Multi-function solid state trip unit with trip indicating means

Details Multi-function solid state trip unit with trip indicating means Multi-function solid state trip unit with trip indicating means

1975-08-25

1977-01-18

Moose, Harry

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

317 31, 340253R, H02H 700

Patent

active

040042014

ABSTRACT:
A multi-function solid state trip unit for automatic electric circuit breakers incorporates indicators functioning to signal which of the functions, e.g., short circuit, overload or ground fault, was operative in tripping the circuit breaker. A bypass circuit is included to insure that tripping of the circuit breaker is not jeopardized by failure of the indicators.

REFERENCES:
patent: 2341932 (1944-02-01), MacCarthy
patent: 3171112 (1965-02-01), Martin
patent: 3573556 (1971-04-01), Zocholl
patent: 3660724 (1972-05-01), Berger
patent: 3735215 (1973-05-01), Conrad
patent: 3803455 (1974-04-01), Willard

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