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
FS320070B
FS320070B
Limited Stock
From
Get Price
Thomas & Betts
70
240
FS320080B
FS320080B
Limited Stock
From
Get Price
Thomas & Betts
80
240
FS320090B
FS320090B
Limited Stock
From
Get Price
Thomas & Betts
90
240
FS320100AL
FS320100AL
Limited Stock
From
Get Price
Thomas & Betts
100
240
FS320100B
FS320100B
Limited Stock
From
Get Price
Thomas & Betts
100
240
FS320125AL
FS320125AL
Limited Stock
From
Get Price
Thomas & Betts
125
240
FS320150AL
FS320150AL
Limited Stock
From
Get Price
Thomas & Betts
150
240
FS340020B
FS340020B
Limited Stock
From
Get Price
Thomas & Betts
20
480
FS340025
FS340025
Limited Stock
From
Get Price
Cutler Hammer
25
480
FS340025B
FS340025B
Limited Stock
From
Get Price
Thomas & Betts
25
480
FS340030B
FS340030B
Limited Stock
From
Get Price
Thomas & Betts
30
480
FS340035
FS340035
Limited Stock
From
Get Price
Thomas & Betts
35
480
FS340035B
FS340035B
Limited Stock
From
Get Price
Thomas & Betts
35
480
FS340040B
FS340040B
Limited Stock
From
Get Price
Thomas & Betts
40
480
FS340045
FS340045
Limited Stock
From
Get Price
Thomas & Betts
45
480
FS340050B
FS340050B
Limited Stock
From
Get Price
Thomas & Betts
50
480
FS340060B
FS340060B
Limited Stock
From
Get Price
Thomas & Betts
60
480
FS340070
FS340070
Limited Stock
From
Get Price
Thomas & Betts
70
480
FS340070B
FS340070B
Limited Stock
From
Get Price
Thomas & Betts
70
480
FS340080B
FS340080B
Limited Stock
From
Get Price
Thomas & Betts
80
480
FS340090
FS340090
Limited Stock
From
Get Price
Thomas & Betts
90
480
FS340090B
FS340090B
Limited Stock
From
Get Price
Thomas & Betts
90
480
FS340100B
FS340100B
Limited Stock
From
Get Price
Thomas & Betts
100
480
FS340150
FS340150
Limited Stock
From
Get Price
Thomas & Betts
150
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.