Speedfax 2017

3VA Molded Case Circuit Breakers
3VA Accessory Electrical Requirements
Revised on 10/15/20
Technical data
Shunt trip/undervoltage electrical requirements
Shunt trip left
STL
Shunt trip
flexible STF
Undervoltage
releases UVR
Universal
release UNI
7
MOLDED CASE
CIRCUIT BREAKERS
Power consumption U e 12 V DC W 50 -- -- --
24 50 V AC/60 Hz VA 50 -- -- --
24 ... 30 V DC W 7 ... 50 -- -- --
48 ... 60 50 V AC/60 Hz VA 15 ... 20 -- -- --
48 ... 60 V DC W 20 ... 30 -- -- --
110 ... 127 50 V AC/60 Hz VA 30 ... 40 -- -- --
110 ... 127 V DC W 30 ... 40 -- -- --
208 ... 277 50 V AC/60 Hz VA 16 ... 35 -- -- --
220 ... 250 V DC W 28 ... 35 -- -- --
380 ... 600 50 V AC/60 Hz VA 10 ... 30 -- -- --
24 50 V AC/60 Hz VA -- 300 -- --
48 ... 60 50 V AC/60 Hz VA -- 340 ... 600 -- --
110 ... 127 50 V AC/60 Hz VA -- 500 ... 650 -- --
208 ... 277 50 V AC/60 Hz VA -- 360 ... 650 -- --
380 ... 500 50 V AC/60 Hz VA -- 330 ... 600 -- --
600 50 V AC/60 Hz VA -- 300 -- --
12 ... 250 V DC W -- -- < 2.5 --
24 ... 230 50 V AC/60 Hz VA -- -- < 2 --
380 ... 480 50 V AC/60 Hz VA -- -- < 2.5 --
12 V DC (Cat II;
PELV/SELV)
24 V DC (Cat II;
PELV/SELV)
48 V DC (Cat II;
PELV/SELV)
W -- -- -- UVR: < 2.5
SHT: 20
W -- -- -- UVR: < 2.5
SHT: 20
W -- -- -- UVR: < 2.5
SHT: 20
Rated impulse withstand
U imp kV 6 4 0.5
voltage
Making current I max at V 1.5 A/24 V AC 18 A/24 V AC 5 mA/480 V 1.5 A/24 V
Maximum tripping time ms < 10
Service life Electrical trips 8500
Mechanical switching cycles of the circuit breaker 25000
Priority over other control
Given
signals
Degree of protection Lid of the accessories compartment closed IP40
Lid of the accessories compartment open IP 20
Minimum signal duration ms 40 40 -- 40
Response voltage shunt
trip
Undervoltage release
response voltage
Pick-up (circuit
breaker trips)
Pick-up (circuit
breaker can be
switched on)
Pick-up (circuit
breaker trips)
Us/V % 70 ... 110 -- 70 ... 110
Us/V % -- -- 85 ... 110
Us/V % -- -- 35 ... 70
Tripping frequency Trips per hour Unlimited 120 Unlimited
Can be used for electrical
interlocking of molded case
circuit breakers
No No Yes
7-108
Siemens Industry, Inc. SPEEDFAX Product Catalog