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_489_2pole_7__70493.jpg

    Weg

    UMBW-4C2-50

    14284932, Replacement for UMBW-4B2-50 (14361149)

    MCB, UL489, 2-Pole, C-Curve, 50 Amp, 277/480Y VAC, 125 VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg_umbw_489_1pole_18__92546.jpg

    Weg

    UMBW-4C1-1

    13634258, Replacement for UMBW-4B1-1 (14359974)

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

  • weg_umbw_489_2pole_8__11798.jpg

    Weg

    UMBW-4C2-5

    14362136, Replacement for UMBW-4B2-5 (14361085)

    MCB, UL489, 2-Pole, C-Curve, 5 Amp, 277/480Y VAC, 125 VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg_umbw_489_2pole_9__14147.jpg

    Weg

    UMBW-4C2-4

    13641166, Replacement for UMBW-4B2-4 (14361080)

    MCB, UL489, 2-Pole, C-Curve, 4 Amp, 277/480Y VAC, 125 VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg_umbw_489_2pole_11__57420.jpg

    Weg

    UMBW-4C2-25

    13641200, Replacement for UMBW-4B2-25 (14405443)

    MCB, UL489, 2-Pole, C-Curve, 25 Amp, 277/480Y VAC, 125 VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg_umbw_489_2pole_12__18969.jpg

    Weg

    UMBW-4C2-20

    13641201, Replacement for UMBW-4B2-20 (14360570)

    MCB, UL489, 2-Pole, C-Curve, 20 Amp, 277/480Y VAC, 125VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • doepke_3c_ul_primary.png

    Doepke

    3D10UL

    Circuit Breaker, UL489, 3-Pole, D-Curve, 10 Amp (10A), 10kA, Branch Circuit Protection, 480Y/277VAC, Miniature Molded Case Circuit Breaker, UL Series (D-Trip), IP20

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