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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
HE3B045L
HE3B045L
In Stock
From
Get Price
Siemens
45
480
HE3B050L
HE3B050L
In Stock
From
$391.94
Siemens
50
480
HE3B060L
HE3B060L
In Stock
From
$397.54
ITE
60
480
HE3B070
HE3B070
In Stock
From
$211.85
Siemens
70
480
HE3B070L
HE3B070L
In Stock
From
$194.21
Siemens
70
480
HE3B080L
HE3B080L
In Stock
From
$493.62
Siemens
80
480
HE3B090L
HE3B090L
In Stock
From
$329.15
Siemens
90
480
HE3B100L
HE3B100L
In Stock
From
$494.77
ITE
100
480
HE3B110
HE3B110
In Stock
From
$1,178.98
ITE
110
480
HE3B110L
HE3B110L
In Stock
From
$1,231.70
Siemens
110
480
HE3B125L
HE3B125L
In Stock
From
$302.46
Siemens
125
480
HE3B150L
HE3B150L
In Stock
From
$1,528.80
Siemens
150
480
HE3H050
HE3H050
In Stock
From
$68.05
Siemens
50
480
HE3M020
HE3M020
In Stock
From
$583.51
Siemens
20
480
HE3M030
HE3M030
In Stock
From
$270.00
Siemens
30
480
HE3M090
HE3M090
In Stock
From
$421.35
Siemens
90
480
HE42B070
HE42B070
In Stock
From
$156.11
ITE
70
480
HE42B090
HE42B090
In Stock
From
$11.11
ITE
90
480
HE42B100
HE42B100
Limited Stock
From
Get Price
ITE
100
480
HE63B020
HE63B020
In Stock
From
$132.10
Siemens
20
600
HE63B030
HE63B030
In Stock
From
$181.65
ITE
30
600
HE63B045
HE63B045
In Stock
From
$11.43
ITE
45
600
HE63B050
HE63B050
In Stock
From
$239.34
ITE
50
600
HE63B060
HE63B060
In Stock
From
$335.50
ITE
60
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.