CIRCUIT BREAKER ACCESSORY RESET SYSTEM

摘要

An accessory (66) includes a trip arm (104) biased by a spring (106) to pivot in a clockwise direction about a trip arm pivot (120). A latch (110) is arranged to pivot about a latch pivot (132) and has the trip arm (104) acting on a latch surface (126) on the latch (110) to bias the latch (110) in a counter clockwise direction about the latch pivot (132). An electromechanical device (102) including a plunger (130) acts on the latch (110) pulling it clockwise about he latch pivot (132). When a signal is provided to the electromechanical device (102), the plunger (130) is released allowing the trip arm (104) to pivot clockwise about the trip arm pivot (120) due to the spring (106) and actuates the operating mechanism (30). To reset the trip arm (104) and the latch (110), a reset lever (108) is arranged to pivot about the latch pivot (132). The reset lever (108) includes a tab portion (72) configured for interfacing the operating mechanism (30), and a drive portion (142) for interfacing the trip arm (104). This, when the operating mechanism (30) is reset, a portion extending from an operating handle (28) interfaces the tab portion (72) to pivot the reset lever (108) clockwise about the latch pivot (132). The drive portion (142) interfaces the trip arm (104) to drive the trip arm (104) counterclockwise about the trip arm pivot (120).