Tripping device reset arrangement

Details Tripping device reset arrangement Tripping device reset arrangement

1996-03-29

1997-09-23

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Plural magnets or flux sources

335172, H01H 900

Patent

active

056709234

ABSTRACT:
A field-installable circuit breaker trip unit conversion kit in the form of a flux shifter unit that interfaces with the circuit breaker operating mechanism is installable without dismantling the circuit breaker components. The flux shifter unit responds to an electronic trip unit to articulate the circuit breaker operating mechanism and separate the circuit breaker contacts upon occurrence of an overcurrent condition. Expansion springs achieve tolerance take-up for different operating mechanism assemblies to correctly interface with the associated electronic trip unit.

REFERENCES:
patent: 3073936 (1963-01-01), Baird
patent: 3693122 (1972-09-01), Willard
patent: 3761778 (1973-09-01), Willard
patent: 4672501 (1987-06-01), Bilac et al.
patent: 4808952 (1989-02-01), Berner et al.
patent: 4931758 (1990-06-01), Bagalini
patent: 5027093 (1991-06-01), Palmer et al.

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