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Molded Case Circuit Breaker

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Molded Case Circuit Breaker

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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.

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Part Number	PRICE	Manufacturer	Amperage	Voltage
MD3800	In Stock From $1,949^.80	Eaton	800	600
MDL3400W	In Stock From $10,299^.82	Westinghouse	400	600
MDL3600W	In Stock From $3,277^.10	Westinghouse	600	600
MDL3700W	In Stock From $2,037^.97	Eaton	700	600
MDL3800F	In Stock From $5,027^.30	Eaton	800	600
MDLB3800WK	In Stock From $5,627^.21	Eaton	800	600
MGA266002	In Stock From $2,215^.21	Square D	600	600
MGA36350	In Stock From $2,137^.85	Square D	350	600
MH36600	In Stock From $3,450^.00	Square D	600	600
MJA263002	In Stock From $8,889^.86	Schneider Electric	300	600
MJA36300YP	In Stock From $3,277^.94	Square D	300	600
MJA36400YP	In Stock From $4,643^.15	Schneider Electric	400	600
MJA36500YP	In Stock From $3,648^.96	Square D	500	600
MJA36600JK	In Stock From $3,180^.60	Schneider Electric	600	600
MJA36600YP	In Stock From $5,542^.27	Square D	600	600
MJA36800YP	In Stock From $8,215^.97	Schneider Electric	800	600
MP115GF	In Stock From $21^.71	Murray Corporation	15	120
MP120GF	In Stock From $49^.98	Siemens	20	120
MP130	In Stock From $64^.04	Siemens	30	120
MP130GF	In Stock From $49^.36	Murray Corporation	30	120
MP1515	In Stock From $12^.73	Murray	15	240
MP2125	In Stock From $45^.79	Siemens	125	240
MP215GF	In Stock From $53^.29	Murray Corporation	15	240
MP315	In Stock From $27^.43	Siemens	15	240

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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.