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
HLA36090	In Stock From $1,398^.92	Square D	90	600
HLA36100	In Stock From $1,151^.94	Square D	100	600
HLA36150U31X	Limited Stock From Get Price	Square D	150	600
HLA36150U33X	In Stock From $5,668^.75	Square D	150	600
HLD3300W	In Stock From $2,396^.12	Cutler Hammer	300	600
HLD3450W	In Stock From $4,767^.90	Westinghouse	450	600
HLD3600A06	In Stock From $6,983^.20	Eaton	600	600
HLD3600T57WPN	In Stock From $8,105^.40	Westinghouse	600	600
HLD3600V	In Stock From $13,956^.18	Eaton	600	600
HLD3600VW	In Stock From $3,474^.26	Eaton	600	600
HLD3600W	In Stock From $2,662^.67	Eaton	600	600
HLD3600X	In Stock From $2,691^.98	Eaton	600	600
HLD63F600	In Stock From $4,193^.20	Siemens	600	600
HLDB3350	In Stock From $2,827^.45	Westinghouse	350	600
HLDB3400	In Stock From $2,379^.24	Westinghouse	400	600
HLDB3450	In Stock From $4,767^.90	Westinghouse	450	600
HLDB3600W	In Stock From $4,288^.86	Cutler Hammer	600	600
HLL36080	In Stock From $1,270^.64	Schneider Electric	80	600
HLL36125	In Stock From $2,224^.85	Square D	125	600
HLXD63B450	In Stock From $2,271^.24	Siemens	450	600
HLXD63B500L	In Stock From $950^.95	Siemens	500	600
HLXD63B600L	In Stock From $1,560^.26	Siemens	600	600
HLXD63S600AL	In Stock From $4,642^.32	Siemens	600	600
HMCP003A0C-A02	In Stock From $408^.67	Westinghouse	3	600

1
...
163
164
165
...
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.