FIELD: electrical engineering. SUBSTANCE: circuit breaker has contact system, trip-free mechanism, overcurrent release in the form of bimetal strip heated by current flowing in circuit under protection and coupled with flexible member; novelty is that flexible member is made directly on bimetal strip in the form of spherical-segment depression on active layer side of bimetal strip. EFFECT: provision for practically wasteless cutting of bimetal strip thereby reducing metal input. 3 cl, 5 dwg
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