Refine Results

In Stock

Applied Filters:

Molded Case Circuit Breaker

Subcategory

Molded Case Circuit Breaker

Manufacturers

All

Amperage

All

Voltage

All

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
JXD62B400	In Stock From $1,272^.74	Siemens	400	600
JXD63B200	In Stock From $1,989^.55	Siemens	200	600
JXD63B225	In Stock From $2,120^.06	Siemens	225	600
JXD63B225L	In Stock From $6,350^.71	Siemens	225	600
JXD63B250	In Stock From $1,887^.45	Siemens	250	600
JXD63B250H	In Stock From $2,030^.77	Siemens	250	600
JXD63B300H	In Stock From $1,276^.39	Siemens	300	600
JXD63B400L	In Stock From $6,595^.52	Siemens	350	600
JXD63F300	In Stock From $769^.99	Siemens	300	600
JXD63L400	In Stock From $1,558^.78	Siemens	400	600
JXD63S400A	In Stock From $1,325^.28	Siemens	400	600
KA2070	In Stock From $435^.78	Westinghouse	70	600
KA2125	In Stock From $359^.81	Westinghouse	125	600
KA2200	In Stock From $241^.82	Westinghouse	200	600
KA2200W	In Stock From $597^.08	Westinghouse	200	600
KA2225	In Stock From $464^.92	Westinghouse	225	600
KA2225F	In Stock From $304^.58	Westinghouse	225	600
KA26125AB	In Stock From $1,037^.88	Square D	125	600
KA26150AC	In Stock From $997^.91	Square D	150	600
KA26150BC	In Stock From $423^.97	Square D	150	600
KA26225	In Stock From $802^.54	Square D	225	600
KA26225AB	In Stock From $642^.08	Square D	225	600
KA26225AC	In Stock From $768^.56	Square D	225	600
KA3070	In Stock From $699^.36	Cutler Hammer	70	600

1
...
511
512
513
...
18,485

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.