MOLDED CASE CIRCUIT BREAKER ACTUATOR-ACCESSORY UNIT HAVING COMPONENT TOLERANCE COMPENSATION

摘要

A compact circuit breaker containing an electronic trip unit employs an actuator-accessory unit to articulate the circuit breaker operating mechanism and separate the circuit breaker contacts to interrupt current within a protected circuit. A tolerance compensating spring is attached to the actuator-accessory unit trip armature to precisely set the sepa- ration gap between the tip of the armature and the actuator-accessory trip actuator arm.