Push-to-trip high-amp circuit breaker

Details Push-to-trip high-amp circuit breaker Push-to-trip high-amp circuit breaker

1990-05-24

1991-04-02

Broome, H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

With bimetallic elements

337 68, H01H 7116

Patent

active

050049941

ABSTRACT:
A low voltage high-amp circuit breaker (20) having a substantially reactangular bimetallic bistable element (41). The bistable element is attached to have one end move from a first normal electrically conductive position to a second non-electrically conductive position. The manual reset circuit breaker includes a manual reset lever (29) and a non-conductive heat resistant extension blade (64) connected to the reset lever via a rotatable shaft (56). The extension blade being positioned adjacent the moveable end of the bistable element and when the element is moved to its second position, the blade is moved to prevent the element from returning to its first conductive position until the circuit breaker is manually reset. A push-to-trip button (80) pushes plate (88) downward causing fingers (84) to move upward lifting bracket (92) to deform bistable element (41) placing the breaker in an open circuit condition.

REFERENCES:
patent: 2720416 (1955-10-01), Raleigh
patent: 3723929 (1973-03-01), Sitar
patent: 4814739 (1989-03-01), Moldovan

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