.Y 1 

10.Y4 10.Y 3 

0 


10.Y2 10.Y 1 

10.Y4 10.Y 3 

0 


10.Y2 10.Y 1 

10.Y4 10.Y 3 

1 

0 

20 

10.Y2 10.Y 1 

10.Y4 10.Y 3 

1 

0 

900 

1 5 

10 

50 

10 2 

500 

10 3 

5000 

10 4 

1 5 

10 

50 

10 2 

500 

10 3 

5000 

10 4 

t [ms] 

t [ms] 

Diagram 

Circuit breaker switched on and switched off by motor drive 

– electrically by ON and OFF push buttons 

L+ 

Q3 

Ovládací Control circuit obvod MP MP 


Circuit breaker/switch-disconnector states 

Switched on 

Lever positions of circuit 

breaker/switch-disconnector 

OF F 

B 

ON 

S 




(loaded) 

Motorový drive pohon 

9 7 3 4 1 5 

X3 

NC 

C 

MP 

X3 

NO 

S5 

M P 

8 6 2 

2 1 

X4 

PE N - 


Wiring diagram description 

Symbol 

MP 

M 

P 

X3 

X4 

S5*) 

YC 

B 

ON 

OFF 

S 

Description 

motor drive MP-BD-X... 

motor 



connector for external cycle counter 

switch indicating AUTO (NO-C) / MANUAL (NC-C) modes 

external cycle counter OD-BHD-PP01 

recommended wiring of the control circuits (not included in drive order) 

make push button 

break push button 

switch for energy storage 

(switched on = automatic storage, may be continuously switched on) 

Q3 

motor drive circuit breaker - see page E69 

*) For custom production it is possible to make the design with signalling of storage device state. 

E70

MOTOR DRIVES 



3P 

4P 

Tripping of the circuit breaker with a motor drive by the overcurrent release 

(switch S in switched-on state - automatic storage) 

Main contacts 

Tripping of the circuit breaker with a motor drive with a shunt trip or 

undercurrent release (switch S in switched-on state - automatic storage) 

Main contacts 

2 1 

4 3 

6 5 

1 

0 

20 


2 1 

4 3 

6 5 

1 

0 

20 


3.4 3.3 

3.4 3.3 

1 

0 

20 


3.4 3.3 

3.4 3.3 

1 

0 

20 


14 13 

3.2 3.1 

1 

0 

20 


14 13 

3.2 3.1 

1 

0 

20 


2.4 2.3 

1 

0 

30 


520 

2.4 2.3 

1 

0 

30 


520 

2.2 2.1 

1 

0 

30 

Signal switch 

520 

2.2 2.1 

1 

0 

30 

520 

1.4 1.3 

1 

0 

30 520 

Signal switch 

1 

0 

1.2 1.1 

1 

0 

30 

520 

1 

0 

1 5 

10 

50 

10 2 

500 

10 3 

5000 

10 4 

1 5 

10 

50 

10 2 

500 

10 3 

5000 

10 4 

t [ms] 

t [ms] 

Diagram 

Circuit breaker switched on by motor drive (elektrically by ON push button) 

and switched off by shunt trip 

L+ 

Q3 

Ovládací Control circuit obvod MP 

Circuit breaker switched on by motor drive (elektrically by ON 

push button) and switched off by undervoltage release 

L+ 

Q3 

Ovládací Control circuit obvod MP 

ON 

ON 

OF F 

B 

S 

OF F 

B 

S 



A1 

B1 

A1 

B1 

9 7 

X3 

3 

4 

1 

5 

9 7 

X3 

3 

4 

1 

5 

NC 

C 

NO 

S5 

M 

P 

SP-BHD-X... 

or 

SV -BHD-X... 

NC 

C 

NO 

S5 

M 

P 

SP-BHD-X... 

or 

SV -BHD-X... 

MP 

MP 

X3 

8 6 2 

X4 

2 1 

J 

A2 

B2 


X3 

8 6 2 

X4 

2 1 

J 

A2 

B2 


PE 

N - 

PE 

N - 

N - 

N - 



E71


MOTOR DRIVES 

3P 

4P 


Recommended actuating pulses 

Circuit breaker switched on/off by motor drive 

- S switch permanently closed (automatic storage) or open 

Circuit breaker switched off by overcurrent or auxiliary releases and switched 

on by motor drive – S switch permanently closed (automatic storage) 

800 50 

50 

HK 

1 

HK 

1 

0 

0 

800 

> 600 

520 

>880 

PS 

1 

RS 

1 

0 

> 1400 

>100 

0 

> 1400 

1 

0 

400- 

IMP OFF 

8 

20-700 

IMP ON 

1 

0 

20-700 

IMP ON 

t [ms] 

