Siemens
5SY4120-5
Siemens 5SY4120-5 Miniature Circuit Breaker MCB 1 Pole 20A A20 230 400V 10kA
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$37.89
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 & Accessories827 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
ABB
S202-K2
ABB S202-K2 Miniature Circuit Breaker 2 Pole 2A K Curve 277 480VAC DIN Rail
Only 1 left
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$13.89
Allen-Bradley
194R-PY
Allen-Bradley 194R-PY Ser A Rotary Disconnect Operating Handle Switch Industrial
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$46.89
WAGO
WAGO 280 Series 4 Conductor Disconnect DIN Rail
WAGO 280 Series 4 Conductor Disconnect DIN Rail Terminal Block 800V 20A LOT OF 5
Only 1 lot left
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$19.99 / lot of 5
ABB
S201-B25
ABB S201-B25 Miniature Circuit Breaker 1 Pole 25A B Curve 230 400V DIN Rail
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$46.89
Economy
ERS90
Economy FPE ERS90 Renewable Cartridge Fuse 90 Amp 600V Class H Federal 2/ORDER
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$17.99
Cooper
M60030-2SQ
Cooper Industries M60030-2SQ 2 Pole Fuse Block Holder 30A 600V 20A LOT OF 8
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$80.89 / lot of 8
Bussmann
RES-6
Bussmann RES-6 Super Lag Renewable Cartridge Fuse Class H 6 Amp 600V 8/ORDER
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$63.89
Furnas
75P1046
Furnas Electric 75P1046 Fuse Clip Kit 9 Clips 30 Amp 600V 60 Amp 250V LOT OF 1
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$10.89
Underwriters
581-G
Underwriters Safety Device 581-G 60100 Fuseholder Block 100A 600V Panel 2/ORDER
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$227.89
Bussmann
RES-6
Bussmann RES-6 Super Lag Renewable Cartridge Fuse 6 Amp 600V AC Class H 8/ORDER
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$69.89
Bakelite
Bakelite Phenolic 3 Pole Fuse Block Terminal Str
Bakelite Phenolic 3 Pole Fuse Block Terminal Strip Screw Clips Electrical Part
In stock
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$12.99
Eaton
ZAV-P3
Eaton Moeller ZAV-P3 SPX-ZAV-P3Q Disconnect Switch Extension Shaft Rod LOT OF 10
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$52.89 / lot of 10
General Electric
TQD32200
GE TQD32200 Mounting Lug Kit for Circuit Breaker Terminal Industrial Electrical
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$199.89
Cutler-Hammer
CHB9H
Cutler Hammer CHB9H 3 Pole Circuit Breaker Industrial Electrical Panel Component
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$39.89
General Electric
15D6G3
GE 15D6G3 Quick Close Magnetic Coil 230V 60Hz Contactor Breaker Industrial Part
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$133.89
Eaton
AM2R-A3-LC-07-D-DU
Eaton Heinemann AM2R-A3-LC-07-D-DU 2 Pole Circuit Breaker 5A 240V Panel Mount
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$74.89
Underwriters
11220
Underwriters Safety Device 11220 3 Pole Fuse Block 100A 600V Class J CU-AL Lug
In stock
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$49.99
General Electric
General Electric 30 Amp Single Pole Plug In Circ
General Electric 30 Amp Single Pole Plug In Circuit Breaker Panel Load Center
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$10.89
3M
5X429
3M Highland 5X429 Male Tab Disconnect Terminal.250in 22-18AWG Box of 64
Only 1 lot left
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$14.89 / lot of 64
Siemens
5ST3020
Siemens 5ST3020 Fault Signal Contact Auxiliary Switch 1NO 1NC MCB Din Rail Mount
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$12.89
Moeller
EZ00
Klockner Moeller EZ00 Base Adapter Holder for Z00 Motor Protective Relay 3-Phase
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$49.89
Eaton
UNS15070A1C1C1A
Eaton Cooper Power UNS15070A1C1C1A UltraSIL VariSTAR MOV Arrester 15KV 12.7 MCOV
In stock
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$199.99
Eaton
FL27K30
Eaton McGraw-Edison FL27K30 Type K Fuse Link 30 Amp 27KV Cooper Power Cutout
In stock
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$50.89
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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.