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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
EZD250M4250ELN
EZD250M4250ELN
In Stock
From
$632.97
Schneider Electric
250
690
EZD250S3250N
EZD250S3250N
In Stock
From
$1,203.54
Schneider Electric
250
690
EZD400E3250K
EZD400E3250K
In Stock
From
$795.19
Schneider Electric
250
690
EZD400E3320K
EZD400E3320K
In Stock
From
$724.80
Schneider Electric
320
690
EZD400E3350K
EZD400E3350K
In Stock
From
$588.34
Schneider Electric
350
690
EZD400E3400K
EZD400E3400K
In Stock
From
$722.21
Schneider Electric
400
690
EZD400M3320K
EZD400M3320K
In Stock
From
$834.62
Schneider Electric
320
690
EZD400M3400K
EZD400M3400K
In Stock
From
$1,490.10
Schneider Electric
400
690
EZD630E3500MAK
EZD630E3500MAK
In Stock
From
$570.14
Schneider Electric
500
690
EZD630E4630ELK
EZD630E4630ELK
In Stock
From
$6,287.78
Schneider Electric
630
690
EZD630M3500K
EZD630M3500K
In Stock
From
$872.87
Schneider Electric
500
690
FCJ24100
FCJ24100
In Stock
From
$28.87
Square D
100
480
FDA240503
FDA240503
In Stock
From
$252.12
Schneider Electric
50
480
FDA240505
FDA240505
In Stock
From
$252.12
Schneider Electric
50
480
FDA240506
FDA240506
In Stock
From
$272.53
Square D
50
480
FDA240603
FDA240603
In Stock
From
$234.28
Square D
60
480
FDA240605
FDA240605
In Stock
From
$226.45
Schneider Electric
60
480
FDA240606
FDA240606
In Stock
From
$234.28
Square D
60
480
FDA240703
FDA240703
In Stock
From
$160.25
Square D
70
480
FDA240704
FDA240704
In Stock
From
$263.34
Schneider Electric
70
480
FDA240705
FDA240705
In Stock
From
$241.30
Schneider Electric
70
480
FDA240706
FDA240706
In Stock
From
$160.25
Square D
70
480
FDA240801
FDA240801
In Stock
From
$245.87
Schneider Electric
80
480
FDA240802
FDA240802
In Stock
From
$276.61
Schneider Electric
80
480
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

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.