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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
EH2B020
EH2B020
In Stock
From
$224.23
ITE
20
480
EH2B030
EH2B030
In Stock
From
$706.45
ITE
30
480
EH2B040
EH2B040
In Stock
From
Get Price
Siemens
40
480
EH2B050
EH2B050
In Stock
From
$274.70
ITE
50
480
EH3015
EH3015
In Stock
From
$68.76
Cutler Hammer
15
480
EH3040
EH3040
In Stock
From
Get Price
Cutler Hammer
40
480
EH3050
EH3050
In Stock
From
$232.82
Eaton
50
480
EH3070
EH3070
In Stock
From
$225.00
Cutler Hammer
70
480
EH3100
EH3100
In Stock
From
$596.18
Cutler Hammer
100
480
EH34015
EH34015
In Stock
From
$190.30
Square D
15
480
EH34020
EH34020
In Stock
From
$350.60
Square D
20
480
EH34030
EH34030
In Stock
From
$601.89
Square D
30
480
EH34035
EH34035
In Stock
From
$480.14
Square D
35
480
EH34060
EH34060
In Stock
From
$1,517.35
Square D
60
480
EH3B015
EH3B015
In Stock
From
$178.19
Siemens
15
480
EH3B020
EH3B020
In Stock
From
$486.59
Siemens
20
480
EH3B030
EH3B030
In Stock
From
$503.62
Siemens
30
480
EH3B035
EH3B035
In Stock
From
$224.27
Siemens
35
480
EH3B040
EH3B040
In Stock
From
$354.59
Siemens
40
480
EH3B050
EH3B050
In Stock
From
Get Price
Siemens
50
480
EH3B060
EH3B060
In Stock
From
Get Price
ITE
60
480
EH3B070
EH3B070
In Stock
From
$996.55
Siemens
70
480
EH3B090
EH3B090
In Stock
From
$1,347.69
ITE
90
480
EH3B100
EH3B100
In Stock
From
$762.83
Siemens
100
480
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.