Siemens
Q240
Siemens Q240 60HZ 120/240V 40A 2 Poles
In stock
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$15.00
Circuit Breakers, Fuses & Protection
3,524 listings · 3,464 in stock
3,524 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 & Accessories829 in stock
- Miniature & DIN Rail Circuit Breakers308 in stock
- Fuse Holders & Fuse Blocks254 in stock
- Disconnect & Safety Switches207 in stock
- Molded Case Circuit Breakers132 in stock
- Surge Protection & Ground Fault129 in stock
- Protective & Monitoring Relays30 in stock
Eaton
BR140
Eaton BR140 C140 120/240V Hacr Type 1POLE E7819-T
Only 1 left
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$26.00
General Electric
TFK236T125
GE Molded Case Circuit Breaker TFK236T125 Model 4 125AMPS 600V AC 250VDC 3POLES
Only 1 left
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$444.99
Cutler-Hammer
HMCP070J2
Cutler-Hammer HMCP070J2 70A 3-Pole Series C Motor Protector 600V
Only 1 left
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$649.99
Cutler-Hammer
CH115
Cutler-Hammer Eaton CH115 1-Pole Circuit Breaker 120/240V
Only 1 left
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$10.50
Mersen
Ferraz Shawmut Ultrasafe Class CC Fuse USCCII 60
Ferraz Shawmut Ultrasafe Class CC Fuse USCCII 600V 30A
In stock
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$12.00
Square D
EGB14020
Square D EGB14020 1-Pole 20 A Mini Circuit Breaker 277 VAC
Only 1 left
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$13.00
Siemens
NGB1B020
Siemens NGB1B020 125-347V 50/60HZ
Only 1 left
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$10.50
Square D
QOB1151021
Square D 15A QOB1151021 Bolt-ON Circuit Breaker 120/240V 50/60HZ
Only 1 left
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$179.99
Siemens
NGB1B020B
Siemens NGB1B020B 1-Pole 20A Thermal Magnetic Circuit Breaker 277VAC 25kAIC
Only 2 left
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$22.99
Eaton
782116-34736
Eaton KHMVD Variable Depth Handle Mechanism 782116-34736 Circuit Breaker
In stock
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$54.99
Industrial part
MCAB1
1” Breakaway Coupling MCAB1 Fuel Hose Safety Disconnect Valve
Only 4 left
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$44.99
Graco
110198
Graco 110198 Air Line Coupler 3/8” NPT Female Quick Disconnect Fitting
Only 5 left
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$49.99
Mersen
USCC3
Ferraz Shawmut USCC3 UltraSafe Class CC Fuse Holder 30A 600V 3-Pole
In stock
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$14.00
Eaton
FAZ-D3/3-NA
Eaton FAZ-D3/3-NA Circuit Breaker A08IF 480Y/277V 3-Pole
Only 1 left
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$19.99
Mersen
USCC3
Ferraz Shawmut USCC3 F31010 UltraSafe Fuse Holder 6A 600V
Only 1 left
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$14.00
Mersen
USCC2
Ferraz Shawmut USCC2 P216489 UltraSafe Fuse Holder 2-Pole 30A 600V
Only 3 left
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$14.00
Mersen
USCC1
Ferraz Shawmut USCC1 B213441 UltraSafe Class CC Fuse Holder 30A 600V
In stock
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$14.00
Industrial part
F32514
CHCC F32514 10A F32512 10A Fuse Holder 600V 30A
Only 1 left
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$14.00
Industrial part
F30214
CHCC F30214 5A Fuse Holder 200kA 600V
Only 1 left
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$14.00
Allen-Bradley
1492-CB1
Allen-Bradley 1492-CB1 Series C Circuit Breaker 3A 277V DIN Rail Mount
Only 1 left
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$10.50
Edison
Edison Ehcc Fuseholder
Edison Ehcc Fuseholder
Only 3 left
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$15.00
Bullet
Bullet Breaker 10227930A 3-Pole E-Trip White Han
Bullet Breaker 10227930A 3-Pole E-Trip White Handle Industrial Circuit Breaker
Only 1 left
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$2,009.69
Federal Mogul
PG4044
Federal Mogul Glyco PG4044 20A Cartridge Fuse (5-Pack) Boxed
Only 1 lot left
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$29.99 / lot of 5
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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.