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
EE3M015L
EE3M015L
Limited Stock
From
Get Price
ITE
15
240
EE3M020L
EE3M020L
Limited Stock
From
Get Price
ITE
20
240
EE3M025
EE3M025
Limited Stock
From
Get Price
ITE
25
240
EE3M025L
EE3M025L
Limited Stock
From
Get Price
ITE
25
240
EE3M030L
EE3M030L
Limited Stock
From
Get Price
ITE
30
240
EE3M035
EE3M035
Limited Stock
From
Get Price
Siemens
35
240
EE3M035L
EE3M035L
Limited Stock
From
Get Price
Siemens
35
240
EE3M040L
EE3M040L
Limited Stock
From
Get Price
Siemens
40
240
EE3M045
EE3M045
Limited Stock
From
Get Price
Siemens
45
240
EE3M045L
EE3M045L
Limited Stock
From
Get Price
ITE
45
240
EE3M050
EE3M050
Limited Stock
From
Get Price
ITE
50
240
EE3M050L
EE3M050L
Limited Stock
From
Get Price
ITE
50
240
EE3M060
EE3M060
Limited Stock
From
Get Price
Siemens
60
240
EE3M060L
EE3M060L
Limited Stock
From
Get Price
ITE
60
240
EE3M070
EE3M070
Limited Stock
From
Get Price
ITE
70
240
EE3M070L
EE3M070L
Limited Stock
From
Get Price
ITE
70
240
EE3M080
EE3M080
Limited Stock
From
Get Price
ITE
80
240
EE3M080L
EE3M080L
Limited Stock
From
Get Price
ITE
80
240
EE3M090
EE3M090
Limited Stock
From
Get Price
Siemens
90
240
EE3M090L
EE3M090L
Limited Stock
From
Get Price
ITE
90
240
EE3M100
EE3M100
Limited Stock
From
Get Price
Siemens
100
240
EE3M100L
EE3M100L
Limited Stock
From
Get Price
Siemens
100
240
EF3A005A01
EF3A005A01
Limited Stock
From
Get Price
Siemens
5
600
EM6B003MS2L
EM6B003MS2L
Limited Stock
From
Get Price
Siemens
3
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.