Siemens SENTRON 3VL series - Page 297

Circuit diagrams
3VL IEC molded case circuit breakers
System Manual, 11/2013, 110 0110 - 02 DS 03
297
Control with undervoltage release
S0
OFF (to be provided by customer)
S01
Remote command (to be provided by customer)
S2
Alarm switch (to be provided by customer)
K1
Auxiliary contactor (to be provided by customer)
PE
Protective grounding
S1
ON (to be provided by customer)
-F1
Fuse in the control circuit
-F2
Fuse in the control circuit
U<
Undervoltage release
Figure 13-4 Motorized operating mechanism without stored energy mechanism for VL160X to
VL1600 with undervoltage release
Note
Switching the circuit breaker off automatically
A separate alarm switch contact (7
-8) can be connected for switching off the circuit breaker
automatically. Automatic switching on of the molded case circuit breaker must be prevented,
otherwise after a trip
ping event it may automatically switch to short-circuit.