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Circuit Protection

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  1. Common Amperage 4Amp Remove This Item
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Category  
  1. Fuse 13 items
  2. Circuit Breaker 4 items
Capacitance  
Common Voltage  
  1. 600VAC 2 items
  2. 125VAC 3 items
  3. 250VDC 2 items
  4. 32VDC 2 items
  5. 250VAC 1 item
  6. 600VDC 1 item
  7. 125VDC 2 items
VAC  
  1. 277480 1 item
  2. 277 1 item
  3. Not Specified 2 items
Common Amperage  
X
  1. 1/100Amp 3 items
  2. 1/32Amp 2 items
  3. 1/20Amp 2 items
  4. 6/100Amp 1 item
  5. 1/16Amp 5 items
  6. 1/10Amp 6 items
  7. 1/8Amp 8 items
  8. 3/16Amp 4 items
  9. 15/100Amp 1 item
  10. 2/10Amp 5 items
  11. 1/4Amp 12 items
  12. 3/10Amp 7 items
  13. 3/8Amp 5 items
  14. 4/10Amp 5 items
  15. 1/2Amp 19 items
  16. 6/10Amp 2 items
  17. 7/10Amp 1 item
  18. 3/4Amp 12 items
  19. 8/10Amp 5 items
  20. 1Amp 33 items
  21. 1-1/10Amp 2 items
  22. 1-1/8Amp 3 items
  23. 1-1/4Amp 6 items
  24. 1-1/3Amp 3 items
  25. 1-4/10Amp 2 items
  26. 1-1/2Amp 7 items
  27. 1-6/10Amp 4 items
  28. 1-8/10Amp 1 item
  29. 2Amp 29 items
  30. 2-2/10Amp 1 item
  31. 2-1/4Amp 3 items
  32. 2-1/2Amp 11 items
  33. 2-8/10Amp 2 items
  34. 3Amp 31 items
  35. 3-2/10Amp 2 items
  36. 3-1/2Amp 2 items
  37. 4Amp 17 items
  38. 4-1/2Amp 1 item
  39. 5Amp 40 items
  40. 5-1/2Amp 2 items
  41. 6Amp 13 items
  42. 6-1/4Amp 2 items
  43. 7Amp 10 items
  44. 7-1/4Amp 1 item
  45. 7-1/2Amp 5 items
  46. 8Amp 16 items
  47. 9Amp 3 items
  48. 10Amp 57 items
  49. 12Amp 6 items
  50. 13Amp 2 items
  51. 14Amp 1 item
  52. 15Amp 50 items
  53. 16Amp 6 items
  54. 17-1/2Amp 2 items
  55. 18Amp 1 item
  56. 20Amp 41 items
  57. 21Amp 1 item
  58. 25Amp 25 items
  59. 32Amp 2 items
  60. 30Amp 35 items
  61. 35Amp 9 items
  62. 40Amp 15 items
  63. 45Amp 1 item
  64. 50Amp 30 items
  65. 60Amp 10 items
  66. 65Amp 1 item
  67. 63Amp 1 item
  68. 70Amp 11 items
  69. 75Amp 1 item
  70. 80Amp 5 items
  71. 90Amp 3 items
  72. 100Amp 20 items
  73. 110Amp 8 items
  74. 125Amp 6 items
  75. 150Amp 9 items
  76. 160Amp 1 item
  77. 175Amp 6 items
  78. 200Amp 10 items
  79. 225Amp 1 item
  80. 250Amp 5 items
  81. 260Amp 1 item
  82. 300Amp 5 items
  83. 315Amp 1 item
  84. 350Amp 4 items
  85. 400Amp 3 items
  86. 450Amp 3 items
  87. 500Amp 2 items
  88. 600Amp 6 items
  89. 700Amp 2 items
  90. 800Amp 4 items
  91. 1200Amp 1 item
  92. 1600Amp 1 item
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Fuse Package  
  1. Glass 2 items
  2. Axial Lead 1 item
DC Voltage  
Manufacturer  
  1. Airpax 1 item
  2. BELFUSE 1 item
  3. Bussmann 2 items
  4. Cooper/Bussmann 5 items
  5. Cutler-Hammer 1 item
  6. Klixon 1 item
  7. LITTELFUSE 5 items
  8. Siemens 1 item
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Amperage  
Unit of Measure  
  1. Each 3 items
  2. Set 6 items
Price  
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17 Items

