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
ED42S100AL	In Stock From $344^.47	Siemens	100	480
ED42S125A	In Stock From $283^.66	Siemens	125	480
ED42S125AL	In Stock From $316^.46	Siemens	125	480
ED43M015	In Stock From $1,718^.49	Siemens	15	480
ED43M040	In Stock From $503^.35	Siemens	40	480
ED43M090	In Stock From $1,256^.70	Siemens	90	480
ED43S100A	In Stock From $303^.10	Siemens	100	480
ED43S125A	In Stock From $282^.07	Siemens	125	480
ED62S100A	In Stock From $485^.87	Siemens	100	600
ED62S100AL	In Stock From $485^.87	Siemens	100	600
ED63A003L	In Stock From $186^.91	Siemens	3	600
ED63A005L	In Stock From $332^.39	Siemens	5	600
ED63A100L	In Stock From $556^.75	Siemens	100	600
ED63M030	In Stock From $333^.92	Siemens	30	600
ED63M040	In Stock From $764^.35	Siemens	40	600
ED63M045	In Stock From $787^.74	Siemens	45	600
ED63M060	In Stock From $311^.23	Siemens	60	600
ED63S125AL	In Stock From $791^.80	Siemens	125	600
EE1B025	In Stock From $66^.97	Siemens	25	120
EE1B040	In Stock From $25^.66	Siemens	40	120
EE1B050	In Stock From $106^.00	Siemens	50	120
EE1B060	In Stock From $58^.89	Siemens	60	120
EE1B070	In Stock From $27^.69	Siemens	70	120
EE1B070L	In Stock From $36^.86	ITE	70	120

1
...
764
765
766
...
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.