Molded case circuit breaker low friction latch assembly

Details Molded case circuit breaker low friction latch assembly Molded case circuit breaker low friction latch assembly

1992-07-17

1993-06-15

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Latching means

335 21, 335172, H01H 920

Patent

active

052203034

ABSTRACT:
A circuit breaker latch assembly eliminates the need for polishing the opposing latch surfaces to reduce static surface friction and lower the latching force. The end of the circuit breaker cradle operator is offset relative to the restraining surface of the armature-latch to reduce the static friction that must be overcome to move the armature-latch away from the cradle operator. Subsequent release of the cradle operator then allows the circuit breaker operating mechanism to separate the circuit breaker contacts upon the occurrence of predetermined overload current conditions.

REFERENCES:
patent: 4119935 (1978-10-01), Wien et al.
patent: 4513268 (1985-04-01), Seymour et al.
patent: 4698903 (1987-10-01), Ciarcia et al.
patent: 4789848 (1988-12-01), Castonguay et al.

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