Accessories
3.2 Electromechanical accessories
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
101
Closing coil (CC) / shunt release (ST)
With the auxiliary solenoids (CC and ST), the circuit breaker can be closed (CC) and
opened (ST) remotely by electrical signals connected at the auxiliary conductor terminal
system or via communication.
Closing (breaker position CLOSED) is only possible if the closing springs are charged and
the circuit breaker is ready for closing. Opening (breaker position OPEN) is always possible.
The coils work with a current pulse ≥ 100 ms or with constant power input (100% ON time in
%).
Note
If the opening command was issued with a shunt release, the circuit breaker can be reclosed
with a closing command after the shunt release has been switched off followed by a wait
time ≥ 30 ms.
The opening command always has priority over the closing signal.
Technical specifications
AC
DC
Rated control supply voltage U
s
24 V
✓
✓
30 V
✓
✓
48 V
✓
✓
60 V
✓
✓
110 to 120 V
✓
✓
120 to 127 V
✓
✓
220 to 240 V
✓
✓
240 to 250 V
✓
✓
380 to 400 V
✓
✓
415 to 440 V
✓
✓
Operating limits
ST: 70 to 110% U
s
CC: 85 to 110% U
s
Switch-on power
300 VA
300 W
Continuous power
3.5 VA
3.5 W
Break time ST
35 ms
Make time CC
50 ms
