Electrical safety device

Details Electrical safety device Electrical safety device

H - Electricity

01

R

348/24

H01R 13/713 (2006.01) H02H 3/33 (2006.01)

Patent

CA 1311827

ABSTRACT An earth leakage circuit breaker has a socket for connecting an appliance to be protected. A plug inserted in the socket depresses a plunger, tilting a cam which acts through a follower to momentarily close a relay, thus resetting the circuit breaker. When the appliance is unplugged, the cam returns to its normal position, by-passing the follower but closing a pair of test contacts. The reset and test functions are thus carried out without the need to separate buttons, and at times when the load is disconnected, so that the circuit breaker contacts do not break load current when they open or close during resetting or testing.

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