Siemens 3VA Auxiliary Contact and Undervoltage Release. The auxiliary and alarm switches for 3VA molded case circuit breakers can be installed in all sizes of all breakers up to 630 A. All auxiliar...
Siemens 3VA Locking Devices. The available interlocking devices can be used to implement a mutual interlock between at least two 3VA molded case circuit breakers. The interlocking device only ever ...