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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
HE3B030
HE3B030
In Stock
From
$375.21
Siemens
30
480
HE3B035
HE3B035
In Stock
From
$102.30
ITE
35
480
HE3B040
HE3B040
In Stock
From
$106.97
Siemens
40
480
HE3B050
HE3B050
In Stock
From
$788.80
ITE
50
480
HE3B060
HE3B060
In Stock
From
$314.67
Siemens
60
480
HE3B080
HE3B080
In Stock
From
$1,903.38
Siemens
80
480
HE3B100
HE3B100
In Stock
From
$1,689.67
ITE
100
480
HE3H050
HE3H050
In Stock
From
$68.05
Siemens
50
480
HE3L050
HE3L050
In Stock
From
$600.94
Siemens
50
480
HE3M015
HE3M015
In Stock
From
$38.74
Siemens
15
480
HE3M100
HE3M100
In Stock
From
$494.95
Siemens
100
480
HE63B015
HE63B015
In Stock
From
$213.64
Siemens
15
600
HE63B030
HE63B030
In Stock
From
$181.65
ITE
30
600
HE63B040
HE63B040
In Stock
From
$261.03
ITE
40
600
HE63B070
HE63B070
In Stock
From
$146.14
Siemens
70
600
HEB1B015B
HEB1B015B
In Stock
From
$131.39
Siemens
15
277
HEB1B020
HEB1B020
In Stock
From
$23.83
Siemens
20
277
HEB1B020B
HEB1B020B
In Stock
From
$546.46
Siemens
20
277
HEB1B030B
HEB1B030B
In Stock
From
$158.89
Siemens
30
277
HEB1B060B
HEB1B060B
In Stock
From
$703.00
Siemens
60
277
HEB1B100B
HEB1B100B
In Stock
From
$612.50
Siemens
100
277
HEB2B015B
HEB2B015B
In Stock
From
$300.96
Siemens
15
600
HEB2B020
HEB2B020
In Stock
From
$123.42
Siemens
20
600
HEB2B020B
HEB2B020B
In Stock
From
$318.07
Siemens
20
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.