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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
MCP431550CR
MCP431550CR
In Stock
From
$349.69
Cutler Hammer
150
3
MCP431550R
MCP431550R
In Stock
From
$754.87
Cutler Hammer
150
3
MCP431550RC
MCP431550RC
In Stock
From
$983.43
Cutler Hammer
150
3
MCP431800CR
MCP431800CR
In Stock
From
$406.47
Cutler Hammer
150
3
MCP431800R
MCP431800R
In Stock
From
$812.94
Cutler Hammer
150
3
MCP532500
MCP532500
In Stock
From
$1,175.97
Cutler Hammer
250
3
MCP534000
MCP534000
In Stock
From
$1,203.80
Cutler Hammer
400
3
MCP534000C
MCP534000C
In Stock
From
$909.51
Westinghouse
400
3
MD2350
MD2350
In Stock
From
$926.31
Cutler Hammer
350
2
MD3800F
MD3800F
In Stock
From
$1,942.08
Eaton
800
3
MD62B500L
MD62B500L
In Stock
From
$6,657.53
Siemens
500
2
MD62B600
MD62B600
In Stock
From
$6,599.05
Siemens
600
2
MD62F800
MD62F800
In Stock
From
$7,163.97
Siemens
800
2
MD63F800
MD63F800
In Stock
From
$1,793.43
Siemens
800
3
MD63T800
MD63T800
In Stock
From
$1,154.21
Siemens
-
3
MDL2800F
MDL2800F
In Stock
From
$1,020.83
Eaton
800
2
MDLB3300
MDLB3300
In Stock
From
$3,321.11
Westinghouse
300
3
MDLB3400
MDLB3400
In Stock
From
$3,598.19
Westinghouse
400
3
MDLB3500
MDLB3500
In Stock
From
$3,321.13
Eaton
500
3
MDLB3600
MDLB3600
In Stock
From
$2,254.70
Westinghouse
600
3
MDLB3700
MDLB3700
In Stock
From
$2,252.33
Westinghouse
700
3
MDLB3800
MDLB3800
In Stock
From
$3,214.55
Westinghouse
800
3
MDLB3800FT33W
MDLB3800FT33W
In Stock
From
$5,432.34
Eaton
800
3
MDLB3800W
MDLB3800W
In Stock
From
$3,214.55
Westinghouse
800
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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