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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
HE43M070
HE43M070
In Stock
From
$180.49
ITE
70
480
HF3B020
HF3B020
In Stock
From
$62.88
Siemens
20
600
HGB1B070B
HGB1B070B
In Stock
From
$137.51
Siemens
70
347
HGB2B015B
HGB2B015B
In Stock
From
$295.40
Siemens
15
600
HGB2B025B
HGB2B025B
In Stock
From
$266.30
Siemens
25
600
HGB2B035B
HGB2B035B
In Stock
From
$237.57
Siemens
35
600
HGB2B040B
HGB2B040B
In Stock
From
$320.39
Siemens
40
600
HGB2B045B
HGB2B045B
In Stock
From
$194.06
Siemens
45
600
HGB2B090B
HGB2B090B
In Stock
From
$261.77
Siemens
90
600
HGB2B100B
HGB2B100B
In Stock
From
$339.47
Siemens
100
600
HGB2B110B
HGB2B110B
In Stock
From
$990.93
Siemens
110
600
HGB2B125B
HGB2B125B
In Stock
From
$624.66
Siemens
125
600
HGG3B015L
HGG3B015L
In Stock
From
$346.38
Siemens
15
600
HGG3B020L
HGG3B020L
In Stock
From
$346.49
Siemens
20
600
HGG3B040L
HGG3B040L
In Stock
From
$346.38
Siemens
40
600
HGG3B050L
HGG3B050L
In Stock
From
$346.38
Siemens
50
600
HGG3B060L
HGG3B060L
In Stock
From
$375.59
Siemens
60
600
HGG3B070L
HGG3B070L
In Stock
From
$816.07
Siemens
70
600
HGG3B080L
HGG3B080L
In Stock
From
$405.10
Siemens
80
600
HGG3B090L
HGG3B090L
In Stock
From
$395.87
Siemens
90
600
HGG3B100L
HGG3B100L
In Stock
From
$965.81
Siemens
100
600
HGG3B125L
HGG3B125L
In Stock
From
$624.14
Siemens
125
600
HKB3F120
HKB3F120
In Stock
From
$2,875.80
Siemens
1200
600
HQ2200BH
HQ2200BH
In Stock
From
$526.66
Siemens
200
240
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.