Retaining assembly for a circuit breaker contact system

摘要

A moveable contact arm assembly includes a moveable contact arm having a moveable contact thereon. Also included is a carrier assembly operatively coupled to the moveable contact arm. Further included is a first end plate operatively coupled to the carrier assembly and a bottom bracket operatively coupled to the first end plate. Yet further included is a first latch member coupled to the bottom bracket, the first latch member comprising a first guiding surface and defining a first recess portion. Also included is a guide pin extending from the carrier assembly and in contact with the first guiding surface of the first latch member during movement of the moveable contact arm assembly. Also included is a first stop pin extending from the carrier assembly and disposed in the first recess portion of the first latch member in the blow open condition of the circuit breaker.

主权项

1. A retaining assembly of a circuit breaker contact system comprising:
a fixed contact; at least one moveable contact arm assembly comprising a moveable contact arm having a moveable contact thereon and moveable with the moveable contact arm, the moveable contact arm moveable to position the moveable contact into engagement with the fixed contact to define a closed condition and out of engagement with the fixed contact to define a blow open condition; a carrier assembly operatively coupled to the moveable contact arm; a first end plate operatively coupled to the carrier assembly; a bottom bracket operatively coupled to the first end plate; a first latch member pivotably coupled to the bottom bracket, the first latch member comprising a first guiding surface and defining a first recess portion; a guide pin operatively coupled to, and extending from, the carrier assembly, the guide pin in contact with the first guiding surface of the first latch member during movement of the moveable contact arm assembly from the closed condition to the blow open condition; and a first stop pin operatively coupled to, and extending from, the carrier assembly, the first stop pin disposed in the first recess portion of the first latch member in the blow open condition of the circuit breaker.