Disconnect switch

Details Disconnect switch Disconnect switch

1974-10-21

1976-05-18

Schaefer, Robert K.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

200144R, 200153G, H01H 164

Patent

active

039580954

ABSTRACT:
A three-pole disconnect switch includes a crossbar which is rotatably mounted to a housing and pivots three movable contact blades between opened and closed positions. Each movable contact blade is removably mounted to the cross-bar and makes slidable electric contact with a connector. When in its closed position, each movable contact blade makes electrical connection with a stationary line contact. Modular arc chutes are slidably received in mating cavities formed in the housing above each set of contacts and a pair of auxiliary contact cartridges are received in chambers formed in the housing between the main contacts. A trip mechanism is mounted to the side of the housing and couples one end of the crossbar to a manually operated handle.

REFERENCES:
patent: 678178 (1901-07-01), Hewlett
patent: 2281052 (1942-04-01), Samzelius
patent: 2743338 (1956-04-01), Graybill
patent: 2874252 (1959-02-01), Wenzel et al.
patent: 3496319 (1970-02-01), Norden
patent: 3632935 (1972-01-01), Stegmaier
patent: 3684849 (1972-08-01), Zubaty
patent: 3840717 (1974-10-01), Pekrul et al.

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