Circuit breaker operator and interlock

Details Circuit breaker operator and interlock Circuit breaker operator and interlock

1984-01-24

1985-04-23

Pellinen, A. D.

Electricity: circuit makers and breakers

Interlocking

Between plural switches

200 50AA, H01H 920

Patent

active

045131805

ABSTRACT:
An operator is provided for a molded-case circuit breaker of the type in a motor controller where the circuit breaker is removably mounted on a pan brace which is held in place by a pan latch. The operator mounts on the breaker for opening and closing the breaker and for providing three interlocks. One interlock prevents withdrawal or insertion of the breaker with the operator handle in the "on" position. A second interlock prohibits closing or opening the control door except when the handle is off and a third interlock locks the operator handle in "off" position.

REFERENCES:
patent: 2344636 (1944-03-01), Quast
patent: 3122615 (1964-02-01), Chace
patent: 3311720 (1967-03-01), Johnson
patent: 3358094 (1967-12-01), Metz
patent: 3896353 (1975-07-01), Burton et al.
patent: 4104491 (1978-08-01), Doble
patent: 4206329 (1980-06-01), Jarosz
patent: 4317160 (1982-02-01), Tillson et al.
patent: 4412112 (1983-10-01), Ishikawa et al.

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