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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
HLL36100M73
HLL36100M73
In Stock
From
$1,088.79
Square D
100
600
JDA36250U43X
JDA36250U43X
In Stock
From
$2,220.96
Square D
250
600
JDL36200
JDL36200
In Stock
From
$1,099.41
Square D
200
600
JGA36250U31X
JGA36250U31X
In Stock
From
$2,819.03
Square D
250
600
JGA36250U33X
JGA36250U33X
In Stock
From
$3,019.23
Square D
250
600
JGA36250U53X
JGA36250U53X
In Stock
From
$1,081.35
Square D
250
600
JGL36250CU31X
JGL36250CU31X
In Stock
From
$2,406.72
Schneider Electric
250
600
JGL36250U31X
JGL36250U31X
In Stock
From
$2,518.05
Square D
250
600
JJA34250WU31X
JJA34250WU31X
In Stock
From
$5,024.40
Square D
250
480
JJA36200SA
JJA36200SA
In Stock
From
$2,960.35
Square D
200
600
JJA36200YP
JJA36200YP
In Stock
From
$1,383.42
Square D
200
600
JJA36250U31X
JJA36250U31X
In Stock
From
$1,916.55
Square D
250
600
JJA36250U33X
JJA36250U33X
In Stock
From
$2,492.70
Square D
250
600
JJA36250U54X
JJA36250U54X
In Stock
From
$6,130.91
Square D
250
600
JJL36150
JJL36150
In Stock
From
$1,435.48
Square D
150
600
JJL36250M75
JJL36250M75
In Stock
From
$2,343.27
Square D
250
600
JJL36250U43X
JJL36250U43X
In Stock
From
$3,060.00
Square D
250
600
JJL36250U44X
JJL36250U44X
In Stock
From
$4,345.69
Schneider Electric
250
600
JLA36200
JLA36200
In Stock
From
$2,440.84
Square D
200
600
JLA36225
JLA36225
In Stock
From
$2,431.65
Square D
225
600
JLA36250
JLA36250
In Stock
From
$2,734.63
Square D
250
600
JRA36175
JRA36175
In Stock
From
$8,866.39
Square D
175
600
LA26300BC
LA26300BC
In Stock
From
$2,303.80
Square D
300
600
LA26400AB
LA26400AB
In Stock
From
$2,665.19
Square D
400
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.