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
TEY345ST12ASAB
TEY345ST12ASAB
Limited Stock
From
Get Price
General Electric
45
480
TEY350ASAB
TEY350ASAB
Limited Stock
From
Get Price
General Electric
50
480
TEY350ST12AS1A
TEY350ST12AS1A
Limited Stock
From
Get Price
General Electric
50
480
TEY350ST12AS1B
TEY350ST12AS1B
Limited Stock
From
Get Price
General Electric
50
480
TEY350ST12ASAB
TEY350ST12ASAB
Limited Stock
From
Get Price
General Electric
50
480
TEY360ASAB
TEY360ASAB
Limited Stock
From
Get Price
General Electric
60
480
TEY360ST12AS1A
TEY360ST12AS1A
Limited Stock
From
Get Price
General Electric
60
480
TEY360ST12AS1B
TEY360ST12AS1B
Limited Stock
From
Get Price
General Electric
60
480
TEY360ST12ASAB
TEY360ST12ASAB
Limited Stock
From
Get Price
General Electric
60
480
TEY370ST12AS1A
TEY370ST12AS1A
Limited Stock
From
Get Price
General Electric
70
480
TEY370ST12AS1B
TEY370ST12AS1B
Limited Stock
From
Get Price
General Electric
70
480
TEY370ST12ASAB
TEY370ST12ASAB
Limited Stock
From
Get Price
General Electric
70
480
TEY380ASAB
TEY380ASAB
Limited Stock
From
Get Price
General Electric
80
480
TEY380ST12AS1A
TEY380ST12AS1A
Limited Stock
From
Get Price
General Electric
80
480
TEY380ST12AS1B
TEY380ST12AS1B
Limited Stock
From
Get Price
General Electric
80
480
TEY380ST12ASAB
TEY380ST12ASAB
Limited Stock
From
Get Price
General Electric
80
480
TEY390ASAB
TEY390ASAB
Limited Stock
From
Get Price
General Electric
90
480
TEY390ST12AS1A
TEY390ST12AS1A
Limited Stock
From
Get Price
General Electric
90
480
TEY390ST12AS1B
TEY390ST12AS1B
Limited Stock
From
Get Price
General Electric
90
480
TEY390ST12ASAB
TEY390ST12ASAB
Limited Stock
From
Get Price
General Electric
90
480
TEYF3100ST12
TEYF3100ST12
Limited Stock
From
Get Price
General Electric
100
480
TEYF315ST12
TEYF315ST12
Limited Stock
From
Get Price
General Electric
15
480
TEYF320ST12
TEYF320ST12
Limited Stock
From
Get Price
General Electric
20
480
TEYF325ST12
TEYF325ST12
Limited Stock
From
Get Price
General Electric
25
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.