3M
MVU14-250DMX
3M Scotchlok MVU14-250DMX Male Disconnect Blue 100-Pack Insulated Industrial OEM
Only 3 lots left
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$18.89 / lot of 100
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
Bussmann
NON-45
Cooper Bussmann NON-45 Cartridge Fuse 45A 250V Class K5 One-Time Industrial OEM
Only 4 left
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$6.89
Bussmann
GLR-1
Bussmann GLR-1 Fast Acting GLR Series Glass Fuse 1A 300VAC Industrial OEM Part
In stock
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$11.89
Fusetron
FRS-R-17-1/2
Fusetron FRS-R-17-1/2 17.5A 600V Class RK5 Time Delay Fuse Industrial OEM Part
In stock
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$13.89
Littelfuse
Littelfuse FLSR 3-1/2 Time Delay Fuse 3.5A 600V
Littelfuse FLSR 3-1/2 Time Delay Fuse 3.5A 600V Class RK5 Industrial OEM Part
Only 2 left
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$11.89
Matsushita
FA-10
Matsushita BMF 9911 Surge Damper I FA-10 FC-25 240VAC Industrial Automation OEM
In stock
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$23.89
Matsushita
ERZ-A20PK-102
Matsushita ERZ-A20PK-102 ZNR Surge Absorber 520VAC Industrial Electronic OEM
In stock
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$14.89
Mersen
A50P80-4
Shawmut A50P80-4 80A 500V Semiconductor Fuse Industrial Power Protection OEM
Only 2 left
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$9.00
Bussmann
XL70F175
Bussmann Eaton XL70F175 Semiconductor Fuse 175A 700V Industrial Power Protection
Only 5 left
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$42.89
Siemens
5SX23
Siemens 5SX23 C1 Miniature Circuit Breaker MCB 1A 400V 3-Pole DIN Rail Mount OEM
Only 1 left
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$10.89
Schurter
1241.3152
Schurter 1241.3152 Thermal Circuit Breaker Switch Industrial Electrical Control
Only 2 left
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$19.89
Sensata Airpax
IEG1-1REC5-29364-2-V
Sensata Airpax IEG1-1REC5-29364-2-V Circuit Breaker 80 VDC 10A Hydraulic OEM US
In stock
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$17.89
Square D
FA32015
Square D FA32015 Circuit Breaker 15A 600V 3 Pole I-Line 240V Industrial OEM USA
Only 1 left
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$28.89
Brush
XL50F60
Brush XL50F60 Semiconductor Fuse 60A 500V High Speed Industrial Replacement OEM
Only 4 left
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$11.89
Brush
XL-50P60
Brush XL-50P60 Semiconductor Fuse 60A High Speed Industrial Replacement OEM USA
Only 1 left
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$16.89
Siemens
3NP5260
Siemens 3NP5260 Fuse Switch + 3VU1300-1MS00 Motor Circuit Breaker Industrial OEM
Only 4 left
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$99.89
Bussmann
FWH-10A14FA
Bussmann FWH-10A14Fa Semiconductor Fuse 10A 500V 200kA Industrial Electrical OEM
Only 1 left
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$43.89
Westinghouse
GFM2
Westinghouse GFM2 Ground Fault Sensor Relay 5A Rating Plug 480V SPDT Industrial
Only 2 left
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$62.89
Hitachi
EB-50C
Hitachi Kokusai EB-50C 2P 15A DIN Rail Circuit Breaker EB50C Industrial OEM
Only 1 left
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$51.89
Bussmann
FNM-3-2/10
Bussmann FNM-3-2/10 Time Delay Fuse 3.2A 250VAC Fusetron Industrial Midget Slow
Only 2 left
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$11.89
3M
MU14-187DF
3M Scotchlok Highland MU14-187DF FLAGX Quick Disconnect Terminal 16-14 AWG 90PK
Only 1 lot left
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$92.89 / lot of 90
Industrial part
38-201-01
Conbraco Apollo 38-201-01 1/4 NPT Vacuum Breaker Forged Body Brass Industrial
Only 1 left
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$48.89
Bussmann
BAF-1/2
Bussmann BAF-1/2 0.5A 250V Fast Acting Midget Fuse 13/32 x 1-1/2 Industrial OEM
Only 4 left
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$11.89
Legrand
21404
Legrand 21404 DIN Rail Mount Fuse Holder 3 Position 10x38 Cartridge Industrial
Only 3 left
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$16.89
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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.