Operating mechanism of a molded case circuit breaker

Details Operating mechanism of a molded case circuit breaker Operating mechanism of a molded case circuit breaker

1993-01-21

1994-04-05

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

335 21, 335190, H01H 900

Patent

active

053009070

ABSTRACT:
An operating for a circuit breaker including a pivoting handle for controlling opening and closing of the circuit breaker and resetting of the latch after tripping. The handle bears a resetting roller which cooperates with a cam surface of the latch, which surface has a first cam section and a second cam section separated by a slope change point. The second section corresponds to the reset position and the slope of this section is chosen in such a way as to obtain a stable reset position of the handle.

REFERENCES:
patent: 3436710 (1969-04-01), Stokes
patent: 3466578 (1969-09-01), Brumfield
patent: 3947791 (1976-03-01), Hennemann
patent: 4642431 (1987-02-01), Tedesco et al.
patent: 4710738 (1987-12-01), Neel et al.
patent: 5027092 (1991-06-01), Castonguay et al.
patent: 5121092 (1992-06-01), Castonguay et al.

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