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
T3N090TW-4
T3N090TW-4
Limited Stock
From
Get Price
ABB
90
600
T3S070TW-4
T3S070TW-4
Limited Stock
From
Get Price
ABB
70
600
T3S090TW-4
T3S090TW-4
Limited Stock
From
Get Price
ABB
90
600
T3S150DW-4
T3S150DW-4
Limited Stock
From
Get Price
ABB
150
240
T4N030TW-2
T4N030TW-2
Limited Stock
From
Get Price
ABB
30
600
T6S600BW-4
T6S600BW-4
Limited Stock
From
Get Price
ABB
600
600
T6S600CW-4
T6S600CW-4
Limited Stock
From
Get Price
ABB
600
600
T6S600EW-4
T6S600EW-4
Limited Stock
From
Get Price
ABB
600
600
T6S800BW-4
T6S800BW-4
Limited Stock
From
Get Price
ABB
800
600
T6S800CW-4
T6S800CW-4
Limited Stock
From
Get Price
ABB
800
600
T6S800EW-4
T6S800EW-4
Limited Stock
From
Get Price
ABB
800
600
T7H1000MW
T7H1000MW
Limited Stock
From
Get Price
ABB
1000
600
T7H1200MW
T7H1200MW
Limited Stock
From
Get Price
ABB
1200
600
T7L1000MW
T7L1000MW
Limited Stock
From
Get Price
ABB
1000
600
T7L1200MW
T7L1200MW
Limited Stock
From
Get Price
ABB
1200
600
T7MH1000BW
T7MH1000BW
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000BW-4
T7MH1000BW-4
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000CW
T7MH1000CW
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000CW-4
T7MH1000CW-4
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000EW
T7MH1000EW
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000EW-4
T7MH1000EW-4
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000MW
T7MH1000MW
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000PW
T7MH1000PW
Limited Stock
From
Get Price
ABB
1000
600
T7MH1000RW
T7MH1000RW
Limited Stock
From
Get Price
ABB
1000
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.