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
140U-J3D3-D20	Limited Stock From Get Price	Allen-Bradley	200	600
140U-J6H3-C50	In Stock From $1,568^.14	Allen-Bradley	50	600
140U-J6L3-D16	Limited Stock From Get Price	Allen-Bradley	160	600
140U-K0H3-D40	In Stock From $5,079^.00	Allen-Bradley	400	600
140U-K3D3-D30	In Stock From $1,525^.12	Allen-Bradley	300	600
140U-K3D3-D35	In Stock From $718^.19	Allen-Bradley	350	600
140U-K3D3-D40	In Stock From $3,278^.61	Allen-Bradley	400	600
140U-M6D3-D40	Limited Stock From Get Price	Allen-Bradley	400	600
140U-N6L3-E12	In Stock From $7,003^.92	Allen-Bradley	1200	600
1489-A3C070	In Stock From $94^.95	Allen-Bradley	7	277
1489-A3C100	Limited Stock From Get Price	Allen-Bradley	10	277
1489-A3C300R	In Stock From $206^.96	Allen-Bradley	30	277
1489-A3C350	In Stock From $212^.02	Allen-Bradley	35	277
1492-D1C005	In Stock From $91^.66	Allen-Bradley	0.5	500
1492-D1C016	In Stock From $131^.85	Allen-Bradley	1.6	500
1492-D1C040	In Stock From $90^.12	Allen-Bradley	4	500
1492-D1C060	In Stock From $106^.72	Allen-Bradley	6	500
1492-D1C080	In Stock From $155^.00	Allen-Bradley	8	500
1492-D1C130	In Stock From $93^.62	Allen-Bradley	13	500
1492-D1C160	In Stock From $82^.44	Allen-Bradley	16	500
1492-D1C200	In Stock From $81^.49	Allen-Bradley	20	500
1492-D1C250	In Stock From $111^.02	Allen-Bradley	25	500
1492-D1C500	In Stock From $111^.10	Allen-Bradley	50	500
1492-D1C630	In Stock From $112^.75	Allen-Bradley	63	500

1
...
710
711
712
...
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.