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    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.
    View as Grid List

    Items 1-12 of 2366

    Set Descending Direction
    1. 0626037963
      Circuit Breaker, UL1077, 1-Pole, D-Curve, 40A, 6kA 0626037963
      626037963, BK63H 1P D40A 6kA 277VAC UL1077
      $7.34
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    2. MCB, 1P, 277 VAC, B Curve, 20A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, B-Curve, 20A, UL1077, 5kA, Mi UMBW-1B1-20
      14351012, Limited Availability, Replaced by UMBW-1C2-20 (13915501)
      $9.25
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    3. MCB, 1P, 277 VAC, B Curve, 16A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, B-Curve, 16A, UL1077, 5kA, Mi UMBW-1B1-16
      14350148, Limited Availability, Replaced by UMBW-1C1-15 (14353581)
      $9.25
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    4. MCB, 1P, 277 VAC, D Curve, 5A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, D-Curve, 5A, UL1077, 5kA, Min UMBW-1D1-5
      14360530
      $9.25
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    5. MCB, 1P, 277 VAC, D Curve, 10A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, D-Curve, 10A, UL1077, 5kA, Mi UMBW-1D1-10
      14360394
      $9.25
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    6. MCB, 1P, 277 VAC, C Curve, 5A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, C-Curve, 5A, UL1077, 5kA, Min UMBW-1C1-5
      14353585, This is the Recommended Replacement for UMBW-1B1-5 (14361538)
      $9.25
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    7. MCB, 1P, 277 VAC, C Curve, 20A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, C-Curve, 20A, UL1077, 5kA, Mi UMBW-1C1-20
      13912234, This is the Recommended Replacement for UMBW-1B1-20 (14351012)
      $9.25
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    8. MCB, 1P, 277 VAC, C Curve, 15A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, C-Curve, 15A, UL1077, 5kA, Mi UMBW-1C1-15
      14353581, This is the Recommended Replacement for UMBW-1B1-15 (14361512), UMBW-1B1-16 (14350148)
      $9.25
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    9. B1E1C5
      Miniature Circuit Breaker, UL1077, 1-Pole, C-Curve B1E1C5
      1000446
      $10.20
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    10. Mini Circuit Breaker, 1P, B-Curve, 4A, UL489
      Miniature Circuit Breaker, UL489, 1-Pole, B-Curve, B1N1B4
      1000005
      $13.60
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    11. Mini Circuit Breaker, 1P, C-Curve, 8A, UL489
      Miniature Circuit Breaker, UL489, 1-Pole, C-Curve, B1H1C8
      1000745
      $15.30
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    12. Mini Circuit Breaker, 1P, B-Curve, 30A, UL489
      Miniature Circuit Breaker, UL489, 1-Pole, B-Curve, B1H1B30
      1000976
      $16.15
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    Manufacturer
    1. Altech Corp. 1 item
    2. Carlo Gavazzi 49 items
    3. LS Electric 666 items
    4. Noark 1170 items
    5. Weg 480 items
    Voltage
    1. AC 1 item
    2. 115/230 VAC 1 item
    3. 120/60 VAC/DC 12 items
    4. 125VDC 6 items
    5. 120/240VAC 77 items
    6. 220/240VAC 182 items
    7. 277VAC 167 items
    8. 277/60 VAC/DC 29 items
    9. 277/480Y VAC 187 items
    10. 460/480VAC 14 items
    11. 480Y/277VAC 697 items
    12. 600V 55 items
    13. 690V 33 items
    14. See Spec or N/A 60 items
    Trip Curve
    1. B Curve 429 items
    2. C Curve 573 items
    3. D Curve 527 items
    4. MCCB - Molded Case 236 items
    5. MMP - Manual Motor Protector 33 items
    6. See Spec or N/A 567 items
    Circuit Breaker Type
    1. UL1077 848 items
    2. UL489 734 items
    3. UL508 1 item
    4. Ground Fault UL1077 1 item
    5. Ground Fault UL489 1 item
    6. Manual Motor Protector (MMP) 33 items
    7. Molded Case (MCCB) 236 items
    8. See Spec 563 items
    Poles
    1. 1 Pole 473 items
    2. 2 Pole 465 items
    3. 3 Pole 699 items
    4. 4 Pole 165 items
    5. See Spec or N/A 564 items
    Product Series
    1. B1E Series 254 items
    2. B1H Series (Ex9B1H) 153 items
    3. B1N Series (Ex9B1N) 200 items
    4. BK Series 590 items
    5. DWB Series 106 items
    6. GMB63 Series 26 items
    7. GSB63 Series 23 items
    8. MPW Series 33 items
    9. UBW Series 54 items
    10. UMBW Series 287 items
    11. UM Series 1 item
    12. UTE Series (Susol) 49 items
    13. UTS Series (Susol) 27 items
    14. See Specs 1 item
    Amp Rating
    1. 0.5 Amp 20 items
    2. 1 Amp 80 items
    3. 1.5 Amp 13 items
    4. 1.6 Amp 41 items
    5. 2 Amp 82 items
    6. 3 Amp 81 items
    7. 4 Amp 85 items
    8. 5 Amp 80 items
    9. 6 Amp 83 items
    10. 7 Amp 2 items
    11. 8 Amp 79 items
    12. 10 Amp 84 items
    13. 12 Amp 4 items
    14. 13 Amp 43 items
    15. 15 Amp 86 items
    16. 16 Amp 73 items
    17. 18 Amp 12 items
    18. 20 Amp 92 items
    19. 25 Amp 90 items
    20. 30 Amp 86 items
    21. 32 Amp 78 items
    22. 35 Amp 33 items
    23. 40 Amp 95 items
    24. 45 Amp 1 item
    25. 50 Amp 83 items
    26. 60 Amp 46 items
    27. 63 Amp 61 items
    28. 70 Amp 9 items
    29. 80 Amp 13 items
    30. 90 Amp 10 items
    31. 100 Amp 20 items
    32. 125 Amp 8 items
    33. 150 Amp 9 items
    34. 175 Amp 1 item
    35. 200 Amp 12 items
    36. 225 Amp 9 items
    37. 250 Amp 13 items
    38. 275 Amp 4 items
    39. 280 to 400 Amp 2 items
    40. 300 Amp 8 items
    41. 315 to 450 Amp 2 items
    42. 320 to 400 Amp 4 items
    43. 325 Amp 6 items
    44. 350 Amp 7 items
    45. 350 to 500 Amp 2 items
    46. 385 to 550 Amp 2 items
    47. 400 Amp 4 items
    48. 420 to 600 Amp 2 items
    49. 500 Amp 4 items
    50. 600 Amp 6 items
    51. 800 Amp 2 items
    52. See Spec 594 items
    Short Circuit Capacity
    1. 5kA 459 items
    2. 6kA 200 items
    3. 10kA 909 items
    4. 14kA 30 items
    5. 18kA 16 items
    6. 35kA 58 items
    7. 50kA 26 items
    8. 65kA 25 items
    9. See Spec 643 items
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