Operating mechanism for a low voltage electrical circuit breaker

Details Operating mechanism for a low voltage electrical circuit breaker Operating mechanism for a low voltage electrical circuit breaker

1986-10-16

1988-04-26

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Latching means

335 15, 335123, H01H 920

Patent

active

047407700

ABSTRACT:
A mechanism for a circuit breaker includes a support lever insulated from a contact arm and a trip lever supported by a plate fitted with limited swivelling on a pivot. A mechanical link arranged between a toggle-joint and the contact arm includes a latching stop fixed on the plate. The stop is formed by a notch cooperating with a step of the trip lever to push the end of a toggle rod back to a retracted unlatched positon, as soon as the trip lever is actuated to the tripped position. The support lever is equipped with a locking arm having a sloping part cooperating with a pawl of the handle to form a high-speed contact closing device.

REFERENCES:
patent: 3774129 (1973-11-01), Sugiyama
patent: 4023127 (1977-05-01), Mune

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