Sensata Airpax
219-4-21341-5
Sensata Airpax 219-4-21341-5 Circuit Breaker 4-Pole 50/60Hz 1820Y15A Electrical
Only 4 left
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$214.89
Circuit Breakers & Accessories
921 listings · 813 in stock
921 circuit breakers & accessories listings from the brands you use, each one photographed. Free shipping to all 50 US states.
Weekly new-arrivals email for Circuit Breakers & Accessories
Sensata Airpax
219-3-8303-3
Sensata Airpax 219-3-8303-3 Circuit Breaker 3-Pole 26A 480VAC 66U1-7842-3 Part
In stock
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$165.89
Sensata Airpax
219-3-34680-972
Sensata Airpax 219-3-34680-972 Circuit Breaker 3-Pole 100A 277/480VAC HH83XB972
In stock
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$97.89
Sensata Airpax
219-3-28779-46
Sensata Airpax 219-3-28779-46 Circuit Breaker 3-Pole 40.2A 600VAC X13050337-46
In stock
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$74.89
Sensata Airpax
219-3-28779-08
Sensata Airpax 219-3-28779-08 Circuit Breaker 3-Pole 31.9A 480VAC X13050337-08
In stock
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$101.89
Sensata Airpax
219-3-2600-443
Sensata Airpax 219-3-2600-443 Circuit Breaker 3-Pole 10A 600VAC HH83XB443-B US
In stock
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$125.89
Potter & Brumfield
W69-A2Q12-25
Potter Brumfield W69-A2Q12-25 Circuit Breaker 3-Pole 25A 277VAC Industrial
In stock
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$20.89
Heinemann
JA2-Z520-1
Heinemann JA2-Z520-1 Circuit Breaker 2-Pole 20A 250V 50/60Hz Industrial Control
In stock
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$10.89
Altech
2BU10
Altech 2BU10 Circuit Breaker 10A 480Y/277V AC 2-Pole B Curve DIN Rail Industrial
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$14.89
Airpax
219-3-8303-13
Airpax 219-3-8303-13 Hydraulic Magnetic Circuit Breaker 25A 600V 3 Pole 50/60Hz
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$80.89
Stanley
BR1101W-TR
Stanley Electric BR1101W-TR Red LED 1206 SMD 1.6MCD 20mA 1.7V Lot of 1000 Reel
Only 1 lot left
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$290.89 / lot of 1,000
Westinghouse
1418855
Westinghouse 1418855 Auxiliary Switch Circuit Breaker Contact Block Lot of 2
Only 1 lot left
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$102.89 / lot of 2
Phoenix Contact
TMC-1-M1-200-10A
Phoenix Contact TMC-1-M1-200-10A Thermal Circuit Breaker 10A DIN Rail AC250V
Only 1 left
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$8.89
Square D
Square D Box Lug Connector Wire Terminal Breaker
Square D Box Lug Connector Wire Terminal Breaker Panelboard 16-4 AWG Lot of 12
Only 5 lots left
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$10.89 / lot of 12
Siemens
PL03
Siemens PL03 Padlocking Device for P1 Circuit Breakers Lockout Pack of 10 New
Only 2 lots left
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$28.89 / lot of 10
Merlin Gerin
38012
Merlin Gerin Compact CE 104N 38012 Circuit Breaker 60A 2-Pole 480Y/277V 50/60Hz
Only 2 left
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$70.89
Eaton
AM1R-Z875-3
Eaton Heinemann AM1R-Z875-3 Circuit Breaker 20 Amp 80VDC Curve P Non-Time Delay
In stock
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$10.89
Mitsubishi
NF400-CA
Mitsubishi NF400-CA No-Fuse Circuit Breaker 300 Amp 3 Pole Industrial Electrical
Only 1 left
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$172.89
Klixon
CA-2
Klixon CA-2 1021 Thermal Circuit Breaker 2 Amp Auto Reset Aviation Industrial
Only 5 left
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$10.89
Mitsubishi
NF30-SB
Mitsubishi NF30-SB 3A No Fuse Circuit Breaker 3 Pole 220VAC 600V NF30SB Japan
Only 1 left
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$19.89
Siemens
NDK3B100L
Siemens NDK3B100L VL Circuit Breaker 100A 3 Pole Thermal Magnetic 35kA 480V DG
Only 1 left
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$404.89
Carling
CA1-B2-46-450-121-C
Carling Technologies CA1-B2-46-450-121-C Hydraulic Magnetic Circuit Breaker 277V
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$24.89
Merlin Gerin
Multi9
Merlin Gerin Multi9 C60N 24516 1A Type D 1-Pole Circuit Breaker 277V Schneider
Only 4 left
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$14.89
Cutler-Hammer
HFDDC3200W
Eaton Cutler-Hammer HFDDC3200W 200A 3-Pole 600VDC Circuit Breaker HFD-DC Solar
Only 1 left
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$792.89
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Guides for Circuit Breakers & Accessories
- 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.