Allen-Bradley
1492-WFB10
Allen-Bradley 1492-WFB10 Fuse Holder Terminal Block 800V 1 Pole DIN Rail Mount
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$9.89
Circuit Breakers, Fuses & Protection
3,515 listings · 3,456 in stock
3,515 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 Blocks253 in stock
- Disconnect & Safety Switches206 in stock
- Molded Case Circuit Breakers131 in stock
- Surge Protection & Ground Fault127 in stock
- Protective & Monitoring Relays30 in stock
Industrial part
XG-PCS-15D
Ricoh ESP XG-PCS-15D Next Gen PCS Power Conditioning Surge Protector 120V 15A
Only 1 left
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$15.89
Westinghouse
EB2020
Westinghouse EB2020 Circuit Breaker 20 Amp 2 Pole 240VAC 125/250VDC 4990D03G19
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$19.89
Stromberg
OETL-NF600A
Stromberg OETL-NF600A General Purpose Disconnect Switch 600A 600V 3 Pole 500HP
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$254.89
Westinghouse
KT3400T
Westinghouse KT3400T 400A 3 Pole Thermal Magnetic Trip Unit KD HKD KDC Breaker
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$94.89
Square D
H361RB
Square D H361RB Heavy Duty Safety Switch 30A 600V Fusible 3 Pole NEMA 3R Outdoor
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$39.89
Square D
DU321
Square D DU321 General Duty Safety Switch 30A 240V 3 Pole Non-Fusible Series E2
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$26.89
Areva
FX22
Areva T&D VL 960 581 002 OP4-5 Spare Block for FX22 Circuit Breaker 120 771
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$3,033.89
Phoenix Contact
3-HESI
Phoenix Contact UK 6,3-HESI Fuse Modular Terminal Block 5x20mm DIN Rail Mount
In stock
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$9.89
Industrial part
AC-21
3 Pole Rotary Disconnect Switch 125A AC-21 660V IEC 947-3 VDE 0660 Main Switch
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$42.89
Square D
FA14020A
Square D FA14020A Circuit Breaker 1 Pole 20 Amp 277VAC Type FA I-Line Electrical
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$20.89
Eaton
MST2 2A11791G02
Eaton MST2 2A11791G02 Shunt Trip Field Option Kit 208-240VAC 220-250VDC Breaker
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$359.89
Westinghouse
EHD3040
Westinghouse EHD3040 Series C Circuit Breaker EHD14K 40A 480V 3 Pole Industrial
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$53.89
Westinghouse
EHD3015
Westinghouse EHD3015 Series C Circuit Breaker EHD14K 15A 480V 3 Pole Industrial
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$21.89
Westinghouse
EHD3020
Westinghouse EHD3020 Series C Circuit Breaker EHD14K 20A 480V 3 Pole Industrial
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$26.89
Littelfuse
FLSR20ID
Littelfuse FLSR 20 ID FLSR20ID Indicator Time Delay Fuse 20A 75-600V Class RK5
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$9.89
Crouzet
LWRS220A
Crouzet Syrelec LWRS 220VAC Three Phase Monitor Relay SPDT 10A 11 Pin LWRS220A
In stock
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$98.89
Telemecanique
GB2-CB07
Telemecanique GB2-CB07 Miniature Circuit Breaker 2A 1 Pole 380-415V 50/60Hz DIN
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$9.89
General Electric
General Electric V-Line C1 Miniature Circuit Bre
General Electric V-Line C1 Miniature Circuit Breaker 1 Amp 2 Pole 277/480V DIN
Only 1 left
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$16.89
Merlin Gerin
C32N
Merlin Gerin Multi 9 C32N Miniature Circuit Breaker 40A Type D 3 Pole 380-415V
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$39.89
Merlin Gerin
MULTI9
Merlin Gerin Multi9 C60N 6A Type C 2 Pole Miniature Circuit Breaker 480VAC DIN
In stock
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$9.89
ABB
S3N
ABB SACE Isomax S3N 40A 3 Pole Circuit Breaker with Rotary Handle Operator Aux
In stock
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$179.89
Bussmann
170M1368
Bussmann 170M1368 Square Body Semiconductor Fuse 125A 660V aR with Bus Bar Links
Only 3 left
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$16.89
Hammond
143206
Hammond 143206 Control Transformer 150VA 208-600V 115V Gould 30322R Fuse Holder
Only 3 left
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$39.89
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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.