Square D
Square D HPA-FYQ Handle Lockoff Kit Q2 FY Frame
Square D HPA-FYQ Handle Lockoff Kit Q2 FY Frame Breaker Electrical Safety Lock
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$6.89
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
Epcos
B43550-S5478-M1
Epcos B43550-S5478-M1 Electrolytic Capacitor 4700uF 450V Surge 500V Industrial
Only 3 left
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$37.89
ABB
S262-B32
ABB S262-B32 Miniature Circuit Breaker 2-Pole 32A 277/480VAC DIN Rail Industrial
Only 4 left
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$36.89
Mersen
TRS1-1/4R
Gould Shawmut TRS1-1/4R Fuse 600V Time Delay Tri-Onic Lot of 6 Electrical Power
Only 1 lot left
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$41.89 / lot of 6
Mersen
A25X400-4
Gould Shawmut A25X400-4 Amp-Trap Semiconductor Fuse 400A 250V Industrial Power
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$39.89
Bussmann
170N3457
Bussmann 170N3457 Typower Silcu High Speed Semiconductor Fuse 110A 660V gR Power
Only 2 left
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$10.89
E-t-a
3120-F324-P7TA-W12DM
E-T-A 3120-F324-P7TA-W12DM Hydraulic Magnetic Circuit Breaker 10A 240VAC 50VDC
Only 1 left
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$49.89
Allen-Bradley
AB-120922
Allen-Bradley AB-120922 REV02 Surge Suppressor 5 Ohm 0.22 MFD RC Snubber Module
In stock
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$9.89
Gould
A70Q100
Gould A70Q100 Amptrap Semiconductor Fuse 100A 700VAC Industrial Electrical Part
Only 2 left
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$43.89
Bussmann
Buss CBC M35 15A 12VDC Cycling Circuit Breaker A
Buss CBC M35 15A 12VDC Cycling Circuit Breaker Automotive Marine Electrical Part
In stock
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$11.89
Bussmann
H60030-3C
Bussmann H60030-3C Fuse Block Holder 3 Pole 30A 600V Class H Electrical Panel
Only 1 left
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$11.89
Siemens
3RV1011-1CA10
Siemens 3RV1011-1CA10 Motor Starter Protector Circuit Breaker 1.8-2.5A Part
Only 4 left
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$7.89
Cole
Cole Hersee 500A Battery Selector Master Disconn
Cole Hersee 500A Battery Selector Master Disconnect Switch 6-36VDC Marine Boat
Only 2 left
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$29.89
Industrial part
1C1550D
Circuit Breaker 70 Amp 1C1550D 19864 Industrial Electrical Power Protection USA
Only 1 left
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$49.89
Daito
32-1043
Daito 32-1043 Alarm Fuse AC250V RC2 500A 20A Rating Industrial Electrical Part
In stock
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$11.00
Siemens
59815
Siemens 59815 Bonding Screw Kit Service Entrance Safety Switch Ground Electrical
Only 1 left
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$9.89
Marathon
4100810-CU-AL
Marathon 4100810-CU-AL Fuse Block Holder 250V 60A Industrial Electrical Part
In stock
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$11.89
Square D
QO310
Square D QO310 Circuit Breaker 3-Pole 10A 240V Plug-In Electrical Panel Part
Only 1 left
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$14.89
Siemens-allis
MSP10F
Siemens-Allis MSP10F A11 Motor Starter Protector 1.0-1.6A 300-600V Industrial
Only 5 left
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$14.89
Siemens
3VU1300-1MF00
Siemens 3VU1300-1MF00 Motor Protection Circuit Breaker 0.6-1A 600VAC Industrial
Only 5 left
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$6.89
General Electric
General Electric SPUVTD Time Delay Module 120VAC
General Electric SPUVTD Time Delay Module 120VAC 125VDC Shunt Trip Industrial
Only 1 left
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$160.89
Industrial part
OZ-1
CBi OZ-1 13D Hy-Mag Circuit Breaker 20A Curve 2 277V UL1077 Industrial Electric
In stock
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$11.89
Cutler-Hammer
HM2P250K5W
Eaton Cutler-Hammer HM2P250K5W Motor Circuit Protector 250A 2-Pole 600V Series C
Only 1 left
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$74.89
Cutler-Hammer
EGH3100FFG
Eaton Cutler-Hammer EGH3100FFG E125H 100A 3-Pole Circuit Breaker 600V Industrial
Only 1 left
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$711.89
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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.