Latch assembly for static trip circuit breakers

Details Latch assembly for static trip circuit breakers Latch assembly for static trip circuit breakers

1981-03-04

1982-08-10

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Latching means

335 22, 335167, H01H 7302, H01H 7502

Patent

active

043440541

ABSTRACT:
A pivotally mounted primary latch lever carries a latch pin for latchingly engaging a cradle to sustain it in a reset position against the bias of the breaker mechanism operating springs. An intermediate latch lever, pivotally mounted to the primary latch lever, is formed with a pair of latch shoulders for respective latching engagement with a pair of latch pins associated with a pivotally mounted secondary latch lever. The geometry of the latch assembly parts and their various latching engagements are such that an exceptionally light trip initiating force on the secondary latch lever is effective in releasing the cradle from its reset position.

REFERENCES:
patent: 4001742 (1977-01-01), Jencks et al.

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