Reduced pressure electrical switch

Details Reduced pressure electrical switch Reduced pressure electrical switch

H - Electricity

01

H

306/215

H01H 33/66 (2006.01) H01H 33/00 (2006.01) H01H 33/04 (2006.01) H01H 33/64 (2006.01)

Patent

CA 1177865

9 49,139 ABSTRACT OF THE DISCLOSURE An electrical switch for efficient, high contin- uous current carrying operation, with at least one movable contact for effecting current interruption. The ambient pressure within the volume defined by the electrical switch body is maintained at or is reducible during con- tact opening to between 10-1 to 102 Torr to minimize contact erosion. A preferred electrical switch is a hermetically sealed, low voltage d.c., device for shunting an electrolyte cell. The sealed switch module has a reduced pressure atmosphere of inert fill gas at a pres- sure of from 10-1 to 102 Torr.

389155

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