SD alarm

Scope application

The accessories of this series of circuit breakers are auxiliary functional components specially designed by our company for DZ47-60 (C45), NB7, DZ158-125 (NC) and other series of circuit breakers

Main technical parameters

product overview

SD alarm contact

Action characteristics:

When the alarm contact is opened, terminals 91 and 94 are connected; When the alarm contact is closed, terminals 91 and 92 are connected; When the alarm contact is closed and the handle is manually opened, terminals 91 and 92 are still connected; When the assembled circuit breaker trips and opens due to a fault after the alarm contact is closed, terminals 91 and 92 are disconnected, and terminals 91 and 94 are connected;