FIELD: electricity.
SUBSTANCE: according to the invention, a circuit breaker includes outer casing (2) that contains for each pole at least one fixed contact (10) and at least one movable contact (20), which are capable for mutual connection and disconnection. The device also includes control mechanism (30) containing support frame (31) that supports a kinematic chain that is in-line connected to the movable contact so that the latter can be connected to or disconnected from the fixed contact. The support frame includes a pair of sides (134) connected by means of the first transverse connection section (21) and an additional connection device, which determines an additional transverse connection section in the position that is different from the position of the first transverse connection section.
EFFECT: creation of a compact and reliable circuit breaker, the internal structure of which provides for the possibility of a simpler procedure and assembly time.
9 cl, 29 dwg
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