Contact arrangement for electrical apparatus

Details Contact arrangement for electrical apparatus Contact arrangement for electrical apparatus

H - Electricity

01

H

H01H 21/18 (2006.01) H01H 21/20 (2006.01) H01H 33/16 (2006.01) H01H 31/28 (2006.01) H01H 33/12 (2006.01)

Patent

CA 2152700

A contact arrangement is provided for engaging first and second stationary contacts in a predetermined sequential manner, for example so as to appropriately provide a pre-insertion function via the first contact and prior to engagement of the second contact that provides a circuit-closing function in a main current path. In a preferred arrangement, the moving contact of the contact arrangement includes first and second contact surfaces that are spaced apart and parallel to each other, the first and second contact surfaces of the moving contact sequentially engaging the first and second stationary contact surfaces respectively during closing movement. In a specific embodiment, the first and second contact surfaces are provided by a unitary contact member having a circular cross-section, this arrangement being especially suited for a switch where the contact member is rotated as it moves to the closed position.

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