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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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Part Number
PRICE
Manufacturer
Amperage
Poles
HDL36040CAEBKUK
HDL36040CAEBKUK
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUKYP
HDL36040CAEBKUKYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUN
HDL36040CAEBKUN
In Stock
From
$656.62
Square D
40
3
HDL36040CAEBKUNYP
HDL36040CAEBKUNYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUO
HDL36040CAEBKUO
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUOYP
HDL36040CAEBKUOYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUP
HDL36040CAEBKUP
In Stock
From
$583.66
Square D
40
3
HDL36040CAEBKUPYP
HDL36040CAEBKUPYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUR
HDL36040CAEBKUR
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKURYP
HDL36040CAEBKURYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUS
HDL36040CAEBKUS
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKUSYP
HDL36040CAEBKUSYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAEBKYP
HDL36040CAEBKYP
In Stock
From
$583.66
Square D
40
3
HDL36040CAESD
HDL36040CAESD
In Stock
From
$583.66
Square D
40
3
HDL36040CAESDYP
HDL36040CAESDYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAESH
HDL36040CAESH
In Stock
From
$738.70
Square D
40
3
HDL36040CAESHYP
HDL36040CAESHYP
In Stock
From
$656.62
Square D
40
3
HDL36040CAESJ
HDL36040CAESJ
In Stock
From
$656.62
Square D
40
3
HDL36040CAESJYP
HDL36040CAESJYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAESK
HDL36040CAESK
In Stock
From
$738.70
Square D
40
3
HDL36040CAESKYP
HDL36040CAESKYP
In Stock
From
$738.70
Square D
40
3
HDL36040CAESL
HDL36040CAESL
In Stock
From
$656.62
Square D
40
3
HDL36040CAESLYP
HDL36040CAESLYP
In Stock
From
$583.66
Square D
40
3
HDL36040CAESN
HDL36040CAESN
In Stock
From
$738.70
Square D
40
3
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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