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Circuit Breaker

For power distribution and electrical protection systems, circuit breakers are among the most critical components for safeguarding equipment, personnel, and facilities from electrical overloads and short circuits. Circuit breakers automatically interrupt electrical current flow when abnormal conditions are detected, protecting circuits from damage while allowing manual reset and continued operation. Electrical.com carries an extensive selection of circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
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Manufacturer
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Westinghouse
21-B143QJ6
21-B143QJ6
In Stock
From
$64.45
Hardware Resource Company
21-A131FD4
21-A131FD4
In Stock
From
$142.71
Hardware Resource Company
21-A132FB1
21-A132FB1
In Stock
From
$218.97
Eaton
21-A141CA4
21-A141CA4
In Stock
From
$61.81
Hardware Resource Company
21-A142CA1
21-A142CA1
In Stock
From
$240.57
Hardware Resource Company
21-A142FD1
21-A142FD1
In Stock
From
$150.08
Hardware Resource Company
21-A151JD1
21-A151JD1
In Stock
From
$347.38
Hardware Resource Company
21-A152KB1
21-A152KB1
In Stock
From
$316.37
Hardware Resource Company
21-A161KD4
21-A161KD4
In Stock
From
$476.05
Hardware Resource Company
21-A162LA4
21-A162LA4
In Stock
From
$337.04
Hardware Resource Company
21-A172LD3
21-A172LD3
In Stock
From
$303.64
Hardware Resource Company
21-A181MD4
21-A181MD4
In Stock
From
$693.55
Hardware Resource Company
21-B128SE6
21-B128SE6
In Stock
From
$171.25
Hardware Resource Company
21-B134EH3
21-B134EH3
In Stock
From
$117.38
Hardware Resource Company
21-B168SJ6
21-B168SJ6
In Stock
From
$294.03
Hardware Resource Company
21-B178SL6
21-B178SL6
In Stock
From
$545.45
Hardware Resource Company
21-C142NEJ
21-C142NEJ
In Stock
From
$228.33
Hardware Resource Company
21-C145NEJ
21-C145NEJ
In Stock
From
$429.90
Hardware Resource Company
21-C162NJL
21-C162NJL
In Stock
From
$400.20
Hardware Resource Company
21-D136TED
21-D136TED
In Stock
From
$171.80
Hardware Resource Company
21-D146TQD
21-D146TQD
In Stock
From
$178.18
Hardware Resource Company
21-D147TQD
21-D147TQD
In Stock
From
$335.22
Hardware Resource Company
21-D186TB8
21-D186TB8
In Stock
From
$1,063.96
Hardware Resource Company
Popular Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified circuit protection equipment available for immediate shipment. From residential to industrial applications, across all voltage and amperage ratings, we have what you need when others say no. Our comprehensive circuit breaker inventory spans all voltage classes, amperage ratings, and pole configurations from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our circuit breakers serve critical applications across manufacturing facilities, commercial buildings, data centers, healthcare facilities, utilities and power generation, industrial plants, residential construction, telecommunications infrastructure, and process control installations.


Whether you're maintaining legacy equipment with obsolete circuit breaker models or sourcing current production components for new electrical systems, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime and keep your operations running. Need circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.

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