Circuit breaker with distribution lug terminal having trapped in

Details Circuit breaker with distribution lug terminal having trapped in Circuit breaker with distribution lug terminal having trapped in

1993-08-05

1996-01-30

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With housing or support means

335 8, H01H 6702

Patent

active

054883377

ABSTRACT:
A molded insulator has a bottom wall, opposed sidewalls, and a transverse end wall extending between the sidewalls but spaced from the end of the bottom wall to define an opening in the bottom. A distribution lug is inserted from an open end of the insulator against the end wall, and under projections on inner surfaces of the sidewalls to trap the insulator against the end wall, and under projections on inner surfaces of the sidewalls to trap the insulator against up and down movement. The lug is attached to a circuit breaker terminal at the opening in the bottom to trap the end wall between the lug and the circuit breaker, blocking withdrawal of the insulator. A depending rib provides distal end support, while lateral ribs abut edges of barriers in the breaker housing to maintain the assembly properly aligned for electrical spacing.

REFERENCES:
patent: 2654815 (1953-10-01), Laverty
patent: 3238329 (1966-03-01), Russo
patent: 4809132 (1989-02-01), Palmieri et al.
patent: 4975667 (1990-12-01), Morgan et al.
patent: 5117211 (1992-05-01), Morgan et al.
Technical Information Publication TK, dated Oct. 1, 1992.
DU-211, CH20M, Cutler-Hammer Power Distribution Products Flyer Oct., 1992.
Square D "Digest", Dec. 1992, cover and p. 5-31 Circuit Breakers, Molded Case-Lugs.

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