Vacuum Circuit Breaker "ABB" VD4

These new VD4 circuit breakers exemplify ABBs proven vacuum interrupter engineering and manufacturing technology, as well as the superior design standards employed in the production of circuit breakers.

VD4 medium voltage circuit breakers use vacuum interrupters embedded in the poles. This construction technique makes the poles of the circuit breaker particularly sturdy and protects the interrupter from shocks, dust and condensation. The vacuum interrupter houses the contacts and forms the interruption chamber.