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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 2271

    Set Descending Direction
    1. 0626037963
      Circuit Breaker, UL1077, 1-Pole, D-Curve, 40A, 6kA 0626037963
      626037963, BK63H 1P D40A 6kA 277VAC UL1077
      $6.91
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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, C Curve, 10A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, C-Curve, 10A, UL1077, 5kA, Mi UMBW-1C1-10
      13915370, This is the Recommended Replacement for UMBW-1B1-10 (14349925)
      $9.25
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    5. MCB, 1P, 277 VAC, D Curve, 20A, UL1077, 5kA
      MCB, 1-Pole, 277VAC, D-Curve, 20A, UL1077, 5kA, Mi UMBW-1D1-20
      14360482
      $9.25
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    6. 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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    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. B1E1D3
      Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve B1E1D3
      1000465
      $11.05
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    10. Mini Circuit Breaker, 1P, D-Curve, 30A, UL1077
      Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve B1E1D30
      1000476
      $11.05
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    11. Mini Circuit Breaker, 1P, B-Curve, 4A, UL1077
      Miniature Circuit Breaker, UL1077, 1-Pole, B-Curve B1E1B4
      1000424
      $11.05
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    12. Mini Circuit Breaker, 1P, D-Curve, 5A, UL1077
      Miniature Circuit Breaker, UL1077, 1-Pole, D-Curve B1E1D5
      1000467
      $11.05
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    Manufacturer
    1. Altech Corp. 2 items
    2. Carlo Gavazzi 48 items
    3. LS Electric 666 items
    4. Noark 1076 items
    5. Weg 479 items
    Voltage
    1. AC 1 item
    2. 60VDC 69 items
    3. 120/60 VAC/DC 12 items
    4. 125VDC 98 items
    5. 120/240VAC 338 items
    6. 220/240VAC 482 items
    7. 250VDC 69 items
    8. 277VAC 163 items
    9. 277/60 VAC/DC 29 items
    10. 277/480Y VAC 187 items
    11. 460/480VAC 112 items
    12. 480Y/277VAC 710 items
    13. 600V 55 items
    14. 690V 33 items
    15. See Spec or N/A 60 items
    Trip Curve
    1. B Curve 522 items
    2. C Curve 711 items
    3. D Curve 663 items
    4. MCCB - Molded Case 334 items
    5. MMP - Manual Motor Protector 33 items
    6. See Spec or N/A 7 items
    Circuit Breaker Type
    1. UL1077 848 items
    2. UL489 1199 items
    3. UL508 2 items
    4. Ground Fault UL1077 1 item
    5. Manual Motor Protector (MMP) 33 items
    6. Molded Case (MCCB) 335 items
    7. See Spec 2 items
    Poles
    1. 1 Pole 665 items
    2. 2 Pole 706 items
    3. 3 Pole 732 items
    4. 4 Pole 165 items
    5. See Spec or N/A 3 items
    Product Series
    1. B1D Series 92 items
    2. B1E Series 254 items
    3. B1H Series (Ex9B1H) 160 items
    4. B1N Series (Ex9B1N) 207 items
    5. B1NQ Series 264 items
    6. BK Series 589 items
    7. DWB Series 106 items
    8. GMB63 Series 25 items
    9. GSB63 Series 23 items
    10. M1H Series (Ex9M1H) 43 items
    11. M1N Series (Ex9M1N) 55 items
    12. MPW Series 33 items
    13. UBW Series 54 items
    14. UMBW Series 286 items
    15. UM Series 2 items
    16. UTE Series (Susol) 49 items
    17. UTS Series (Susol) 27 items
    Amp Rating
    1. 0.5 Amp 24 items
    2. 1 Amp 97 items
    3. 1.2 Amp 11 items
    4. 1.5 Amp 13 items
    5. 1.6 Amp 57 items
    6. 2 Amp 99 items
    7. 3 Amp 97 items
    8. 4 Amp 101 items
    9. 5 Amp 96 items
    10. 6 Amp 99 items
    11. 7 Amp 22 items
    12. 8 Amp 95 items
    13. 10 Amp 102 items
    14. 12 Amp 4 items
    15. 13 Amp 59 items
    16. 15 Amp 109 items
    17. 16 Amp 89 items
    18. 18 Amp 12 items
    19. 20 Amp 119 items
    20. 25 Amp 113 items
    21. 30 Amp 109 items
    22. 32 Amp 93 items
    23. 35 Amp 56 items
    24. 40 Amp 118 items
    25. 45 Amp 20 items
    26. 50 Amp 105 items
    27. 60 Amp 69 items
    28. 63 Amp 77 items
    29. 70 Amp 14 items
    30. 80 Amp 21 items
    31. 90 Amp 17 items
    32. 100 Amp 27 items
    33. 125 Amp 13 items
    34. 150 Amp 13 items
    35. 175 Amp 1 item
    36. 200 Amp 12 items
    37. 225 Amp 9 items
    38. 250 Amp 13 items
    39. 275 Amp 4 items
    40. 280 to 400 Amp 2 items
    41. 300 Amp 9 items
    42. 315 to 450 Amp 2 items
    43. 320 to 400 Amp 4 items
    44. 325 Amp 6 items
    45. 350 Amp 7 items
    46. 350 to 500 Amp 2 items
    47. 385 to 550 Amp 2 items
    48. 400 Amp 4 items
    49. 420 to 600 Amp 2 items
    50. 500 Amp 4 items
    51. 600 Amp 6 items
    52. 800 Amp 2 items
    53. See Spec 10 items
    Short Circuit Capacity
    1. 5kA 459 items
    2. 6kA 200 items
    3. 10kA 1276 items
    4. 14kA 30 items
    5. 18kA 16 items
    6. 35kA 58 items
    7. 50kA 26 items
    8. 65kA 26 items
    9. 100kA 55 items
    10. 150kA 43 items
    11. See Spec 82 items
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