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  1. AIRPAX - UPG6-1-62-402-C-91 - Circuit Breaker, Magnetic 1 Pole, 4 Amp 277VAC.
    AIRPAX - UPG6-1-62-402-C-91 - Circuit Breaker, Magnetic 1 Pole, 4 Amp 277VAC.
    Special Price $9.98 Regular Price $12.50
    Out of stock
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    AIRPAX - UPG6-1-62-402-C-91 Circuit Breaker.

    Magnetic 1 Pole

    4 Amp 277VAC, 50/60Hz.

    Delay Trip 5 Amp.

    Learn More
  2. TI - Sensata - KLIXON - 51MC1-25-4 - Circuit Breaker, 4 Amp, 50VDC.
    TI - Sensata - KLIXON - 51MC1-25-4 - Circuit Breaker, 4 Amp, 50VDC.
    Special Price $8.98 Regular Price $14.98
    READY TO SHIP - ONLY 31 LEFT IN STOCK!
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    Texas Instrument - Sensata - KLIXON - 51MC1-25-4 - Circuit Breaker.

    4 Amp,

    50VDC.

    "M3A"-CURVE 25.

    Learn More
  3. SIEMENS - 5SX21-C4 - Circuit breaker. 1P 4Amp 230~400V.
    SIEMENS - 5SX21-C4 - Circuit breaker. 1P 4Amp 230~400V.
    $9.95
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    Circuit breaker. 1P 4Amp 230~400V. Mount: panel. Only 0.7" wide x 3.55"tall x 2". Note: Listed UL/CSA/CEBC/OVE, Circled "N", VDE. Learn More
  4. CUTLER-HAMMER - SPMH1HM0004 - Circuit breaker. 1P 4 Amp 277/480VAC.
    CUTLER-HAMMER - SPMH1HM0004 - Circuit breaker. 1P 4 Amp 277/480VAC.
    $24.99
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    Circuit breaker. 1P 4 Amp 277/480VAC. Mount: din rail. Actuator: toggle. 8X Inrush - Medium delay. Note: UL 1077 Supplementary protector. Learn More
  5. Littelfuse - R251004 - Fuse, pico. 4Amp 125V.
    Littelfuse - R251004 - Fuse, pico. 4Amp 125V.
    $1.00
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    Fuse, pico. 4Amp 125V. Case: axial leads. New. Learn More
  6. LITTELFUSE - 313004 - Fuse. 4Amp 125V 3AG. Slo-blow. Package of 5.
    LITTELFUSE - 313004 - Fuse. 4Amp 125V 3AG. Slo-blow. Package of 5.
    Special Price $3.98 Regular Price $5.00
    Out of stock
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    Fuse. 4Amp 125V 3AG. Slo-blow. Dimensions: 0.25" (6.35mm) D x 1.25" (31.75mm) long. Package of 5. Learn More
  7. LITTELFUSE - 312004 - Fuse. 4Amp 250V 3AG. (P5).
    LITTELFUSE - 312004 - Fuse. 4Amp 250V 3AG. (P5).
    Special Price $3.98 Regular Price $5.00
    Out of stock
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    Fuse. 4Amp 250V 3AG. Dimensions: 0.25" (6.35mm) D x 1.25" (31.75mm) long. Package of 5. Learn More
  8. Cooper/Bussmann - LPJ4SP - Fuse. 4Amp 600VAC.
    Cooper/Bussmann - LPJ4SP - Fuse. 4Amp 600VAC.
    $10.00
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    Fuse. 4Amp 600VAC. Dual time, delay element, current limiting. Class J. Learn More
  9. Cooper/Bussmann - NOS4 - Fuse. 4Amp 600VAC.
    Cooper/Bussmann - NOS4 - Fuse. 4Amp 600VAC.
    $15.00
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    Fuse. 4Amp 600VAC. One Time. Dimensions: 0.816" D x 5" long. Learn More
  10. BUSSMANN - FRS-R4 - Fuse. 600V 4Amp. Dual-element time-delay.
    BUSSMANN - FRS-R4 - Fuse. 600V 4Amp. Dual-element time-delay.
    $14.95
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    Fuse. 600V 4Amp. Dual-element time-delay. Current limiting Class-RK5. CSA HRC-1-R. 200,000Amp rms. Dimensions: 0.82" D x 5" long. Learn More
  11. BEL FUSE - 483525397095 - Fuse. 4Amp 125VAC. Glass.
    BEL FUSE - 483525397095 - Fuse. 4Amp 125VAC. Glass.
    Special Price $1.69 Regular Price $1.95
    READY TO SHIP - ONLY 7 LEFT IN STOCK!
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    BEL FUSE - 483525397095 Fuse.

