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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
HED41B025
HED41B025
In Stock
From
$205.76
Siemens
25
277
HED41B025L
HED41B025L
In Stock
From
$221.15
Siemens
25
277
HED41B030L
HED41B030L
In Stock
From
$191.64
Siemens
30
277
HED41B035
HED41B035
In Stock
From
$137.02
Siemens
35
277
HED41B045
HED41B045
In Stock
From
$179.32
Siemens
45
277
HED41B045L
HED41B045L
In Stock
From
$210.12
Siemens
45
277
HED41B050L
HED41B050L
In Stock
From
$189.25
Siemens
50
277
HED41B060
HED41B060
In Stock
From
$96.94
Siemens
60
277
HED41B060L
HED41B060L
In Stock
From
$197.32
Siemens
60
277
HED41B070L
HED41B070L
In Stock
From
$647.66
Siemens
70
277
HED41B080L
HED41B080L
In Stock
From
$367.06
Siemens
80
277
HED41B090L
HED41B090L
In Stock
From
$366.84
Siemens
90
277
HED41B100
HED41B100
In Stock
From
$214.87
Siemens
100
277
HED41B100L
HED41B100L
In Stock
From
$111.26
Siemens
100
277
HED42B025L
HED42B025L
In Stock
From
$137.40
Siemens
25
480
HED42B035
HED42B035
In Stock
From
$2,042.20
Siemens
35
480
HED42B035L
HED42B035L
In Stock
From
$627.55
Siemens
35
480
HED42B045
HED42B045
In Stock
From
$253.70
Siemens
45
480
HED42B045L
HED42B045L
In Stock
From
$284.72
Siemens
45
480
HED42B060
HED42B060
In Stock
From
$236.72
Siemens
60
480
HED42B060L
HED42B060L
In Stock
From
$283.36
Siemens
60
480
HED42B070
HED42B070
In Stock
From
$1,481.05
Siemens
70
480
HED42B070L
HED42B070L
In Stock
From
$284.59
Siemens
70
480
HED42B080
HED42B080
In Stock
From
$262.34
Siemens
80
480
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.