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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
1492-CB2F500
1492-CB2F500
In Stock
From
$21.52
Allen-Bradley
50
480
1492-CB2G250
1492-CB2G250
In Stock
From
$35.40
Allen-Bradley
25
480
1492-CB2H010
1492-CB2H010
In Stock
From
$34.30
Allen-Bradley
1
480
1492-CB2H030
1492-CB2H030
In Stock
From
$73.69
Allen-Bradley
3
480
1492-CB2H060
1492-CB2H060
In Stock
From
$44.35
Allen-Bradley
6
480
1492-CB2H070
1492-CB2H070
In Stock
From
$32.07
Allen-Bradley
7
480
1492-CB2H150
1492-CB2H150
In Stock
From
$115.95
Allen-Bradley
15
480
1492-CB2H300
1492-CB2H300
In Stock
From
$168.45
Allen-Bradley
30
480
1492-CB3G010
1492-CB3G010
In Stock
From
$64.14
Allen-Bradley
1
480
1492-CB3G160
1492-CB3G160
In Stock
From
$243.22
Allen-Bradley
16
480
1492-CB3G300
1492-CB3G300
In Stock
From
$180.54
Allen-Bradley
30
480
1492-CB3H050
1492-CB3H050
In Stock
From
$16.11
Allen-Bradley
5
480
1492-CB3H070
1492-CB3H070
In Stock
From
$50.87
Allen-Bradley
7
480
1492-CB3H250
1492-CB3H250
In Stock
From
$315.80
Allen-Bradley
25
480
1492-CB3H400
1492-CB3H400
In Stock
From
$100.80
Allen-Bradley
40
480
1492-CB3H500
1492-CB3H500
In Stock
From
$27.44
Allen-Bradley
50
300
1492-D2C020
1492-D2C020
In Stock
From
$238.36
Allen-Bradley
2
500
1492-D2C200
1492-D2C200
In Stock
From
$260.84
Allen-Bradley
20
500
140M-D8E-C20-KN
140M-D8E-C20-KN
In Stock
From
$330.27
Allen-Bradley
20
-
140MG-H8P-C70
140MG-H8P-C70
In Stock
From
$2,020.71
Allen-Bradley
70
600
140MG-H8P-C80
140MG-H8P-C80
In Stock
From
$1,592.14
Allen-Bradley
80
600
140U-16C3-C40M
140U-16C3-C40M
In Stock
From
$213.99
Allen-Bradley
40
600
140U-16C3-C50M
140U-16C3-C50M
In Stock
From
$313.17
Allen-Bradley
-
600
1489-A1C050
1489-A1C050
In Stock
From
Get Price
Allen-Bradley
5
277
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.