    4Amp 125VAC.

    Glass. Mount: PCB with clips.

    Dimensions: 1/4" D x 13/16".

    Note: Replacement part for Magnavox, Philco, Sylvania and Philips.

    Learn More
  12. LITTELFUSE - AGX-4 - Fuse. 4Amp 32V. Package of 5.
    LITTELFUSE - AGX-4 - Fuse. 4Amp 32V. Package of 5.
    $3.00
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    Fuse. 4Amp 32V. Fast acting. Type 8AG. Package: glass, 0.25" D x 1.0" long. Package of 5 Learn More
  13. Cooper/Bussmann - SFE-4 - Fuse. 4Amp 32V. Fast acting.Package of 5
    Cooper/Bussmann - SFE-4 - Fuse. 4Amp 32V. Fast acting.Package of 5
    Special Price $3.98 Regular Price $5.00
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    Cooper Bussmann - SFE-4 -  Fuse. 4 Amp 32V.

    Fast Acting.

    Package: Glass

    Dimensions:  6.35 X 15.9mm (0.25" Diameter x 5/8" Length).

    Note: SFE fuses are 1/4” diameter and change in length as amp ratings increase

    Alternate: Littlefuse 307004, Ferraz Shawmut FSFE4

    Package of 5.

    Learn More
  14. LITTELFUSE - 0251004.M - Fuse, pico. 4Amp 125VAC.
    LITTELFUSE - 0251004.M - Fuse, pico. 4Amp 125VAC.
    $0.25
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    Fuse, pico. 4Amp 125VAC. PICO II. Fast blow. Package: axial leads. New. Learn More
  15. Cooper/Bussmann - FRN-R-4 - Fuse. 4Amp 250VAC.
    Cooper/Bussmann - FRN-R-4 - Fuse. 4Amp 250VAC.
    Special Price $8.98 Regular Price $12.50 As low as $6.98
    READY TO SHIP - ONLY 6 LEFT IN STOCK!
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    Cooper/Bussmann - FRN-R-4 Fuse. 4Amp 250VAC.

    Semiconductor fuse, dual element, time delay.

    Class RK5.

    Dimensions: 0.56" D x 2.00" long. (14.22 X 50.8mm)

    Learn More
  16. Cooper/Bussmann - AGX-4 - Fuse. 4Amp 125V. Package of 5.
    Cooper/Bussmann - AGX-4 - Fuse. 4Amp 125V. Package of 5.
    $3.00
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    Fuse. 4Amp 125V. Fast acting. Type 8AG. Package: glass, 0.25" D x 1.0" long. Package of 5 Learn More
  17. Cooper Bussmann - MTH-4 - Fuse. 4Amp 250V. Package of 5.
    Cooper Bussmann - MTH-4 - Fuse. 4Amp 250V. Package of 5.
    Special Price $3.98 Regular Price $4.50
    Out of stock
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    Cooper Bussmann - MTH-4 Fuse.

    4Amp 250V.

    Glass.

    Dimensions: 1/4" D x 1-1/4" long.

    Package of 5.

    Learn More
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