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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
140MG-H8P-B70
140MG-H8P-B70
In Stock
From
$286.42
Allen-Bradley
7
600
140MG-H8P-C30
140MG-H8P-C30
In Stock
From
$163.09
Allen-Bradley
30
600
140MG-I8P-D15
140MG-I8P-D15
In Stock
From
$699.93
Allen-Bradley
150
600
140MG-M8P-D60
140MG-M8P-D60
In Stock
From
$6,149.59
Allen-Bradley
600
600
140U-I6C3-C15
140U-I6C3-C15
In Stock
From
$690.53
Allen-Bradley
15
600
140U-I6C3-C20-M
140U-I6C3-C20-M
In Stock
From
$104.34
Allen-Bradley
20
600
140U-I6C3-C30
140U-I6C3-C30
In Stock
From
$4,005.10
Allen-Bradley
30
600
140U-I6C3-C50-M
140U-I6C3-C50-M
In Stock
From
$77.40
Allen-Bradley
50
600
140U-I6C3-C80
140U-I6C3-C80
In Stock
From
$177.14
Allen-Bradley
80
600
145
145
In Stock
From
$1.29
American
45
120
1492-CB1G100
1492-CB1G100
In Stock
From
$19.02
Allen-Bradley
10
480
1492-CB1H150
1492-CB1H150
In Stock
From
$19.02
Allen-Bradley
15
480
1492-CB2F050
1492-CB2F050
In Stock
From
$35.05
Allen-Bradley
5
480
1492-CB2F100
1492-CB2F100
In Stock
From
$48.82
Allen-Bradley
10
480
1492-CB2H060
1492-CB2H060
In Stock
From
$42.24
Allen-Bradley
6
480
1492-CB2H100
1492-CB2H100
In Stock
From
$33.88
Allen-Bradley
10
480
1492-CB3G100
1492-CB3G100
In Stock
From
$67.45
Allen-Bradley
10
480
1492-GH002
1492-GH002
In Stock
From
$79.61
Allen-Bradley
0.2
240
1492-GH005
1492-GH005
In Stock
From
$49.62
Allen-Bradley
0.5
240
1492-GH008
1492-GH008
In Stock
From
$73.59
Allen-Bradley
0.8
240
1492-GH015
1492-GH015
In Stock
From
$79.77
Allen-Bradley
1.5
240
1492-GH020
1492-GH020
In Stock
From
$56.67
Allen-Bradley
2
240
1492-GH050
1492-GH050
In Stock
From
$103.42
Allen-Bradley
5
240
1492-GH100
1492-GH100
In Stock
From
$101.97
Allen-Bradley
10
240
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.