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
  • 02090048UL

    LS Electric

    02090048UL

    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)

  • M1N90T3L

    Noark

    M1N90T3L

    Molded Case Circuit Breaker, MCCB, UL489, M1N, 150 A Frame Size, 100kA @ 240VAC / 65kA @ 480VAC, 90 Amp, Thermal-Magnetic Trip, 3-Pole, Lug Line/Load Side Connection, EX9M1N Series

  • Available Now!
    UMBW-1C3-30
    Available Now!

    Weg

    UMBW-1C3-30

    MCB, UL1077, 3-Pole, C-Curve, 32 Amp, 277/480VAC, 5kA, Thermal-Magnetic Miniature Circuit Breaker, IP20, UMBW Series

  • 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)

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