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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Product Price Rating Action
  • 02050260UL

    LS Electric

    02050260UL

    MCCB, 3-Pole, 45 Amp, 25kA@480VAC, Fixed Thermal/Magnetic, Lugs Line/Load Side, 5.12 x 2.99 x 3.44" (HWD), Susol UL MCCB UTE100 Series, UL Listed, Molded Case Circuit Breaker

  • Available Now!
    UMBW-1C3-15
    Available Now!

    Weg

    UMBW-1C3-15

    MCB, UL1077, 3-Pole, C-Curve, 15 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series This is the Recommended Replacement for UMBW-1B3-15 (14353254) , UMBW-1B3-16 (14353257) and UMBW-1C3-16 (14360250)

  • M1N20T22L

    Noark

    M1N20T22L

    Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 20 Amp, Thermal-Magnetic Trip, 2-Pole, Lug Line/Load Side Connection, EX9M1N Series

  • M1N90T22L

    Noark

    M1N90T22L

    Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 90 Amp, Thermal-Magnetic Trip, 2-Pole, Lug Line/Load Side Connection, EX9M1N Series

  • 02050259UL

    LS Electric

    02050259UL

    MCCB, 3-Pole, 35 Amp, 25kA@480VAC, Fixed Thermal/Magnetic, Lugs Line/Load Side, 5.12 x 2.99 x 3.44" (HWD), Susol UL MCCB UTE100 Series, UL Listed, Molded Case Circuit Breaker

  • M1N20T1L

    Noark

    M1N20T1L

    Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 20 Amp, Thermal-Magnetic Trip, 1-Pole, Lug Line/Load Side Connection Connection, EX9M1N Series

  • M1N90T1L

    Noark

    M1N90T1L

    Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 90 Amp, Thermal-Magnetic Trip, 1-Pole, Lug Line/Load Side Connection Connection, EX9M1N 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