Low voltage circuit breaker with multiple contacts for high...

Details Low voltage circuit breaker with multiple contacts for high... Low voltage circuit breaker with multiple contacts for high...

H - Electricity

01

H

H01H 9/38 (2006.01) H01H 9/46 (2006.01) H01H 1/22 (2006.01) H01H 73/18 (2006.01)

Patent

CA 2053516

To improve the electrical withstand of a low voltage circuit breaker for high currents having multiple contacts of the same length and a stationary arc guiding horn having an intermediate edge extending over a short distance in the direction of movement of the front extensions of the contact fingers, a stationary arcing contact is arranged between the edge of the arc guiding horn and the stationary main contact. The stationary main contact is designed to cooperate with a movable arcing contact of at least one contact finger. At the beginning of the opening travel, closing of the arcing contacts takes place before the main contacts separate. The stationary arcing contact is located in the immediate vicinity of the edge.

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