MOLDED CASE CIRCUIT BREAKER THERMAL-MAGNETIC TRIP UNIT

摘要

MOLDED CASE CIRCUIT BREAKER THERMAL-MAGNETIC TRIP UNIT A molded case circuit breaker having a thermal-magnetic trip unit is provided with a mechanical rating plug to allow a number of circuit breakers of different ampere ratings to be used within a common-sized enclosure. The rating plug interacts with a thermal-magnetic trip unit to set the circuit breaker ampere rating.