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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
1DU25L
1DU25L
In Stock
From
$34.35
Altech Corp
-
1DU2L
1DU2L
In Stock
From
$22.42
Altech Corp
-
1DU50L
1DU50L
In Stock
From
$35.35
Altech Corp
-
1E1UM
1E1UM
In Stock
From
$23.23
Altech Corp
-
1G8UM
1G8UM
In Stock
From
$23.70
Altech Corp
-
2B13UR
2B13UR
In Stock
From
$32.32
Altech Corp
-
2C15UR
2C15UR
In Stock
From
$76.60
Altech Corp
-
2C16UR
2C16UR
In Stock
From
$77.83
Altech Corp
-
2E6UM
2E6UM
In Stock
From
$95.45
Altech Corp
-
2GU30
2GU30
In Stock
From
$40.79
Altech Corp
-
3C6UR
3C6UR
In Stock
From
$113.87
Altech Corp
-
3G60UM
3G60UM
Limited Stock
From
Get Price
Altech Corp
-
DC1CU13L
DC1CU13L
In Stock
From
$25.25
Altech Corp
-
DC1CU3L
DC1CU3L
In Stock
From
$31.31
Altech Corp
-
DC1DU20L
DC1DU20L
In Stock
From
$26.23
Altech Corp
-
DC1DU25L
DC1DU25L
In Stock
From
$31.31
Altech Corp
-
DC1DU40L
DC1DU40L
In Stock
From
$10.67
Altech Corp
-
MA2.5UM
MA2.5UM
In Stock
From
$110.25
Altech Corp
-
1CU20R
1CU20R
Limited Stock
From
Get Price
Altech Corp
20
2CU15R
2CU15R
Limited Stock
From
Get Price
Altech Corp
15
3CU30L
3CU30L
Limited Stock
From
Get Price
Altech Corp
30
2CU15L
2CU15L
Limited Stock
From
Get Price
Altech Corp
-
1C63UL
1C63UL
Limited Stock
From
Get Price
Altech Corp
-
1GU60
1GU60
Limited Stock
From
Get Price
Altech Corp
-
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.