| 摘要 |
FIELD: electricity. ^ SUBSTANCE: automatic circuit breaker includes body with cover and mechanism of free opening with rack, lever and bracket, engagement of which with lever of free opening mechanism is done via support, which is fixed in bracket. Bracket is loaded by spring that eliminates spontaneous engagement of bracket with rack of free opening mechanism. Each pole comprises thermal and electromagnet splitters of maximum current. Electromagnetic splitter is connected to movable contact of contact system by flexible current distributor. ^ EFFECT: increased operational reliability of automatic circuit breaker, and also simplified assembly. ^ 2 cl, 2 dwg
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