1. Home / 
  2. All Categories / 
  3. Circuit Breaker / 
  4. Molded Case Circuit Breaker

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
HE43B050
HE43B050
In Stock
From
$69.99
ITE
50
480
HE43B060
HE43B060
In Stock
From
$266.93
Siemens
60
480
HE43B070
HE43B070
In Stock
From
$108.68
Siemens
70
480
HE43B080
HE43B080
In Stock
From
$255.10
ITE
80
480
HE43B090
HE43B090
In Stock
From
$274.99
Siemens
90
480
HE43M015
HE43M015
In Stock
From
$137.79
Gould
15
480
HE43M020
HE43M020
In Stock
From
$284.30
Gould
20
480
HE43M025
HE43M025
In Stock
From
$2.97
Gould
25
480
HE43M030
HE43M030
In Stock
From
$363.09
ITE
30
480
HE43M035
HE43M035
In Stock
From
$2.97
Gould
35
480
HE43M040
HE43M040
In Stock
From
$6.82
Siemens
40
480
HE43M045
HE43M045
In Stock
From
$262.03
Siemens
45
480
HE43M070
HE43M070
In Stock
From
$181.41
ITE
70
480
HE43M080
HE43M080
In Stock
From
$171.72
ITE
80
480
HE43M090
HE43M090
In Stock
From
$61.46
Siemens
90
480
HEG3B045L
HEG3B045L
In Stock
From
$664.12
Siemens
45
600
HF2B020
HF2B020
In Stock
From
$2.24
Siemens
20
600
HF2B030
HF2B030
In Stock
From
$161.88
ITE
30
600
HF2B040
HF2B040
In Stock
From
$2.24
ITE
40
600
HF2B050
HF2B050
In Stock
From
$128.63
ITE
50
600
HF3B015
HF3B015
In Stock
From
$335.60
Siemens
15
600
HF3B020
HF3B020
In Stock
From
$65.50
Siemens
20
600
HF3B030
HF3B030
In Stock
From
$234.86
ITE
30
600
HF3B040
HF3B040
In Stock
From
$416.90
ITE
40
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.