Compact circuit breaker

Details Compact circuit breaker Compact circuit breaker

H - Electricity

01

H

H01H 73/02 (2006.01) H01H 71/56 (2006.01) H01H 3/00 (2006.01) H01H 9/28 (2006.01) H01H 9/44 (2006.01) H01H 33/76 (2006.01) H01H 71/02 (2006.01) H01H 71/04 (2006.01) H01H 71/10 (2006.01) H01H 71/24 (2006.01) H01H 71/46 (2006.01) H01H 71/50 (2006.01) H01H 71/74 (2006.01) H01H 77/10 (2006.01) H01H 89/06 (2006.01)

Patent

CA 2104007

2104007 9313537 PCTABS00024 A compact circuit breaker (10) in an enclosure (24) surrounding at least one stationary contact (38) and movable contact (40). A rotary operator (104) including rotary members (106) and a contact lever train (82) selectively causes the stationary contact (38) and the movable contact (40) to assume either a closed or an open state. A single solenoid (44) for sensing breaker current in each phase causes the rotary operator (104) to move the contacts (40) from a closed state to an open state. Additionally, the solenoid (44) for a faulted phase directly acts on a solenoid bell crank (84) to cause the contact (40) to begin to assume an open state in a trip operation, if breaker current reaches a preselected trip value in the faulted phase. The rotary operator (104) causes all contacts to move from a closed to an open position by initiating a trip operation in the contact lever trains (82).

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