Circuit breaker with self contained adjustable bimetal

Details Circuit breaker with self contained adjustable bimetal Circuit breaker with self contained adjustable bimetal

H - Electricity

01

H

306/160

H01H 71/16 (2006.01) H01H 71/74 (2006.01)

Patent

CA 1144215

CIRCUIT BREAKER WITH SELF CONTAINED ADJUSTABLE BIMETAL Abstract An electric circuit breaker including a U-shaped bimetal operably associated with a trip crossbar to effect rotation of the crossbar and subsequent opening of breaker contacts in response to heating of the bimetal to a predetermined temperature by the passage of an electrical current of a selected magnitude therethrough. The bimetal provides self-contained adjustment through the use of a calibration screw theaded into the lower leg of the bimetal which exerts force through an insulating member to the upper leg of the bimetal permitting ready calibration of the bimetal according to ampere rating of the particular circuit breaker.

384910

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