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
Circuit Breakers & Accessories
833 listings · 820 in stock
833 circuit breakers & accessories listings from the brands you use, each one photographed. Free shipping in the lower 48.
Weekly new-arrivals email for Circuit Breakers & Accessories
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
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
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
Cutler-Hammer
KPEK1
Eaton / Cutler-Hammer KPEK1 3-Pole F-Frame Breaker End-Cap Kit Accessory
Only 1 left
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$16.00
Square D
QOB230
Square D QOB230 2-Pole 30A 240VAC Bolt-On Breaker Replacement QOB Series
Only 1 left
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$12.00
Square D
QOB230
Square D QOB230 Shunt Trip Circuit Breaker
Only 1 left
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$139.99
General Electric
THQLRK1
General Electric THQLRK1 Main Breaker Retainer for PowerMark Gold 150–225 A
Only 1 left
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$14.00
Square D
Square D 4020513001K Cover Trim Screw Kit 1/2” Q
Square D 4020513001K Cover Trim Screw Kit 1/2” QO/Homeline BAG OF 10
In stock
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$12.00 / lot of 10
Eaton
FD1040
Eaton FD1040 1-Pole 40A 277VAC Industrial Circuit Breaker 40°C LOT OF 8
Only 1 lot left
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$389.99 / lot of 8
Sprecher + Schuh
KTU7-D-2D-12AB
Sprecher+Schuh KTU7-D-2D-12AB Circuit Breaker Terminal Block OEM Part
Only 3 left
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$109.99
Sprecher + Schuh
LFS2-G-6-175
Sprecher+Schuh LFS2-G-6-175 Ser A Circuit Breaker / Fuse Holder OEM
Only 1 left
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$19.99
Sprecher + Schuh
Sprecher+Schuh L8-3/2/C Ser B Circuit Breaker 2A
Sprecher+Schuh L8-3/2/C Ser B Circuit Breaker 2A 3 Pole Industrial OEM
Only 4 left
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$59.99
Cutler-Hammer
FS340015AL-NS
Eaton Cutler-Hammer FS340015AL-NS Circuit Breaker 15A 600V OEM
Only 1 left
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$159.99
General Electric
TED126100WL
GE TED126100WL Circuit Breaker 100A 2 Pole 600VAC Industrial OEM
Only 1 left
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$174.99
Sprecher + Schuh
480Y/277V
Sprecher+Schuh L9-20/3/C 3-Pole C-Curve Circuit Breaker 20A 480Y/277V
In stock
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$334.99
Schneider Electric
GV2-P01
Schneider Electric GV2-P01 0.1-0.16A
Only 4 left
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$23.00
Telemecanique
GV2-P32
Telemecanique Schneider Electric GV2-P32 24-32A 24-30A
In stock
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$49.99
Industrial part
UAS-16D3-16P
Susol UAS-16D3-16P Low Voltage AC Power Circuit Breaker 1600A Amp 635VAC 3P
Only 4 left
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$5,074.00
Schneider Electric
GV2ME20
Schneider Electric GV2ME20 13-18A 690V 6KV 50/60HZ 120-600VAC 1-15HP
In stock
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$14.00
Telemecanique
GV2ME10
Telemecanique Square D GV2ME10 / 4-6.3A 690V 6KV 50/60HZ 120-600VAC
Only 3 left
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$15.00
Telemecanique
GV2ME03
Telemecanique Square D GV2ME03 / 0.25-0.4A 690V 6KV 50/60HZ 120-600VAC
Only 2 left
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$14.00
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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.