CIRCUIT BREAKER SAFETY INTERLOCK UNIT

摘要

41PR-6778 CIRCUIT BREAKER SAFETY INTERLOCK UNIT The position of the contacts within industrial-rated circuit breakers is externally ascertained by means of an auxiliary switch-contact position verifier accessory. A viewing aperture in the circuit breaker accessory cover provides visual access to a color-coded shutter that forms part of the auxiliary switch accessory and operates off the circuit breaker crossbar assembly. A safety interlock unit attached to the exterior surface of the circuit breaker cover interacts with the shutter to prevent the circuit breaker from being turned on. The interlock unit also interacts with the circuit breaker trip-test button to articulate the circuit breaker operating mechanism.