Circuit breaker enclosure

Details Circuit breaker enclosure Circuit breaker enclosure

H - Electricity

01

H

347/37

H01H 9/22 (2006.01) H01H 9/20 (2006.01)

Patent

CA 1094675

Abstract of the Disclosure The following specification describes a circuit breaker enclosure having a cover, which is latched closed by spring biased latch handles. The handles and cover move in response to gas pressure for relieving the pressure generated on tripping of the circuit breaker. The latch handles are arranged to point outwardly of the enclosure, when open, to provide a clear visual indication of their being open. The circuit breaker handle and enclosure handle are directly engaged with a common pivot pin for synchronous movement to enable the enclosure handle to indicate the trip condi- tion of the breaker. When the cover is open, the handles are interlocked against movement to an ON position by a biased pivot- able interlock plate. The cover in turn is latched closed through the interlock plate and a breaker handle plate, when the circuit breaker enclosure handles are in the ON position. A pair of spaced edge projections on the enclosure wall engage the cover sealing gasket to avoid a permanent compression set in the gasket.

310852

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