Siemens SENTRON 3WA1 - Page 241

Accessories
4.3 Control and signaling accessories
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
239
Shunt trip (ST/ST-COM/ST2)
Shunt trip
Rated control supply voltage U
S
24 … 30 V DC
48 … 60 V DC
110 … 127 V AC / 110 … 125 V DC
208 … 240 V AC / 220 … 250 V DC
Operating range (acc. to IEC 60947-1)
85 ... 110% U
S
Extended operating range for battery operation
85 ... 126% U
S
Integrated freewheeling diode
✓
100% OP
5% OP
Switch-on power
AC / DC
24 … 30 V DC
40 VA / 40 W
200 VA / 200 W
48 … 60 V DC
110 … 127 V AC /
110 … 125 V DC
250 VA / 250 W
208 … 240 V AC /
220 … 250 V DC
Continuous power AC / DC
8 VA / 8 W
--
Minimum command duration at 100% U
S
60 ms
60 ms
Maximum command time at 100% U
S
--
2000 ms
Opening time of the circuit breaker at 100% U
S
80 ms
50 ms
Fuse protection of the control circuit
Smallest permissible
DIAZED fuse, gL,
slow-response
24 … 30 V DC
2 A
10 A
48 … 60 V DC
110 … 127 V AC /
110 … 125 V DC
1 A
4 A
208 … 240 V AC /
220 … 250 V DC
1 A
2 A
Miniature circuit
breaker with C
characteristic
24 … 30 V DC
2 A
10 A
48 … 60 V DC
110 … 127 V AC /
110 … 125 V DC
1 A
4 A
208 … 240 V AC /
220 … 250 V DC
1 A
2 A