Refine Results

In Stock

Applied Filters:

Molded Case Circuit Breaker

American

Subcategory

Molded Case Circuit Breaker

Manufacturers (1)

American

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
NA340-FLAT-TOP	In Stock From $192^.56	American	40	240
NA345-FLAT-TOP	In Stock From $237^.90	American	45	240
NA350	In Stock From $208^.46	Federal Pacific	50	240
NA350-FLAT-TOP	In Stock From $241^.35	American	50	240
NA360-FLAT-TOP	In Stock From $167^.10	American	60	240
NA370	In Stock From $131^.04	American	70	240
NA370-FLAT-TOP	In Stock From $331^.80	American	70	240
NA380	In Stock From $305^.98	American	80	240
NA380-FLAT-TOP	In Stock From $457^.08	American	80	240
NA390	In Stock From $61^.25	Federal Pacific	90	240
NA390-FLAT-TOP	In Stock From $444^.42	Federal Pacific	90	240
NA3P100-FLAT-TOP	In Stock From $389^.99	American	100	240
NA3P15	In Stock From $169^.20	American	15	240
NA3P15-FLAT-TOP	In Stock From $174^.88	Federal Pacific	15	240
NA3P20	In Stock From $219^.86	Federal Pacific	20	240
NA3P20-FLAT-TOP	In Stock From $231^.58	American	20	240
NA3P30	In Stock From $195^.50	Federal Pacific	30	240
NA3P30-FLAT-TOP	In Stock From $191^.03	Federal Pacific	30	240
NA3P35	In Stock From $339^.38	Federal Pacific	35	240
NA3P35-FLAT-TOP	In Stock From $284^.88	Federal Pacific	35	240
NA3P40-FLAT-TOP	In Stock From $192^.56	American	40	240
NA3P45-FLAT-TOP	In Stock From $224^.39	American	45	240
NA3P50	In Stock From $253^.33	Federal Pacific	50	240
NA3P50-FLAT-TOP	In Stock From $266^.44	American	50	240

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.