Spend $1,000 Get a FREE Hoodie - Get Yours While Supplies Last  
  1. Home / 
  2. All Categories / 
  3. Circuit Breaker

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
LMKT450TC3
LMKT450TC3
Limited Stock
From
Get Price
Siemens
-
3
LMKT500T
LMKT500T
Limited Stock
From
Get Price
Siemens
-
3
LMKT500TC3
LMKT500TC3
Limited Stock
From
Get Price
Siemens
-
3
LMKT600ECB
LMKT600ECB
Limited Stock
From
Get Price
Siemens
-
3
LMKT600T
LMKT600T
Limited Stock
From
Get Price
Siemens
-
3
LMKT600TC3
LMKT600TC3
Limited Stock
From
Get Price
Siemens
-
3
MBKFD1
MBKFD1
Limited Stock
From
Get Price
Siemens
-
-
MBKJD1300
MBKJD1300
Limited Stock
From
Get Price
Siemens
300
2
MBKJD3300
MBKJD3300
Limited Stock
From
Get Price
Siemens
300
3
MBKNB1
MBKNB1
Limited Stock
From
Get Price
Siemens
-
-
MBKQJ1125H
MBKQJ1125H
Limited Stock
From
Get Price
Siemens
125
2
MBKQJ1150H
MBKQJ1150H
Limited Stock
From
Get Price
Siemens
150
2
MBKQJ1175
MBKQJ1175
Limited Stock
From
Get Price
Siemens
175
2
MBKQJ1175H
MBKQJ1175H
Limited Stock
From
Get Price
Siemens
175
2
MBKQJ1200H
MBKQJ1200H
Limited Stock
From
Get Price
Siemens
200
2
MBKQJ1225H
MBKQJ1225H
Limited Stock
From
Get Price
Siemens
225
2
MBKQJ3125H
MBKQJ3125H
Limited Stock
From
Get Price
Siemens
125
3
MBKQJ3175H
MBKQJ3175H
Limited Stock
From
Get Price
Siemens
175
3
MLKA1
MLKA1
Limited Stock
From
Get Price
Siemens
-
-
MM9301
MM9301
Limited Stock
From
Get Price
Siemens
-
-
MMKT500T
MMKT500T
Limited Stock
From
Get Price
Siemens
-
3
MMKT500TC3
MMKT500TC3
Limited Stock
From
Get Price
Siemens
-
3
MMKT600T
MMKT600T
Limited Stock
From
Get Price
Siemens
-
3
MMKT600TC3
MMKT600TC3
Limited Stock
From
Get Price
Siemens
-
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.

Learn More