Molded case circuit breaker trip indicator unit

Details Molded case circuit breaker trip indicator unit Molded case circuit breaker trip indicator unit

1987-10-19

1989-01-31

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 13, H01H 7312

Patent

active

048019062

ABSTRACT:
An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained within the circuit breaker cover from the environment. A trip signal indicator is one such accessory component which can be field-installed without affecting the integrity of the circuit breaker overcurrent protection components.

REFERENCES:
patent: 3171927 (1965-03-01), Klein
patent: 3562733 (1971-02-01), Murphy
patent: 4297663 (1981-10-01), Seymour et al.
patent: 4589052 (1986-05-01), Dougherty
patent: 4622444 (1986-11-01), Kandatsu et al.
patent: 4649455 (1987-03-01), Scott
patent: 4679016 (1987-07-01), Ciarcia et al.
patent: 4679019 (1987-07-01), Todaro et al.
patent: 4700161 (1987-10-01), Todaro et al.

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