R OFF 

t [ms] 

Circuit breaker switched off by overcurrent or auxiliary release and 

switched on by motor drive - S switch closed only for storing up 

HK 

RS 

1 

0 

1 

0 

1 

0 

X 

X+520 

> 1400 

400- 

IMP S 

8 

>880 

>100 

50 

20-700 

IMP ON 

Description of charts 

Symbol 

Description 

HK 

main contacts 

PS 

auxiliary switch 

RS 

relative switch 

R OFF 

circuit breaker closing instant by release 

IMP S 

pulse to store up motor drive energy (generated by S switch) 

IMP ON 

make pulse for motor drive 

IMP OFF 

break pulse for motor drive 

X 

random segment of time 

R OFF 

t [ms] 


Circuit breaker/switch-disconnector states 

Lever positions of circuit 

breaker/switch-disconnector 

Switched on 




(loaded) 

E72

MOTOR DRIVES 

Wiring diagram 


3P 

4P 

Recommended wiring diagram of connecting the circuit breaker 

control circuits in withdrawable/plug-in design with motor drive 

- connecting with auxiliary relays 

- operating voltage U e 

=230 V a.c. 

Switched off by motor drive 

L 

N 

13.PS-BHD-0100 

3.2 3.1 

ON 

MCR1 

15 18 

MCR2 

15 18 

1.PS-BHD-1000 

1.4 1.3 

MCR2 

15 16 

A1 

RPR 

11 12 T 

4 

5 

3 

MCR 

1 

MP 

A2 

2 

NASTAVENÍ MCR1 SETTING: MCR1: 

Un TL IMP TL 

MON ? AST ? 

IZP 

IZP 

MON SEC MIN AST 

MCR1 MCR1 nastavit set at na 6 s6 s 

1 

A1 

T 

MCR 

2 

A2 


Un TL 

MON ? 

IZP 

MON SEC 

IMP TL 

AST ? 

IZP 

MIN AST 


S 

A3 

RPR 

A2 

OFF 

Switched off by shunt trip 

L 

N 

13.PS-BHD-0100 

3.2 3.1 

ON 

MCR1 

15 18 

MCR2 

15 18 

1.PS-BHD-1000 

1.4 1.3 

MCR2 

15 16 

A1 

RPR 

11 12 T 

4 

5 

3 

MCR 

1 

MP 

A2 

2 


Un TL IMP TL 

MON ? AST ? 

IZP 

IZP 



1 

A1 

T 

MCR 

2 

A2 


Un TL 

MON ? 

IZP 

MON SEC 

IMP TL 

AST ? 

IZP 

MIN AST 


S 

OFF 

A3 

B1 

A2 

RPR 

SV-BHD-X230 

B2 

U 


Symbol 

Description 

13.PS-BHD-0100 switch plugged in cavity 3 (first circuit breaker) 

- auxiliary switch 

23.PS-BHD-0100 switch plugged in cavity 3 (second circuit breaker) 


1.PS-BHD-1000 switch plugged in cavity 1 - signal switch 

SP-BHD-X230 undervoltage release 

SV-BHD-X230 shunt trip 

MP 

motor drive MP-BD-X230 

RPR 

instalation relay RPR-16-001-X230-SC 

MCR1, MCR2 multifunctional time relay MCR-08-001-A230 

ON 

switch on push button 

OFF 

switch off push button 

S 

switch to energy storage (switched on = automatic 

storage – may be continuously switched on) 

E73


MOTOR DRIVES 3P 4P 






=230 V a.c. 

Switched off by undervoltage release 

L 

N 

13.PS-BHD-0100 

3.2 3.1 

ON 

MCR1 

15 18 

MCR2 

15 18 

1.PS-BHD-1000 

1.4 1.3 

MCR2 

15 16 

A1 

RPR 

11 12 T 

4 

5 

3 

1 

A1 

T 

MCR 

1 

MP 

MCR 

2 

A2 

2 

A2 



Un TL IMP TL 

MON ? AST ? 

IZP 

MON SEC 

IZP 

MIN AST 


Un TL IMP TL 

MON ? AST ? 

IZP 

IZP 


MCR2 

MCR2 

nastavit 

set at 

na 

3 s 

3 s 

S 

A3 

RPR 

A2 

OFF 

A1 

SP-BHD-X230 

U< 

A2 

Recommended wiring diagram of connecting the circuit breakers control circuits 

with mechanical interlocking and motor drive (applicable for any circuit breaker) 



=230 V a.c. 

