Okaya
3CRH-30330
Okaya 3CRH-30330 3-Phase Delta Surge Suppressor Spark Quencher 500VAC 50/60Hz
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$9.89
Circuit Breakers, Fuses & Protection
3,512 listings · 3,458 in stock
3,512 Circuit Breakers, Fuses & Protection listings in 8 categories, from makers like Bussmann, Mersen, Eaton. Surplus, used and new-surplus, every item photographed. Free shipping in the lower 48 and zero lead time on everything in stock.
Categories in Circuit Breakers, Fuses & Protection
- Fuses1,575 in stock
- Circuit Breakers & Accessories828 in stock
- Miniature & DIN Rail Circuit Breakers307 in stock
- Fuse Holders & Fuse Blocks252 in stock
- Disconnect & Safety Switches206 in stock
- Molded Case Circuit Breakers133 in stock
- Surge Protection & Ground Fault127 in stock
- Protective & Monitoring Relays30 in stock
Bussmann
LPJ-30SP
Bussmann LPJ-30SP Low-Peak Class J Fuse 30A 600V Dual Element Time Delay LPJ30SP
Only 1 left
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$9.89
Siemens
77481A00
Siemens 77481A00 Trip Unit 400A Magnetic Adjustable 2000-4000 Circuit Breaker
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$125.89
Omron
17X1H3
Omron 17X1H3 RE 12 Neutral Safety Switch Transmission Range Sensor Automotive
In stock
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$19.89
Siemens
5SY6102-7
Siemens 5SY6102-7 Miniature Circuit Breaker 1-Pole 2A C2 230/400V Lot of 4 MCB
In stock
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$52.89 / lot of 4
Reliance Electric
805402-SA
Reliance Electric 805402-SA SF3000 AutoMax Field Clamp Module 460VAC 500VDC 250A
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$355.89
Allen-Bradley
1492-FB1J60
Allen-Bradley 1492-FB1J60 Class J Fuse Holder Block 60A 600V 1-Pole Series B DIN
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$9.89
Square D
MG17416
Square D MG17416 88467 Supplementary Protector 15A 277VAC 1-Pole C Curve Breaker
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$16.89
Mersen
OTM10
Ferraz Shawmut OTM10 10A 250V Midget Fuse Lot of 2 Industrial Electrical Control
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$9.89 / lot of 2
Mersen
USM1I-DC24P
Ferraz Shawmut USM1I-DC24P Ultrasafe Fuse Holder 30A 24VDC 1-Pole DIN Rail 10x38
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$11.89
Bussmann
7.2ABWNA3.15
Bussmann 7.2ABWNA3.15 Medium Voltage HRC Current Limiting Fuse 3.15A 7.2kV VT
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$193.89
Beck
13-2230-03
Beck 13-2230-03 Rectifier Fuse 6A 250V Littelfuse Lot of 5 Industrial Control
Only 1 lot left
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$9.89 / lot of 5
Westinghouse
1491-134963
Westinghouse Amptector DU Solid State Trip Unit Circuit Breaker 1491-134963
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$324.89
Industrial part
1208C08-0315-17
Maxivolt 1208C08-0315-17 Surge Protection Device E25550 10-ICP 40DC Industrial
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$49.89
Westinghouse
6997D20641
Westinghouse 6997D20641 Amptector II-A Solid State Trip Unit DB DS Power Breaker
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$449.89
Cutler-Hammer
FWF1020LM05
Cutler-Hammer FWF1020LM05 Circuit Breaker 20A 240VAC 1-Pole Series C Lot of 2
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$15.89 / lot of 2
Landis GYR
60A LGP5F8F8FUS 3R
Landis & Gyr LGP5F8F8FUS 60A Power Outlet Panel NEMA 3R 120/240VAC 20A GFCI Box
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$149.89
General Electric
343L881G4
GE General Electric 343L881G4 Position Switch Kit AKR Substructure Breaker Part
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$314.89
Littelfuse
V151BA60
Littelfuse V151BA60 Metal Oxide Varistor MOV 240V 50kA 60mm BA Surge Protection
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$85.89
Asea
R5653-182-B
ASEA R5653-182-B RXTCC2 RXTG21 COMBIFLEX Protective Relay ABB Control Industrial
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$129.89
General Electric
12HMA11A25
General Electric GE 12HMA11A25 Protective Relay Protection Control Industrial
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$175.89
Cutler-Hammer
EN403HADNSNNNNC
Eaton Cutler-Hammer EN403HADNSNNNNC Magnum Breaker Cassette 4000A 3P Drawout
Only 1 left
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$5,814.89
Cutler-Hammer
FWF1020LM05
Eaton Cutler-Hammer FWF1020LM05 20A 1-Pole Industrial Circuit Breaker 240V 40kA
Only 1 left
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$9.89
Fusetron
FRN-R-10
Fusetron Dual-Element Time Delay FRN-R-10 Amp
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$6.99
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Guides for Circuit Breakers, Fuses & Protection
- Circuit protectionMolded Case Circuit Breaker Ratings & ReplacementsFrame size, trip rating, interrupting rating (kA), voltage and slash ratings, trip units and mounting – and a checklist for a safe replacement.
- Parts identificationHow to Read Breaker & VFD Nameplates and Date CodesFrame, trip and interrupting ratings on breakers; input, output, duty ratings and series on drives – and where to look for the date of manufacture.