Square D
22000
Square D 20A 22KA 120/240V 250/60HZ 22000 A 120/240V
Only 1 left
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$16.00
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
Square D
FAB36020
Square D FAB36020 20 A 600 V 3-Pole I-Line Thermal Magnetic Circuit Breaker
Only 2 left
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$34.99
Square D
FAL34030
Square D FAL34030 30 A 3-Pole 480 V Thermal-Magnetic Molded Case Breaker
Only 1 left
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$79.99
Square D
Square D 3-Pole 3 A 600 VAC Circuit Breaker Cu-A
Square D 3-Pole 3 A 600 VAC Circuit Breaker Cu-Al Compatible
Only 2 left
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$24.99
Westinghouse
JA-3200
Westinghouse JA-3200 JA-225 200 A 3-Pole Circuit Breaker
Only 1 left
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$79.99
Square D
FAL36003
Square D FAL36003 11m 3 Amp 600 VAC 3Pole FA Frame Thermal Magnetic Molded Case
Only 1 left
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$19.99
Cutler-Hammer
JA3200-U
Eaton Cutler-Hammer JA3200-U 200A 3-Pole 22kA 480/600V Circuit Breaker
Only 1 left
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$559.99
Cutler-Hammer
HFD1020
Cutler Hammer HFD1020 20A 346VAC 1-Pole Series C Circuit Breaker
Only 1 left
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$10.50
Eaton
PDG2
Eaton PDG2 Eaton PDG2 PDG23M0225TFFJ Circuit Breakers 3 Poles 225A 50/60HZ
Only 1 left
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$784.99
Square D
FY14020B-BF-U
Square D FY14020B-BF-U 20 A 277 V 1‑Pole I‑Line Thermal‑Magnetic
Only 5 left
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$109.99
Square D
QOB120-NS
Square D QOB120-NS Miniature Breaker 20 A 120/240 V Bolt-On 10 kA LOT OF 11
Only 1 lot left
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$99.99 / lot of 11
General Electric
TED126100WL
General Electric TED126100WL Circuit Breaker 100A 600VAC 3-Pole
Only 2 left
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$159.99
Mersen
PC30UD69V80TF
Mersen Protistor PC30UD69V80TF High-Speed Fuse 690V 80A Semiconductor
Only 3 left
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$209.99
Airpax
LELK1-1RS4-30452-80
Airpax LELK1-1RS4-30452-80 Magnetic Circuit Breaker 80V 80A Single Pole
Only 1 left
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$10.50
Airpax
102284
Airpax Model 102284 Amp Bullet Style Breaker LELK1-1RS4-30452-70
Only 1 left
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$20.99
Industrial part
SIBA G-Type Fuse Links 700 VAC – 6.3 × 32 mm, Pa
SIBA G-Type Fuse Links 700 VAC – 6.3 × 32 mm, Pack of 10 (G-Fuses)
Only 2 lots left
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$12.00 / lot of 10
Square D
QO230
Square D QO230 2-Pole 30A Circuit Breaker – 120/240 V AC, QO Series by Schneider
Only 1 left
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$19.99
Mersen
TRS2R
Gould Shawmut TRS2R 2A 600VAC RK1 Class Tri-Onic Time-Delay Fuse
Only 1 left
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$10.00
Fusetron
FRS-R-50
Fusetron FRS-R-50 50A 600VAC/300VDC RK5 Class Dual-Element Time Delay Fuse
Only 1 left
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$10.00
Mersen
TRS35R
Ferraz Shawmut TRS35R 35A 300VDC RK1 Class Tri-Onic Dual-Element Time Delay
Only 1 left
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$10.00
Mersen
TRS50R
Ferraz Shawmut TRS50R Tri-Onic 50A 600VAC/300VDC RK1 Time Delay Fuse
Only 1 left
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$10.00
Fusetron
FRS-R-5
Fusetron FRS-R-5 5A 600VAC Class RK5 Dual Element Time Delay Fuse LOT OF 3
Only 1 lot left
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$10.50 / lot of 3
Mersen
TRS175R
Gould Shawmut TRS175R Tri-Onic 175A 600VAC RK1 Dual Element Time Delay LOT OF 4
Only 1 lot left
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$13.00 / lot of 4
Fusetron
FRS-70
Fusetron FRS-70 70A 600VAC Class RK5 Dual Element Time Delay Fuse
Only 1 left
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$10.50
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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.