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    100A DC Circuit Breaker, 1/2/3/4 Pole

    5 out of 5 based on 1 reviews | Write a review
    Good price 100A DC circuit breaker for sale online. Installation method of smart circuit breaker is fix type or insertion type. 100 amp DC circuit breaker with extremely high breaking capacity and currentlimiting characteristics. High speed DC circuit breaker often used in transformers with strict voltage requirements and frequent shifting.
    SKU: ATO-DCCB-100A
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    100 amp DC circuit breaker can be fixed to the bus bar on the top or bottomside. Working temperature of DC circuit breaker between -25 ℃ and 50 ℃.


    • Extremely high breaking capacity and current limiting characteristics.
    • Available for installation in standard busbars.
    • Dual function terminals on top and bottom sides (lifting type / open type).
    • Optionally fixed to the bus bar on the top or bottom side.
    • With isolation function, can be used as the main switch.
    • Wiring terminal guidance to prevent mis-wiring.


    Electrical Parameter Model FXBN1/BM1-100A
    Current 100 A
    Rated Voltage DC 250V, 500V, 750V, 1000V
    Current Shell Frame 125A
    Numbers of Pole 1 pole , 2 pole , 3 pole , 4 pole
    Breaking Capacity 25 KA
    Rated Insulation Voltage 1000V
    Rated Impulse Withstand Voltage 8 kV
    Total Break Time 20 ms
    Installation Location any location
    Allowable Ambient Temperature -25 ℃ ~ 50 ℃
    Protection Level IP20
    Avaliable with Accessories auxiliary, alarm, diverter, manual operation, elecrtic operation, mechanical interlock
    Flying Arc Distance ≥50 mm
    Instantaneous Action Valve 12 ln
    Installation Method fixed, insertion type
    Standard IEC60947-2x IEC60947-K GB14048.R GB14048.2
    Machinery Parameter Mounting Method IEC standard track 35 mm
    Enclosure Protection Level IP20
    Dual Function Terminals on Both Sides open type / lifting type
    Terminal Protection finger touch and hand touch safety
    Terminal Wiring Capacity 1-25 mm²
    Termianal Screw Tightening Torque 2-2.4 Nm
    Bus Bar Thickness 0.8-2 mm
    Mounting Angle functionaity is independent of location

    Dimension (Unit: mm)

    DC circuit breaker dimension

    Wiring Diagram

    Wiring diagram DC circuit breaker


    100A DC Circuit Breaker Details

    Tips: How Does DC Circuit Breaker Work?

    As their name suggests, direct current (DC) circuit breakers protect electrical devices that operate on direct current. The significant distinction between direct current and alternating current is that the voltage output in DC is constant. In contrast, the voltage output in alternating current (AC) cycles several times each second.

    Existing reviews of 100A DC Circuit Breaker, 1/2/3/4 Pole
    For my power system
    I work in a power plant. I bought this DC circuit breaker for my power system. This circuit breaker works very well. I have used it for half a month. Other colleagues also think it is very practical.
    From: Shaun | Date: 02/04/2023
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