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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
1489-A1C030
1489-A1C030
In Stock
From
$96.97
Allen-Bradley
3
277
1489-A1C040
1489-A1C040
In Stock
From
$44.17
Allen-Bradley
4
277
1489-A1C060
1489-A1C060
In Stock
From
$184.17
Allen-Bradley
6
277
1489-A1C070
1489-A1C070
In Stock
From
$82.55
Allen-Bradley
7
277
1489-A1C100
1489-A1C100
In Stock
From
$37.43
Allen-Bradley
10
277
1489-A1C150
1489-A1C150
In Stock
From
$22.80
Allen-Bradley
15
277
1489-A1C200
1489-A1C200
In Stock
From
$134.87
Allen-Bradley
20
277
1489-A1D015
1489-A1D015
In Stock
From
$22.17
Allen-Bradley
1.5
277
1489-A1D030
1489-A1D030
In Stock
From
$75.55
Allen-Bradley
3
277
1489-A1D100
1489-A1D100
In Stock
From
$106.10
Allen-Bradley
10
277
1489-A2C030
1489-A2C030
In Stock
From
$182.05
Allen-Bradley
3
277
1489-A2C040
1489-A2C040
In Stock
From
$83.81
Allen-Bradley
4
277
1489-A2C050
1489-A2C050
In Stock
From
$69.24
Allen-Bradley
5
277
1489-A2C100
1489-A2C100
In Stock
From
$28.56
Allen-Bradley
10
277
1489-A2C130
1489-A2C130
In Stock
From
$65.17
Allen-Bradley
13
277
1489-A2C200
1489-A2C200
In Stock
From
$73.05
Allen-Bradley
20
277
1489-A2C250
1489-A2C250
In Stock
From
$155.06
Allen-Bradley
25
277
1489-A2D030
1489-A2D030
In Stock
From
$163.24
Allen-Bradley
3
277
1489-A2D050
1489-A2D050
In Stock
From
$102.34
Allen-Bradley
5
277
1489-A3D005
1489-A3D005
In Stock
From
$242.67
Allen-Bradley
0.5
277
1489-A3D010
1489-A3D010
In Stock
From
$77.01
Allen-Bradley
1
277
1489-A3D080
1489-A3D080
In Stock
From
$105.27
Allen-Bradley
8
277
1489-A3D200
1489-A3D200
In Stock
From
$71.19
Allen-Bradley
20
277
1489-D1C040
1489-D1C040
Limited Stock
From
Get Price
Allen-Bradley
4
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.