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

 

Style:
Product Price Rating Action
  • weg-umbw-489-1p-cln_4__38221.jpg

    Weg

    UMBW-4D1-13

    14362948, Replacement for UMBW-4D1-12 (14362905)

    MCB, UL489, 1-Pole, D-Curve, 13 Amp, 277VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

    $24.91
    Add to Cart
    $24.91
    Add to Cart
  • weg-umbw-489-3p-cln_1__70442.jpg

    Weg

    UMBW-4D3-30

    14405687, Replaces UMBW-4D3-32 (13642282)

    MCB, UL489, 3-Pole, D-Curve, 30 Amp (30A), 240VAC/125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

    $74.26
    Add to Cart
    $74.26
    Add to Cart
  • weg-umbw-489-2p-cln_1__48126.jpg

    Weg

    UMBW-4D2-8

    14363204, Replacement for UMBW-4D2-7 (14363203)

    MCB, UL489, 2-Pole, D-Curve, 8 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

    $50.29
    Add to Cart
    $50.29
    Add to Cart
  • weg-umbw-489-3p-cln_3__47238.jpg

    Weg

    UMBW-4D3-13

    14363258, Replacement for UMBW-4D3-12 (14363207)

    MCB, UL489, 3-Pole, D-Curve, 13 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

    $74.26
    Add to Cart
    $74.26
    Add to Cart
  • weg-umbw-489-2p-cln_2__35020.jpg

    Weg

    UMBW-4D2-60

    14048887, Replacement for UMBW-4D2-63 (14363202)

    MCB, UL489, 2-Pole, D-Curve, 60 Amp, 277/480VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

    $50.29
    Add to Cart
    $50.29
    Add to Cart

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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