Circuit Protection

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  1. SIEMENS - 3VF4231-1DF41-7KA0 - 3-Ph 125A Adj Thermal Magnetic Circuit Breaker
    SIEMENS - 3VF4231-1DF41-7KA0 - 3-Ph 125A Adj Thermal Magnetic Circuit Breaker
    $379.00
    3VF & Meter #3VF4231-1DF41-7KA0 50/60Hz 415V/40/40kA 690V 14/7 Excellent Condition - UL-E167267 CSA-LR44511 VDE-0660 IEC-947-2 Trip Thermal Magnetic Circuit Breaker Learn More
  2. 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

    AIRPAX - UPG6-1-62-402-C-91 Circuit Breaker.

    Magnetic 1 Pole

    4 Amp 277VAC, 50/60Hz.

    Delay Trip 5 Amp.

    Learn More
  3. 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!

    Texas Instrument - Sensata - KLIXON - 51MC1-25-4 - Circuit Breaker.

    4 Amp,

    50VDC.

    "M3A"-CURVE 25.

    Learn More
  4. SIEMENS - 5SX21-C4 - Circuit breaker. 1P 4Amp 230~400V.
    SIEMENS - 5SX21-C4 - Circuit breaker. 1P 4Amp 230~400V.
    $9.95
    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
  5. CUTLER-HAMMER - SPMH1HM0004 - Circuit breaker. 1P 4 Amp 277/480VAC.
    CUTLER-HAMMER - SPMH1HM0004 - Circuit breaker. 1P 4 Amp 277/480VAC.
    $24.99
    Circuit breaker. 1P 4 Amp 277/480VAC. Mount: din rail. Actuator: toggle. 8X Inrush - Medium delay. Note: UL 1077 Supplementary protector. Learn More
  6. Littelfuse - IDSR125 - Fuse, indicating.
    Littelfuse - IDSR125 - Fuse, indicating.
    $60.00
    Fuse, indicating. 125Amp 75 to 600V AC/DC. Blade type. Class RK-5. Power-Pro. IR: 200KA, 300KA (Self-certified). 20KA DC. Dimensions: 2.090" D x 6-3.4" long. Overall with blade contacts 8-9/16" long. Each blade is 1-1/8" wide x 1-1/2" long and 0.192" thick. Learn More
  7. Littelfuse - R251004 - Fuse, pico. 4Amp 125V.
    Littelfuse - R251004 - Fuse, pico. 4Amp 125V.
    $1.00
    Fuse, pico. 4Amp 125V. Case: axial leads. New. Learn More
  8. 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
    Fuse. 4Amp 125V 3AG. Slo-blow. Dimensions: 0.25" (6.35mm) D x 1.25" (31.75mm) long. Package of 5. Learn More
  9. LITTELFUSE - 312004 - Fuse. 4Amp 250V 3AG. (P5).
    LITTELFUSE - 312004 - Fuse. 4Amp 250V 3AG. (P5).
    Special Price $3.98 Regular Price $5.00
    Fuse. 4Amp 250V 3AG. Dimensions: 0.25" (6.35mm) D x 1.25" (31.75mm) long. Package of 5. Learn More
  10. Cooper/Bussmann - LPJ4SP - Fuse. 4Amp 600VAC.
    Cooper/Bussmann - LPJ4SP - Fuse. 4Amp 600VAC.
    $10.00
    Fuse. 4Amp 600VAC. Dual time, delay element, current limiting. Class J. Learn More
  11. Cooper/Bussmann - NOS4 - Fuse. 4Amp 600VAC.
    Cooper/Bussmann - NOS4 - Fuse. 4Amp 600VAC.
    $15.00
    Fuse. 4Amp 600VAC. One Time. Dimensions: 0.816" D x 5" long. Learn More
  12. BUSSMANN - FRS-R4 - Fuse. 600V 4Amp. Dual-element time-delay.
    BUSSMANN - FRS-R4 - Fuse. 600V 4Amp. Dual-element time-delay.
    $14.95
    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
  13. 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!

    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
  14. GOULD - OTS125 - Fuse. 125Amp 600V.
    GOULD - OTS125 - Fuse. 125Amp 600V.
    $59.00
    Fuse. 125Amp 600V. One-time. Package: blade-type. Shawmut. Dimensions: approximately 1.85" D x 9.7" long. Learn More
  15. Cooper/Bussmann - FRS-R-125 - Fuse. 125Amp 600V.
    Cooper/Bussmann - FRS-R-125 - Fuse. 125Amp 600V.
    $100.00
    Fuse. 125Amp 600V. Dual-element, time-delay, current limiting. Fusetron, class RK5. Listed: UL/CSA. Fuse FP07-77. Dimensions: 1.615" D x 3.335" long, plus each blade 3.198" long x 1.129" wide x 0.202" thick. Learn More
  16. BUSSMANN - XLF70F125 - Fuse. 125Amp 700V.
    BUSSMANN - XLF70F125 - Fuse. 125Amp 700V.
    $125.00
    Fuse. 125Amp 700V. AC/DC rectifier fuse, type XL. Learn More
  17. BUSSMANN - FWH-125B - FUSE Semiconductor 125A
    BUSSMANN - FWH-125B - FUSE Semiconductor 125A
    Special Price $48.95 Regular Price $59.00
    125A RECTIFIER FUSE HIGH SPEED/SEMI-COND I.R.500VAC 200KA/I.R.500VDC 50KA 6PC IN MANFR.BX Learn More
  18. LITTELFUSE - AGX-4 - Fuse. 4Amp 32V. Package of 5.
    LITTELFUSE - AGX-4 - Fuse. 4Amp 32V. Package of 5.
    $3.00
    Fuse. 4Amp 32V. Fast acting. Type 8AG. Package: glass, 0.25" D x 1.0" long. Package of 5 Learn More
  19. 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

    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
  20. LITTELFUSE - 0251004.M - Fuse, pico. 4Amp 125VAC.
    LITTELFUSE - 0251004.M - Fuse, pico. 4Amp 125VAC.
    $0.25
    Fuse, pico. 4Amp 125VAC. PICO II. Fast blow. Package: axial leads. New. Learn More
  21. 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!

    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
  22. Cooper/Bussmann - AGX-4 - Fuse. 4Amp 125V. Package of 5.
    Cooper/Bussmann - AGX-4 - Fuse. 4Amp 125V. Package of 5.
    $3.00
    Fuse. 4Amp 125V. Fast acting. Type 8AG. Package: glass, 0.25" D x 1.0" long. Package of 5 Learn More
  23. 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

    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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