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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
EH3A110L
EH3A110L
In Stock
From
$1,333.27
ITE
110
480
EH3A125
EH3A125
In Stock
From
$3,961.66
Siemens
125
480
EH3A125L
EH3A125L
In Stock
From
$1,151.12
ITE
125
480
EH3A150
EH3A150
In Stock
From
$1,063.44
Siemens
150
480
EH3A150L
EH3A150L
In Stock
From
$1,419.01
ITE
150
480
EH3B010
EH3B010
In Stock
From
$99.48
ITE
10
480
EH3B015L
EH3B015L
In Stock
From
$194.39
Siemens
15
480
EH3B02000S01
EH3B02000S01
Limited Stock
From
Get Price
ITE
20
480
EH3B020L
EH3B020L
In Stock
From
$160.76
Siemens
20
480
EH3B025L
EH3B025L
In Stock
From
$159.02
Siemens
25
480
EH3B030L
EH3B030L
In Stock
From
Get Price
Siemens
30
480
EH3B035L
EH3B035L
In Stock
From
$420.78
ITE
35
480
EH3B040L
EH3B040L
In Stock
From
$297.00
Siemens
40
480
EH3B050L
EH3B050L
In Stock
From
$285.53
Siemens
50
480
EH3B070L
EH3B070L
In Stock
From
$418.69
Siemens
70
480
EH3B080L
EH3B080L
In Stock
From
$156.48
Siemens
80
480
EH3B090L
EH3B090L
In Stock
From
$314.06
Siemens
90
480
EH3B100L
EH3B100L
In Stock
From
Get Price
Siemens
100
480
EH3B110
EH3B110
In Stock
From
$1,277.61
Siemens
110
480
EH3B110L
EH3B110L
In Stock
From
$1,192.09
Siemens
110
480
EH3M015
EH3M015
In Stock
From
$41.12
Siemens
15
480
EH3M030
EH3M030
In Stock
From
$723.09
Siemens
30
480
EH3S100
EH3S100
In Stock
From
$1,319.31
ITE
100
480
EH3S100L
EH3S100L
In Stock
From
Get Price
Siemens
100
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.