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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
LB115
LB115
In Stock
From
$7.61
Leviton
15
240
LB115-AF
LB115-AF
In Stock
From
$125.56
Leviton
15
240
LB120
LB120
In Stock
From
$7.80
Leviton
20
240
LB130
LB130
In Stock
From
$7.54
Leviton
20
240
LB115-DF
LB115-DF
In Stock
From
$144.62
Leviton
15
240
LB120-DF
LB120-DF
In Stock
From
$64.18
Leviton
20
240
LB120-GF
LB120-GF
In Stock
From
$99.50
Leviton
20
240
LB140
LB140
In Stock
From
$9.28
Leviton
20
240
LB240
LB240
In Stock
From
$11.02
Leviton
-
-
MS00R-10W
MS00R-10W
In Stock
From
$31.28
Leviton
-
120
LB115-GF
LB115-GF
In Stock
From
$115.06
Leviton
20
240
LB120-AF
LB120-AF
In Stock
From
$51.88
Leviton
20
240
LB250
LB250
In Stock
From
$17.70
Leviton
-
-
LB19
LB19
In Stock
From
$15.08
Leviton
-
-
LB130-GF
LB130-GF
In Stock
From
$74.77
Leviton
-
-
LB220-GF
LB220-GF
In Stock
From
$153.18
Leviton
-
-
LB225-GF
LB225-GF
In Stock
From
$147.69
Leviton
-
-
LB230-EP
LB230-EP
In Stock
From
$204.27
Leviton
-
-
LB250-GF
LB250-GF
In Stock
From
$143.17
Leviton
-
-
LM100
LM100
In Stock
From
$40.92
Leviton
-
-
LM150
LM150
In Stock
From
$67.43
Leviton
-
-
LM225
LM225
In Stock
From
$152.51
Leviton
-
-
LB120-AFT
LB120-AFT
In Stock
From
$34.08
Leviton
-
-
LB215
LB215
In Stock
From
$19.10
Leviton
-
-
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.