Square D
40567-016-51
Square D 40567-016-51 Industrial Fuse Block Cartridge Holder 3-Pole Replacement
Only 1 left
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$25.89
Circuit Breakers, Fuses & Protection
3,500 listings · 3,446 in stock
3,500 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
- Fuses1,574 in stock
- Circuit Breakers & Accessories823 in stock
- Miniature & DIN Rail Circuit Breakers304 in stock
- Fuse Holders & Fuse Blocks250 in stock
- Disconnect & Safety Switches206 in stock
- Molded Case Circuit Breakers133 in stock
- Surge Protection & Ground Fault126 in stock
- Protective & Monitoring Relays30 in stock
Square D
9422-TC2
Square D 9422-TC2 Operating Mechanism Disconnect Switch Handle Flange Mounted
Only 1 left
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$67.89
Euchner
SGLF4-5000P
Euchner SGLF4-5000P Safety Switch Connector Cable 4-Pin 5m Pre-Wired Industrial
Only 3 left
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$69.89
Bussmann
FRS-R-3-2/10
Bussmann Fusetron FRS-R-3-2/10 Time Delay Dual Element Fuse 3.2 Amp 600V RK5
In stock
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$11.89
Square D
MG17466
Square D Merlin Gerin MG17466 C60N Multi 9 Supplementary Protector Breaker 1P
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$42.89
Square D
24544
Square D Merlin Gerin 24544 Multi 9 C60 D40 40A 3-Pole 480Y/277V Circuit Breaker
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$54.89
Littelfuse
FLSR-1-ID
Littelfuse FLSR-1-ID Time Delay Fuse 1A 600V Class RK5 Industrial Branch Circuit
In stock
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$28.89
Hitachi
CP31-F
Hitachi CP31-F Circuit Protector A60L-0001-0143/15AH 15A 220V 1 Pole Industrial
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$11.89
Square D
9422TCF30C
NNB Square D by Schneider Electric 9422TCF30C
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$139.89
Allen-Bradley
1494C-CM15
Allen Bradley 1494C-CM15 Cable Disconnect Operating Mechanism 600A 6ft Series A
Only 1 left
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$355.89
Allen-Bradley
40021-559-02
Allen Bradley 40021-559-02 Disconnect Switch 3 Pole Industrial OEM Replacement
Only 1 left
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$299.00
Bussmann
170E-4350
LK-NES Bussmann 170E-4350 High Speed Semiconductor Fuse 150A 660V 170E4350 Each
In stock
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$19.89
Napa
EM120
NAPA Echlin EM120 NARTRON 1700-1D Voltage Monitor 164 Industrial Heavy Duty OEM
Only 2 left
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$39.99
Weber
AS168B-1
Weber AS168B-1 G06 Miniature Circuit Breaker 6A 1 Pole 480V DIN Rail Industrial
In stock
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$10.00
Siemens
EFC3M100
Siemens EFC3M100 Molded Case Circuit Breaker 100A 3P 415VAC EF Frame Sentron OEM
Only 1 left
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$366.89
Siemens
EFC3M080
Siemens EFC3M080 Molded Case Circuit Breaker 80A 3P 415VAC EF Frame Industrial
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$426.89
ABB
S283-Z63
ABB S283-Z63 Miniature Circuit Breaker 3-Pole 63A 480VAC S280 Series Electrical
Only 1 left
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$24.99
Daniel Woodhead
41311
Daniel Woodhead 41311 Mini-Change Quick Disconnect Connector 600V 8A Lot of 5
Only 1 lot left
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$22.89 / lot of 5
Airpax
IEGM066-28281-1
Airpax IEGM066-28281-1 Circuit Breaker 277VAC Single Phase 3 Pole Industrial OEM
Only 2 left
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$93.89
Heinemann
CF3-Z320-1
Heinemann Electric CF3-Z320-1 Circuit Breaker 75A 240V 50/60Hz 3 Pole Panel
Only 2 left
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$214.89
Weidmuller
Weidmuller 990875/63 QUICKbloc 16 Channel Discon
Weidmuller 990875/63 QUICKbloc 16 Channel Disconnect Terminal Block Automation
Only 3 left
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$49.99
Eaton
XTPAXCLKA2
Eaton XTPAXCLKA2 Commoning Link A 3 Phase 2 Device Motor Protection Bus Bar
In stock
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$25.89
Eaton
WMZT2C03
Eaton WMZT2C03 Circuit Breaker 3A 2 Pole 480V 277V C Curve 10KA Miniature
In stock
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$14.89
Allen-Bradley
1492-GS2G150
Allen Bradley 1492-GS2G150 Miniature Circuit Breaker 2 Pole 15A 277/480VAC Ser A
In stock
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$20.89
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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.