Circuit Breakers

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector

 

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    Weg

    UMBW-4C3-20

    13641894, Replacement for UMBW-4B3-20 (14361438)

    MCB, UL489, 3-Pole, C-Curve, 20 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • Available Now!
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    Available Now!

    Weg

    UMBW-1D3-50

    14361381

    MCB, UL1077, 3-Pole, D-Curve, 50 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • Available Now!
    weg_umbw_489_1pole_16__74784.jpg
    Available Now!

    Weg

    UMBW-4C1-15

    14361805, Replacement for UMBW-4B1-15 (14360169), UMBW-4B1-16 (14360170) and UMBW-4C1-16 (13634520) | Limited Stock Savings: 1 unit available at this price

    MCB, UL489, 1-Pole, C-Curve, 15 Amp, 277VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series This is the Recommended Replacement for UMBW-4B1-15 (14360169), UMBW-4B1-16 (14360170) and UMBW-4C1-16 (13634520)

  • Available Now!
    weg_umbw_489_2pole_6__58213.jpg
    Available Now!

    Weg

    UMBW-4C2-6

    13641167, Replacement for UMBW-4B2-6 (14363609)

    MCB, UL489, 2-Pole, C-Curve, 6 Amp, 277/480Y VAC, 125 VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

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    weg_umbw_489_1pole_17__61576.jpg
    Available Now!

    Weg

    UMBW-4C1-10

    13634523, Replacement for UMBW-4B1-10 (14360098)

    MCB, UL489, 1-Pole, C-Curve, 10 Amp, 277VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • Available Now!
    weg_umbw_489_3pole_30__84632.jpg
    Available Now!

    Weg

    UMBW-4D3-10

    13642279 | Limited Stock Savings: 1 unit available at this price

    MCB, UL489, 3-Pole, D-Curve, 10 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • Available Now!
    weg_umbw_1077_3pole_28__95805.jpg
    Available Now!

    Weg

    UMBW-1D3-20

    14361310

    MCB, UL1077, 3-Pole, D-Curve, 20 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • Available Now!
    weg_umbw_1077_2pole_27__27395.jpg
    Available Now!

    Weg

    UMBW-1D2-6

    14361180, | Limited Stock Savings: 6 units available at this price

    MCB, UL1077, 2-Pole, D-Curve, 6 Amp, 277/480Y VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

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    Available Now!

    Doepke

    2D20UL

    Circuit Breaker, 2-Pole, D-Curve, 20 Amp, UL489, 10kA, Branch Circuit Protection, Molded Case

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    doepke_2c05_primary.png
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    Doepke

    2D15UL

    This is the Recommended Replacement for 2DU15L

    Circuit Breaker, 2-Pole, D-Curve, 15 Amp, UL489, 10kA, Branch Circuit Protection, Molded Case

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    Available Now!

    Doepke

    3D50UL

    Replaced 3DU50L

    MCCB, UL489, 3-Pole, D-Curve, 50 Amp, 10kA, 240VAC, 50/60Hz, 10kA Short Circuit Interrupting Capacity Protection, DIN Rail Mounting, 17.5mm Width, Thermal Magnetic, Miniature Molded Case Circuit Breaker, IP20

  • Available Now!
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    Available Now!

    Weg

    UMBW-4D2-15

    14363103, Replacement for UMBW-4D2-16 (13642042)

    MCB, UL489, 2-Pole, D-Curve, 15 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

A circuit breaker will interrupt the flow of current in an electrical circuit, safeguarding surrounding electrical components and wiring by preventing circuit overloads and short circuits.

a.k.a. MCB, MCCB, molded case breaker, supplementary protection, UL1077, UL489, UL508, MMP, manual motor protector