Operating mechanism of a low voltage electric circuit breaker

Details Operating mechanism of a low voltage electric circuit breaker Operating mechanism of a low voltage electric circuit breaker

H - Electricity

01

H

306/284

H01H 71/52 (2006.01) H01H 71/10 (2006.01)

Patent

CA 1218399

Abstract.- OPERATING MECHANISM OF A LOW VOLTAGE ELECTRIC CIRCUIT BREAKER. A multi-pole circuit breaker having a molded case and a contact operating mechanism supported in said case. The mechanism is controlled by a handle and a trip device. To obtain the reset of the trip hook when said trip device has opened the contacts, a rocker secured to the handle engages a drive lever forming an extension of the upper link of a toggle Joint of said mechanism. The catch of the trip device is biased into an intermediate balanced locking position by means of a spring and is positioned onto a pivot pin by means of radial projection insides the bore at the catch which fits into a matching groove of the pin.

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