Switching off is possible only by undervoltage release or shunt trip 

L 

N 

13.PS-BHD-0100 23.PS-BHD-0100 

3.2 3.1 3.2 3.1 

ON 

MCR1 

15 18 

MCR2 

15 18 

1.PS-BHD-1000 

1.4 1.3 

MCR2 

15 16 

A1 

RPR 

11 12 T 

4 

3 

1 

A1 

T 

MCR 

1 

MP 

MCR 

2 

A2 

2 

A2 



Un TL IMP TL 

MON ? AST ? 

IZP 

MON SEC 

IZP 

MIN AST 


Un TL IMP TL 

MON ? AST ? 

IZP 

IZP 



OFF 

OFF 

A3 

A1 

B1 

RPR 

SP-BHD-X230 

U< 

SV-BHD-X230 

U 

A2 

A2 

B2 


Symbol 

Description 





1.PS-BHD-1000 switch plugged in cavity 1 - signal switch 

SP-BHD-X230 undervoltage release 

SV-BHD-X230 shunt trip 

MP 

motor drive MP-BD-X230 

RPR 

instalation relay RPR-16-001-X230-SC 

MCR1, MCR2 multifunctional time relay MCR-08-001-A230 

ON 

switch on push button 

OFF 

switch off push button 

S 

switch to energy storage (switched on = automatic 

storage – may be continuously switched on) 

E74






- connecting with control relays 


24 V a.c./d.c., 48 V a.c./d.c., 110 ÷ 230 V a.c., 110 V d.c. 

Switching off by motor drive 

Q3 

L+ 

X3 

OFF 

9 7 3 4 1 

NC 

C 

NO 

S5 

M 

S 

P 

5 

ON 

T 1 A1 K1 

OD-BHD-R... 

3 4 A2 K2 

3.PS-BHD-1000 

1.PS-BHD-0100 

3.3 1.1 

3.4 1.2 


Symbol 

Description 

MP 

motor drive - U e 

of drive must be the same as U e 

of control relay 

M 

motor 

P 


X3 


X4 


S5 


YC 

external cycle counter OD-BHD-PP01 (not included in motor drive order) 

OFF 


S 

switch for energy storage 

Q3 motor drive circuit breaker for 24 V a.c. LSN 4C/1 

for 48 V a.c. LSN 4C/1 



for 24 V d.c. LSN-DC 4C/1 




MP 

X3 

8 6 2 

X4 

2 1 

OD-BHD-R… 

control relay for 24 V a.c./d.c. OD-BHD-RX01 

for 48 V a.c./d.c. OD-BHD-RX02 

for 110÷230 V a.c. OD-BHD-RA03 

for 110 V d.c. OD-BHD-RD04 

YC 

3.PS-BHD-1000 

auxiliary switch 

PE N- 

1.PS-BHD-0100 

signal switch 

E75




Recommended wiring diagram of connecting the circuit breakers control circuits 

with mechanical interlocking and motor drive (applicable for any circuit breaker) 

- connecting with control relays 


24 V a.c./d.c., 48 V a.c./d.c., 110 ÷ 230 V a.c., 110 V d.c. 

Switching off is possible only by undervoltage release or shunt trip 

L+ 

Q3 

OFF 

OFF 

ON 

X3 

9 7 3 4 1 

5 

T 1 A1 K1 

OD-BHD-R.. 

13.PS-BHD-1000 

1.PS-BHD-0100 

3.3 1.1 

23.PS-BHD-1000 

3.3 

B1 

SV-BHD-X... 

A1 

SP-BHD-X... 

NC 

NO 

S5 

3 4 A2 

K2 

3.4 1.2 

3.4 

B2 

A2 

C 

M 

P 

MP 

X3 

8 6 2 

X4 

2 1 

YC 

PE N- 


Symbol 

Description 

MP 

motor drive - U e 



M 

motor 

P 


X3 


X4 


S5 


YC 

external cycle counter OD-BHD-PP01 

OFF 


Q3 motor drive circuit breaker for24 V a.c. LSN 4C/1 








OD-BHD-R… control relay for 24 V a.c./d.c. OD-BHD-RX01 

for 48 V a.c./d.c. OD-BHD-RX02 

for 110÷230 V a.c. OD-BHD-RA03 

for 110 V d.c. OD-BHD-RD04 

1.PS-BHD-0100 signal switch 





SP-BHD-X... undervoltage release - U e 



SV-BHD-X... shunt trip - U e 



E76

circuit breakers, switch-disconnectors

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