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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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MM2900
MM2900
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Siemens
MP-T120
MP-T120
In Stock
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$7.37
Siemens
MS-501
MS-501
In Stock
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$105.70
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MSKM4
MSKM4
In Stock
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$30.30
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MSM-INST
MSM-INST
In Stock
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$118.34
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MXD62S800ALAF
MXD62S800ALAF
In Stock
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$417.25
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NFK3B125
NFK3B125
In Stock
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$2,014.54
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NLK3B500
NLK3B500
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$4,688.50
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P1L30ML400A
P1L30ML400A
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Siemens
P22CSM161
P22CSM161
In Stock
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$45.57
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P22MPS18
P22MPS18
In Stock
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$0.66
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P22MPS19
P22MPS19
In Stock
From
$0.66
Siemens
P22MPS24
P22MPS24
In Stock
From
$0.50
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P22MPS25
P22MPS25
In Stock
From
$0.52
Siemens
P22MPS39
P22MPS39
In Stock
From
$0.52
Siemens
P22MPS81
P22MPS81
In Stock
From
$0.45
Siemens
P230A
P230A
In Stock
From
$155.87
Siemens
P30NPA03
P30NPA03
In Stock
From
$1.27
Siemens
P30NPS01
P30NPS01
In Stock
From
$0.59
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P30NPSBR
P30NPSBR
In Stock
From
$0.34
Siemens
P4390
P4390
In Stock
From
$116.60
Siemens
PA6.6UL94V1
PA6.6UL94V1
In Stock
From
$58.34
Siemens
PAD-4-ENCL
PAD-4-ENCL
In Stock
From
$196.38
Siemens
PB2-001114
PB2-001114
In Stock
From
$6.64
Siemens
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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