Electrical Interlocking Of Two 3Va Molded Case Circuit Breakers With Undervoltage Releases - Siemens 3VA1 100 A Manual

6.1.3.2 Electrical interlocking of two 3VA molded case circuit breakers with undervoltage
releases
Q 1
UVR
1
AUX 1 Auxiliary switch in molded case circuit breaker 1
Q 2
UVR
2
AUX 2 Auxiliary switch in molded case circuit breaker 2
Note
The undervoltage release UVR must not be connected to phases L1 and L3 for 690 V AC
applications. In this case, it is connected to phase L1 and the N conductor or to a control
voltage supply up to maximum 480 V AC.
3VA molded case circuit breakers
Manual, 04/2015, A5E03603177010-02
Molded case circuit breaker 1
Undervoltage release in molded case circuit breaker 1
Molded case circuit breaker 2
Undervoltage release in molded case circuit breaker 2
Technical specifications
6.1 Circuit diagrams
445