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    DZ47-B125 Miniature Circuit Breaker (B curve Circuit Breaker), dedicated to the electric motorcycle, and B curve MCB is mainly used for over-load and short-circuit protection in DC circuits with rated voltage of 64V-72V for single-pole and rated current of 125A. In normal condition, B curve MCB can switch infrequently the electric equipments and lighting circuits.
    DZ47-B125 B curve Circuit Breakercomplies with the standards of GB10963.1 and IEC60898-1.

    Model and meaning

    The main parameters and technical performance

    Main Specifications of DZ47-B125 B curve Circuit Breaker:
    According to the rated current: 80A, 100A, 125A.
    Rated operating voltage: 64V, 72V
    According to the form of circuit breaker instantaneous release: a. B type curve MCB (3In ~ 5In); b. C type curve MCB (5In ~ 10In).
    Mechanical electrical life: a. Electrical life: not less than 4000 times; b. Mechanical life: not less than 10000 times.

    Wiring: 50mm² and below for wire connection, wiring method is screws to tighten the wiring, the torque is 3.5N · m.

    Rated current In(A) Copper conductor nominal cross-sectional area(mm²)
    80 25
    100 35
    125 50

    Outline and installation dimensions



    Keywords: b curve Circuit Breaker,b curve MCB

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