Spend $1,000 Get a FREE Hoodie - Get Yours While Supplies Last  
  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
MGN60913
MGN60913
Limited Stock
From
Get Price
Merlin Gerin
63
415
NB100N-3P-80A
NB100N-3P-80A
Limited Stock
From
Get Price
Square D
80
690
NRJF36080CU64AE1
NRJF36080CU64AE1
Limited Stock
From
Get Price
Schneider Electric
800
600
NRKA36300CU73AE1
NRKA36300CU73AE1
Limited Stock
From
Get Price
Schneider Electric
3000
600
NRKF36120U44A
NRKF36120U44A
Limited Stock
From
Get Price
Square D
1200
600
NSX160S
NSX160S
Limited Stock
From
Get Price
Schneider Electric
160
690
PGL46120U33A
PGL46120U33A
Limited Stock
From
Get Price
Schneider Electric
1200
600
PGL46120U64AE1YP
PGL46120U64AE1YP
Limited Stock
From
Get Price
Schneider Electric
1200
600
PJP36080CU63AE1YP
PJP36080CU63AE1YP
Limited Stock
From
Get Price
Square D
800
600
PKF46120U64AE1BD
PKF46120U64AE1BD
Limited Stock
From
Get Price
Square D
1200
600
PKF46120U73AE1YP
PKF46120U73AE1YP
Limited Stock
From
Get Price
Schneider Electric
1200
600
PKP46080U74AE1BC
PKP46080U74AE1BC
Limited Stock
From
Get Price
Schneider Electric
800
600
PLA34100U64AE1YP
PLA34100U64AE1YP
Limited Stock
From
Get Price
Schneider Electric
1000
480
PLM34080U63AE1AA
PLM34080U63AE1AA
Limited Stock
From
Get Price
Square D
800
480
PLM34100U31AYP
PLM34100U31AYP
Limited Stock
From
Get Price
Schneider Electric
1000
480
PLP34120U31ABD
PLP34120U31ABD
Limited Stock
From
Get Price
Square D
1200
480
RJF46160CU31A
RJF46160CU31A
Limited Stock
From
Get Price
Schneider Electric
1600
600
236-05
236-05
Limited Stock
From
Get Price
Schneider Electric
-
-
362215YK
362215YK
Limited Stock
From
Get Price
Schneider Electric
-
-
4CB110/6
4CB110/6
Limited Stock
From
Get Price
Schneider Electric
-
-
60261F
60261F
Limited Stock
From
Get Price
Schneider Electric
-
-
A9F44263
A9F44263
Limited Stock
From
Get Price
Schneider Electric
-
-
A9F74332
A9F74332
Limited Stock
From
Get Price
Schneider Electric
-
-
A9F95106
A9F95106
Limited Stock
From
Get Price
Schneider Electric
-
-
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.