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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
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ST905A-400A
ST905A-400A
In Stock
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$140.27
PC&S
5036300V56HZ2
5036300V56HZ2
In Stock
From
$36.61
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LS110DC150V600V
LS110DC150V600V
In Stock
From
$63.97
PC&S
M20111P
M20111P
In Stock
From
$106.97
PC&S
ST125DC10V125
ST125DC10V125
In Stock
From
$47.85
PC&S
ST125DC50MV14
ST125DC50MV14
In Stock
From
$31.17
PC&S
ST125DC50MV3000A
ST125DC50MV3000A
In Stock
From
$31.40
PC&S
ST125DC50MV300A
ST125DC50MV300A
In Stock
From
$28.60
PC&S
ST905A-300A
ST905A-300A
In Stock
From
$40.43
PC&S
ST905A10A
ST905A10A
In Stock
From
$29.27
PC&S
ST905A150A
ST905A150A
In Stock
From
$38.76
PC&S
ST905A200A
ST905A200A
In Stock
From
$128.89
PC&S
ST90DC10V200AACN4
ST90DC10V200AACN4
In Stock
From
$36.40
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ST12550MV1000
ST12550MV1000
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ST125DC50MV9K
ST125DC50MV9K
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ST125DC15V
ST125DC15V
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ST125DC30V
ST125DC30V
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ST125DC50MV1KADC
ST125DC50MV1KADC
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ST125DC50MV500ADC
ST125DC50MV500ADC
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ST125DC50MV40
ST125DC50MV40
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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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