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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
KD2400F
KD2400F
In Stock
From
$858.64
Cutler Hammer
400
600
KT3350T
KT3350T
In Stock
From
$331.10
Eaton
-
600
KW3400F
KW3400F
In Stock
From
$2,270.12
Eaton
400
690
LAL26300
LAL26300
In Stock
From
$1,171.25
Square D
300
600
LAL26400MB
LAL26400MB
In Stock
From
$1,405.20
Square D
400
600
LAL36125
LAL36125
In Stock
From
$2,178.29
Square D
125
600
LAL36175
LAL36175
In Stock
From
$1,371.49
Square D
175
600
LAL36200MB
LAL36200MB
In Stock
From
$3,913.32
Square D
200
600
LAL36225
LAL36225
In Stock
From
$1,322.83
Square D
225
600
LAL36250
LAL36250
In Stock
From
$2,207.32
Square D
250
600
LAL36300
LAL36300
In Stock
From
$2,515.50
Square D
300
600
LAL36350
LAL36350
In Stock
From
$2,366.69
Square D
350
600
LAL36400
LAL36400
In Stock
From
$1,499.63
Square D
400
600
LAL364001021
LAL364001021
In Stock
From
$1,700.49
Square D
400
600
LAL3640031M
LAL3640031M
In Stock
From
$1,364.22
Square D
400
600
LAL3640032M
LAL3640032M
In Stock
From
$1,269.60
Schneider Electric
400
600
LAL3640033M
LAL3640033M
In Stock
From
$4,565.80
Square D
400
600
LAL3640035M
LAL3640035M
In Stock
From
$1,932.76
Schneider Electric
400
600
LAL3640036M
LAL3640036M
In Stock
From
$2,180.05
Square D
400
600
LAL364008041
LAL364008041
In Stock
From
$1,483.99
Square D
400
600
LAL36400MB
LAL36400MB
In Stock
From
$2,515.50
Square D
400
600
LAP26300MT
LAP26300MT
In Stock
From
$455.96
Square D
300
600
LAP26400MB
LAP26400MB
In Stock
From
$1,453.23
Square D
400
600
LAP36225MB
LAP36225MB
In Stock
From
$1,453.66
Square D
225
600
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.