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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
JLL36250U43X
JLL36250U43X
In Stock
From
$3,537.72
Schneider Electric
250
600
JLP36175
JLP36175
In Stock
From
$1,879.93
Square D
175
600
JLP36200
JLP36200
In Stock
From
$5,669.97
Square D
200
600
JLP36225
JLP36225
In Stock
From
$1,510.04
Square D
225
600
KC34200
KC34200
In Stock
From
$1,612.15
Schneider Electric
200
480
KDL32100
KDL32100
In Stock
From
$429.58
Schneider Electric
100
240
KDL32150
KDL32150
In Stock
From
$458.38
Square D
150
240
KDL32175
KDL32175
In Stock
From
$509.17
Square D
175
240
KDL32200
KDL32200
In Stock
From
$752.67
Square D
200
240
KDL32225
KDL32225
In Stock
From
$301.38
Schneider Electric
225
240
LA36300MT
LA36300MT
In Stock
From
$1,490.03
Square D
300
600
LA364002353
LA364002353
In Stock
From
$2,166.95
Square D
400
600
LA36400MT
LA36400MT
In Stock
From
$1,016.51
Square D
400
600
LAL3640022M
LAL3640022M
In Stock
From
$642.95
Square D
400
600
LAL3640031M
LAL3640031M
In Stock
From
$1,120.38
Square D
400
600
LAL3640032M
LAL3640032M
In Stock
From
$1,155.41
Schneider Electric
400
600
LAL3640033M
LAL3640033M
In Stock
From
$4,305.58
Square D
400
600
LDA36400U44X
LDA36400U44X
In Stock
From
$2,082.76
Square D
400
600
LDA36600U43X
LDA36600U43X
In Stock
From
$6,492.30
Schneider Electric
600
600
LDA36600U44X
LDA36600U44X
In Stock
From
$2,660.36
Schneider Electric
600
600
LDL36400CU33X
LDL36400CU33X
In Stock
From
$6,193.61
Schneider Electric
400
600
LDL36400U31X
LDL36400U31X
In Stock
From
$2,117.46
Schneider Electric
400
600
LDL36400U43X
LDL36400U43X
In Stock
From
$1,599.67
Square D
400
600
LDP36250U33X
LDP36250U33X
In Stock
From
$1,944.00
Square D
250
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.