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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.
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Part Number
PRICE
Manufacturer
Amperage
Voltage
GB2CD07
GB2CD07
In Stock
From
$54.79
Schneider Electric
2
277
GB2CD09
GB2CD09
In Stock
From
$78.27
Schneider Electric
4
277
GB2CD12
GB2CD12
Limited Stock
From
Get Price
Schneider Electric
6
277
GB2CD16
GB2CD16
In Stock
From
$68.20
Schneider Electric
10
277
GB2CD20
GB2CD20
In Stock
From
$39.25
Schneider Electric
12
277
GB2DB06
GB2DB06
Limited Stock
From
Get Price
Schneider Electric
1
277
GB2DB07
GB2DB07
In Stock
From
$56.36
Schneider Electric
2
277
GB2DB08
GB2DB08
Limited Stock
From
Get Price
Schneider Electric
3
277
GB2DB09
GB2DB09
Limited Stock
From
Get Price
Schneider Electric
4
277
GB2DB12
GB2DB12
Limited Stock
From
Get Price
Schneider Electric
6
277
HRL36100M73
HRL36100M73
In Stock
From
$835.11
Schneider Electric
100
600
HRL36150M74
HRL36150M74
In Stock
From
$1,323.90
Square D
150
600
JRL36250M75
JRL36250M75
In Stock
From
$997.97
Square D
100
600
KA36000MT1021
KA36000MT1021
In Stock
From
$912.34
Square D
250
600
KIB36150
KIB36150
In Stock
From
$2,417.23
Square D
150
600
LAF3640022M
LAF3640022M
In Stock
From
$144.91
Schneider Electric
400
600
LV428100
LV428100
In Stock
From
$279.10
Schneider Electric
80
690
LV429052
LV429052
Limited Stock
From
Get Price
Schneider Electric
-
-
LV429053
LV429053
In Stock
From
$79.80
Schneider Electric
-
-
LV429055
LV429055
Limited Stock
From
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Schneider Electric
-
-
LV429340
LV429340
In Stock
From
$395.15
Schneider Electric
-
-
LV429624
LV429624
In Stock
From
$398.93
Schneider Electric
100
690
LV429632
LV429632
In Stock
From
$266.20
Schneider Electric
100
690
LV429640
LV429640
Limited Stock
From
Get Price
Schneider Electric
100
690
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.