• Create an Account
Free UPS Ground Shipping on Online Orders $100+*
My Cart
Cart
  • Sign In
    • Wolf Head Toggle Nav
    Search
    • Compare Products
    Menu
    Account

    Circuit Breakers

    (a.k.a. mini breakers, MCB, MCCB, molded case breaker, supplementary protection)

    The basics: a circuit breaker is a device that will interrupt the flow of current in an electrical circuit. This protects the surrounding electrical components and wiring from damage by electrical overloads or short circuits.
    Shop By
    Clear All
    View as Grid List

    Items 1-12 of 29

    Set Descending Direction
    1. MCB, 1P, 277/60 VAC/DC, D Curve, 16A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, D-Curve, 16A, UL489, 1 UMBW-4D1-16
      13641992, Limited Availability! Replaced by UMBW-4D1-15 (14362949)
      $19.61
      Add to Wish List Add to Compare
    2. MCB, 1P, 277/60 VAC/DC, D Curve, 15A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, D-Curve, 15A, UL489, 1 UMBW-4D1-15
      14362949, This is the Recommended Replacement for UMBW-4D1-16 (13641992)
      $19.61
      Add to Wish List Add to Compare
    3. MCB, 1P, 277/60 VAC/DC, D Curve, 10A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, D-Curve, 10A, UL489, 1 UMBW-4D1-10
      13641999
      $19.61
      Add to Wish List Add to Compare
    4. MCB, 1P, 277/60 VAC/DC, D Curve, 1A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, D-Curve, 1A, UL489, 10 UMBW-4D1-1
      13641893
      $19.61
      Add to Wish List Add to Compare
    5. MCB, 1P, 277/60 VAC/DC, C Curve, 6A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 6A, UL489, 10 UMBW-4C1-6
      13634519, This is the Recommended Replacement for UMBW-4B1-6 (14360410)
      $19.61
      Add to Wish List Add to Compare
    6. MCB, 1P, 277/60 VAC/DC, C Curve, 20A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 20A, UL489, 1 UMBW-4C1-20
      13641127, This is the Recommended Replacement for UMBW-4B1-20 (14360260)
      $19.61
      Add to Wish List Add to Compare
    7. MCB, 1P, 277/60 VAC/DC, C Curve, 2A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 2A, UL489, 10 UMBW-4C1-2
      13634259, This is the Recommended Replacement for UMBW-4B1-2 (14360177)
      $19.61
      Add to Wish List Add to Compare
    8. MCB, 1P, 277/60 VAC/DC, C Curve, 16A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 16A, UL489, 1 UMBW-4C1-16
      13634520, Limited Availability! Replaced by UMBW-4C1-15 (14361805)
      $19.61
      Add to Wish List Add to Compare
    9. MCB, 1P, 277/60 VAC/DC, C Curve, 15A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 15A, UL489, 1 UMBW-4C1-15
      14361805, This is the Recommended Replacement for UMBW-4B1-15 (14360169), UMBW-4B1-16 (14360170) and UMBW-4C1-16 (13634520)
      $19.61
      Add to Wish List Add to Compare
    10. MCB, 1P, 277/60 VAC/DC, C Curve, 10A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 10A, UL489, 1 UMBW-4C1-10
      13634523, This is the Recommended Replacement for UMBW-4B1-10 (14360098)
      $19.61
      Add to Wish List Add to Compare
    11. MCB, 1P, 277/60 VAC/DC, C Curve, 1A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 1A, UL489, 10 UMBW-4C1-1
      13634258, This is the Recommended Replacement for UMBW-4B1-1 (14359974)
      $19.61
      Add to Wish List Add to Compare
    12. MCB, 1P, 277/60 VAC/DC, C Curve, 4A, UL 489
      MCB, 1-Pole, 277/60 VAC/DC, C-Curve, 4A, UL489, 10 UMBW-4C1-4
      13338282, This is the Recommended Replacement for UMBW-4B1-4 (14360281)
      $19.61
      Add to Wish List Add to Compare
    Page
    per page
    Compare Products
    1. Remove This Item
    Compare
    Clear All
    You have no items to compare.
    My Wish List
    Last Added Items
    1. Add to Cart
      Remove This Item
    Go to Wish List
    You have no items in your wish list.
    Copyright © 2023 Wolfautomation. All rights reserved.