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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
MD2500
MD2500
In Stock
From
$1,601.92
Eaton
500
2
MD2500W
MD2500W
In Stock
From
$2,671.65
Cutler Hammer
500
2
MD2600
MD2600
In Stock
From
$1,495.43
Westinghouse
600
2
MD2600W
MD2600W
In Stock
From
$1,481.15
Westinghouse
600
2
MD2700
MD2700
In Stock
From
$1,538.88
Eaton
700
2
MD2700W
MD2700W
In Stock
From
$2,719.39
Westinghouse
700
2
MD2800
MD2800
In Stock
From
$1,877.52
Cutler Hammer
800
2
MD2800F
MD2800F
In Stock
From
$469.99
Westinghouse
800
2
MD2800W
MD2800W
In Stock
From
$2,138.65
Eaton
800
2
MD3600
MD3600
In Stock
From
$3,189.17
Eaton
600
3
MD3600W
MD3600W
In Stock
From
$3,189.17
Eaton
600
3
MD3700
MD3700
In Stock
From
$2,912.18
Eaton
700
3
MD3700W
MD3700W
In Stock
From
$2,790.72
Eaton
700
3
MDL3800A02
MDL3800A02
In Stock
From
$5,439.13
Eaton
800
3
MDLB3300W
MDLB3300W
In Stock
From
$1,843.19
Cutler Hammer
300
3
MDLB3350W
MDLB3350W
In Stock
From
$1,300.79
Eaton
350
3
MDLB3400W
MDLB3400W
In Stock
From
$6,008.23
Westinghouse
400
3
MDLB3450
MDLB3450
In Stock
From
$3,777.88
Cutler Hammer
450
3
MDLB3450W
MDLB3450W
In Stock
From
$1,562.47
Westinghouse
450
3
MDLB3500W
MDLB3500W
In Stock
From
$1,965.91
Westinghouse
500
3
MDLB3600W
MDLB3600W
In Stock
From
$1,971.22
Westinghouse
600
3
MDLB3700W
MDLB3700W
In Stock
From
$1,710.09
Eaton
700
3
NB21000
NB21000
In Stock
From
$525.94
Westinghouse
1000
2
NB21000PR
NB21000PR
In Stock
From
$4,008.26
Westinghouse
1000
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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