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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.
Popular Categories
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Poles
MBKBL3
MBKBL3
In Stock
From
$395.69
Siemens
-
-
MBKFD3250
MBKFD3250
In Stock
From
$2,261.13
Siemens
250
3
MBKFD3A
MBKFD3A
In Stock
From
$308.86
Siemens
-
-
MBKJD3400A
MBKJD3400A
In Stock
From
$1,875.41
Siemens
400
3
MOJ6120
MOJ6120
In Stock
From
$3,569.02
Siemens
-
-
MQ250
MQ250
In Stock
From
$32.65
Murray
50
2
NGB3B045
NGB3B045
In Stock
From
$400.14
Siemens
45
3
P1A18MC250AT
P1A18MC250AT
In Stock
From
$376.41
Siemens
250
-
P1E42MC400AT
P1E42MC400AT
In Stock
From
$970.15
Siemens
400
-
P1X30MC250CT
P1X30MC250CT
In Stock
From
$461.26
Siemens
250
-
P1X30MC400AT
P1X30MC400AT
In Stock
From
$1,070.77
Siemens
400
-
P1X42MC250AT
P1X42MC250AT
In Stock
From
$539.89
Siemens
250
-
PC5663
PC5663
In Stock
From
$4,297.55
Siemens
-
-
Q115AF
Q115AF
In Stock
From
$75.95
Siemens
15
1
Q115AFC
Q115AFC
In Stock
From
$46.75
Siemens
15
1
Q120AF
Q120AF
In Stock
From
$68.74
Siemens
20
1
Q120AFC
Q120AFC
In Stock
From
$56.45
Siemens
20
1
Q2150B
Q2150B
In Stock
From
$206.91
Siemens
150
2
Q21520CTNC
Q21520CTNC
In Stock
From
$39.93
Siemens
20
2
Q21535CT
Q21535CT
In Stock
From
$62.40
Siemens
35
-
Q22050CT
Q22050CT
In Stock
From
$35.37
Siemens
50
2
Q22050CT2
Q22050CT2
In Stock
From
$56.24
Siemens
50
2
Q225
Q225
In Stock
From
$14.12
Siemens
25
2
Q23030
Q23030
In Stock
From
$30.72
Siemens
30
2
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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