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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
JGA36150
JGA36150
In Stock
From
$1,511.69
Schneider Electric
150
600
JLA36250U31X
JLA36250U31X
In Stock
From
$4,851.11
Square D
250
600
LA36250
LA36250
In Stock
From
$3,086.87
Schneider Electric
250
600
LC36500
LC36500
In Stock
From
$4,500.02
Square D
500
600
LC36600
LC36600
In Stock
From
$3,274.14
Square D
600
600
LH36125
LH36125
In Stock
From
$2,484.14
Square D
125
600
LH36150
LH36150
In Stock
From
$1,522.59
Square D
150
600
LH36225
LH36225
In Stock
From
$3,521.70
Square D
225
600
LH36250
LH36250
In Stock
From
$1,198.53
Square D
250
600
MJA36500
MJA36500
In Stock
From
$3,783.18
Schneider Electric
500
600
MJL36700
MJL36700
In Stock
From
$4,312.48
Square D
700
600
QO310
QO310
In Stock
From
$74.40
Square D
10
240
QO315
QO315
In Stock
From
$52.28
Square D
15
240
QO320
QO320
In Stock
From
$51.97
Square D
20
240
QO325
QO325
In Stock
From
$238.66
Square D
25
240
QO335
QO335
In Stock
From
$147.50
Square D
35
240
QO345
QO345
In Stock
From
$91.76
Square D
45
240
QO360
QO360
In Stock
From
$59.85
Square D
60
240
QO370
QO370
In Stock
From
$99.78
Square D
70
240
QO390
QO390
In Stock
From
$107.53
Square D
90
240
EDB34050SA
EDB34050SA
In Stock
From
$660.74
Schneider Electric
50
480
HDL26060
HDL26060
In Stock
From
$474.26
Schneider Electric
60
600
HDL26100
HDL26100
In Stock
From
$630.16
Schneider Electric
100
600
HDL36025
HDL36025
In Stock
From
$674.80
Square D
25
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.