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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
HGB3B020B
HGB3B020B
In Stock
From
$382.08
Siemens
20
600
HGB3B025B
HGB3B025B
In Stock
From
$428.10
Siemens
25
600
HGB3B035B
HGB3B035B
In Stock
From
$236.64
Siemens
35
600
HGB3B040B
HGB3B040B
In Stock
From
$433.86
Siemens
40
600
HGB3B045B
HGB3B045B
In Stock
From
$346.22
Siemens
45
600
HGB3B050B
HGB3B050B
In Stock
From
$166.83
Siemens
50
600
HGB3B070B
HGB3B070B
In Stock
From
$279.84
Siemens
70
600
HGB3B080B
HGB3B080B
In Stock
From
$457.38
Siemens
80
600
HGB3B090B
HGB3B090B
In Stock
From
$444.35
Siemens
90
600
HGB3B100B
HGB3B100B
In Stock
From
$256.50
Siemens
100
600
HGB3B110B
HGB3B110B
In Stock
From
$435.19
Siemens
110
600
HGB3B125B
HGB3B125B
In Stock
From
$634.69
Siemens
125
600
HGF26080
HGF26080
In Stock
From
$429.30
Square D
80
600
HGF36020
HGF36020
In Stock
From
$674.44
Square D
20
600
HGF36060
HGF36060
In Stock
From
$318.58
Square D
60
600
HGF36100
HGF36100
In Stock
From
$1,232.08
Square D
100
600
HGF36150
HGF36150
In Stock
From
$1,559.04
Schneider Electric
150
600
HGHB1020
HGHB1020
In Stock
From
$72.14
Eaton
20
277
HGHC1015
HGHC1015
In Stock
From
$157.56
Eaton
15
277
HGL36000S15
HGL36000S15
In Stock
From
$983.58
Schneider Electric
150
600
HGL36025
HGL36025
In Stock
From
$447.32
Schneider Electric
25
600
HGL36150U44X
HGL36150U44X
In Stock
From
$576.02
Schneider Electric
150
600
HGM36100
HGM36100
In Stock
From
$1,010.56
Square D
100
600
HGP36080
HGP36080
In Stock
From
$295.76
Square D
80
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.