Electronic trip unit conversion kit for high ampere-rated circui

Details Electronic trip unit conversion kit for high ampere-rated circui Electronic trip unit conversion kit for high ampere-rated circui

1996-06-18

1998-09-08

Gellner, Michael L.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Plural magnets or flux sources

335167, 335172, 335176, 335178, 335179, 335 21, 200309, 200400, H01H 900

Patent

active

058050418

ABSTRACT:
A field-installable circuit breaker trip actuator unit includes a flux shifter unit that interfaces with the circuit breaker operating mechanism and 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. A reset arrangement allows the trip actuator unit to be automatically reset upon completion of the contact separation process.

REFERENCES:
patent: 3073936 (1963-01-01), Baird
patent: 3761778 (1973-09-01), Willard
patent: 4536726 (1985-08-01), Hideo
patent: 4672501 (1987-06-01), Bilac et al.
patent: 5122771 (1992-06-01), Panus et al.
patent: 5646586 (1997-07-01), Castonguay et al.

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