Siemens
5SX23
Siemens 5SX23 D20 Circuit Breaker 3-Pole 20A 400V DIN Rail Industrial Electrical
Out of stock
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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.
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ETA
106-P30
ETA 106-P30 2A Thermal Circuit Breaker Single Pole Industrial Electrical PLC OEM
Out of stock
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Siemens
3NP5260
Siemens 3NP5260 Fuse Switch + 3VU1300-1MS00 Motor Circuit Breaker Industrial OEM
Out of stock
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Potter & Brumfield
W93-X112-25
Potter & Brumfield W93-X112-25 Magnetic Hydraulic Circuit Breaker 25A 277VAC OEM
Out of stock
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Siemens
MCSAK216
Siemens MCSAK216 3TY7561-1AA00 Auxiliary Switch Kit Breaker Industrial Part OEM
Out of stock
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Eaton
Eaton Heinemann
Eaton Heinemann
Out of stock
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ABB
296A338-02
ABB 296A338-02 Power Circuit Breaker Service Parts Set of 4 Industrial OEM USA
Out of stock
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Carling
BA3-X0-01-445-211-D
NIB Carling Technologies Circuit Breaker 3Pole 2.5A BA3-X0-01-445-211-D
Out of stock
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Gould
EF3-B015
Gould ITE EF3-B015 Circuit Breaker 600VAC 15A 3 Pole EF3B015 Industrial Bolt-On
Out of stock
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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.