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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case 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.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
0230
0230
In Stock
From
$8.39
Federal Pacific
30
240
030
030
In Stock
From
$30.29
Federal Pacific
30
120
1244C52G05
1244C52G05
In Stock
From
$4,122.61
Eaton
30
500
1313579
1313579
In Stock
From
$1,614.24
Westinghouse
600
600
140M-C2E-B10-CC-KY
140M-C2E-B10-CC-KY
In Stock
From
$252.24
Allen-Bradley
1
600
140M-C2E-B25-KY-XC
140M-C2E-B25-KY-XC
In Stock
From
$321.46
Allen-Bradley
2.5
600
140M-C2E-C16-KY
140M-C2E-C16-KY
In Stock
From
$161.70
Allen-Bradley
16
-
140M-D8N-B25-BX
140M-D8N-B25-BX
In Stock
From
$304.26
Allen-Bradley
2.5
-
140M-D8N-C32
140M-D8N-C32
In Stock
From
$975.73
Allen-Bradley
32
-
140M-D8V-B16
140M-D8V-B16
In Stock
From
$549.17
Allen-Bradley
1.6
-
140M-D8V-B25
140M-D8V-B25
In Stock
From
$391.05
Allen-Bradley
2.5
-
140M-D8V-C16
140M-D8V-C16
In Stock
From
$876.29
Allen-Bradley
16
-
140M-I8P-B30
140M-I8P-B30
In Stock
From
$144.00
Allen-Bradley
3
600
140M-I8P-B70S-CX
140M-I8P-B70S-CX
In Stock
From
$133.33
Allen-Bradley
7
600
140M-I8P-B70S-CXM
140M-I8P-B70S-CXM
In Stock
From
$210.55
Allen-Bradley
7
600
140M-I8P-C15S-M
140M-I8P-C15S-M
In Stock
From
$284.98
Allen-Bradley
15
600
140M-I8P-C30S-CX
140M-I8P-C30S-CX
In Stock
From
$270.13
Allen-Bradley
30
600
140M-I8P-C30S-M
140M-I8P-C30S-M
In Stock
From
$135.91
Allen-Bradley
30
600
140MG-G8P-B30
140MG-G8P-B30
In Stock
From
$368.75
Allen-Bradley
3
600
140MG-G8P-B70
140MG-G8P-B70
In Stock
From
$647.31
Allen-Bradley
7
600
140MG-G8P-C15
140MG-G8P-C15
In Stock
From
$496.75
Allen-Bradley
15
600
140MG-G8P-C50
140MG-G8P-C50
In Stock
From
$471.38
Allen-Bradley
50
600
140MG-G8P-C70
140MG-G8P-C70
In Stock
From
$1,171.12
Allen-Bradley
70
600
140MG-G8P-D12
140MG-G8P-D12
In Stock
From
$1,181.07
Allen-Bradley
125
600
Popular Molded Case Circuit Breaker Manufacturers

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities 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 molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case 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.