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-489-1p-cln_15__84819.jpg

    Weg

    UMBW-4C1-50

    14361949, Replaces UMBW-4B1-50 (14360409)

    MCB, UL489, 1-Pole, C-Curve, 50 Amp (50A), 120VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • noark_-_m1s150t22l_-_mccb__68588.jpg

    Noark

    M1S150T22L

    1102165

    MCCB, UL489, M1S, 2 Pole, 150 Amp (150A), 50kA @ 240VAC, 35kA @ 480VAC, 14kA @ 600VAC, 20kA @ 600VDC, 150 A Frame Size, Adjustable Thermal/Fixed Magnetic Trip, Lug Line /Load Side Connection, Molded Case Circuit Breaker

  • weg-umbw-1077-1p-cln_13__70912.jpg

    Weg

    UMBW-1C1-60

    14353618, Replacement for UMBW-1B1-60 (14361539) and UMBW-1B1-63 (14351767)

    MCB, UL1077, 1-Pole, C-Curve, 60 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg-umbw-1077-1p-cln_14__41150.jpg

    Weg

    UMBW-1C1-13

    14353578, Replacement for UMBW-1B1-12 (14361510), UMBW-1B1-13 (14361511) and UMBW-1C1-12 (14353527)

    MCB, UL1077, 1-Pole, C-Curve, 13 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg-umbw-489-1p-cln_16__97158.jpg

    Weg

    UMBW-4C1-40

    14361851, Replacement for UMBW-4B1-40 (14360283)

    MCB, UL489, 1-Pole, C-Curve, 40 Amp, 120VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg-umbw-1077-1p-cln_15__69192.jpg

    Weg

    UMBW-1B1-60

    14361539, Limited Availability, Replaced by UMBW-1C1-60 (14353618)

    MCB, UL1077, 1-Pole, B-Curve, 60 Amp, 277VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • lsis_uts150_3pole_front_3__51226.jpg

    LS Electric

    02090048UL

    2090048UL, UTS250H FTU 225A 3P LL UL

    Molded Case Circuit Breaker, 3-Pole, 225 Amp, 100kA at 240V, 65kA at 480V, 35kA at 600V, Fixed Thermal / Magnetic, Lugs Line / Load Side, 7.48 x 4.13 x 3.44" (HWD)

  • weg-umbw-489-1p-cln_18__55926.jpg

    Weg

    UMBW-4C1-35

    14361852, Replacement for UMBW-4B1-35 (14360278)

    MCB, UL489, 1-Pole, C-Curve, 35 Amp, 120VAC/60VDC, 10kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • weg-umbw-1077-3p-cln_10__80918.jpg

    Weg

    UMBW-1C3-35

    14411820, Replacement for UMBW-1B3-35 (14411733)

    MCB, UL1077, 3-Pole, C-Curve, 35 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • 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

  • weg-umbw-1077-1p-cln_16__56821.jpg

    Weg

    UMBW-1B1-30

    14361514, Limited Availability, Replaced by UMBW-1C1-30 (14353584)

    MCB, UL1077, 1-Pole, B-Curve, 30 Amp, 277VAC, 5kA, 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