Crossbar assist mechanism and electrical switching apparatus...

Details Crossbar assist mechanism and electrical switching apparatus... Crossbar assist mechanism and electrical switching apparatus...

H - Electricity

01

H

H01H 9/26 (2006.01) H01H 3/02 (2006.01) H01H 71/10 (2006.01)

Patent

CA 2588397

A crossbar assist mechanism is for a circuit breaker including a housing, a movable contact, a stationary contact, and an operating mechanism. The operating mechanism includes a crossbar, a carrier coupled to the crossbar, and a movable contact arm which is pivotably cooperable with the carrier. The movable contact is disposed on the movable contact arm. The crossbar moves the carrier and the movable contact arm, thereby moving the movable contact into and out of electrical contact with the stationary contact. The crossbar assist mechanism includes an electrically conductive member electrically interconnecting the carrier and the movable contact arm to a load terminal. A spring disposed between the crossbar and the electrically conductive member biases the crossbar from a first position corresponding to the movable contact and the stationary contact being separated, toward a second position corresponding to the movable contact being in electrical contact with the stationary contact.

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