Trip assembly for a circuit breaker

Details Trip assembly for a circuit breaker Trip assembly for a circuit breaker

1984-01-23

1985-10-29

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 37, 361 37, H01H 7512

Patent

active

045502986

ABSTRACT:
A temperature-responsive trip assembly for a primary circuit breaker, the assembly including a permanent magnet member biased to a circuit opening position and pertinent to engage a thermally-responsive metallic element having a predetermined Curie temperature, the element being formed of a nickel-iron alloy having approximately 32% nickel and being arranged in edge-abutting relation to the magnet.

REFERENCES:
patent: 3750064 (1973-07-01), Kato et al.
patent: 4435690 (1984-03-01), Link et al.
patent: 4454491 (1984-06-01), Martus

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