Molded Case Circuit Breakers - MCCB

Reliable and safe circuit protection

Discover unparalleled safety and reliability worldwide with Eaton’s extensive range of molded case circuit breakers, designed for diverse industries. 

Eaton’s broad molded case circuit breaker (MCCB) portfolio allows you to empower your projects ensuring incomparable circuit projection in alternative energy, commercial, industrial, mining, and military ventures. 

From safeguarding conductors against overloads to defending against short circuits, these breakers redefine reliability. Installed seamlessly in panelboards, switchboards, motor control centers and more, our MCCBs offer tailored solutions for every need. Elevate your electrical systems with Eaton’s cutting-edge technology.

Features: 

• Reliable Performance: Designated to handle various voltage and frequency requirements, to address needs ranging from standard to highest performance, Eaton Molded Case Circuit Breakers assure uninterrupted power supply for your needs.
• High Interrupting Capacity: With superior interrupting capacity our circuit breakers safeguard your electrical systems against overloads and short circuits, ensuring safety and reliability. 
• Continuous Current Rating: Engineered to provide consistent performance under continuous load, ranging from 10 to 3000A, our circuit breakers are built to meet your specific current rating demands. 
• Adaptability to unusual operating conditions: Eaton molded case circuit breakers are built to thrive in diverse environments, tackling unusual operating conditions at ease, making them the ideal choice for any situation.
• Product Testing: Eaton performs various types of electrical tests depending on the product. This includes trip unit Power Up, Long Time Trip, Short Delay Trip and Ground Fault Trip. 
• Wide Range of Sizes: From compact to high capacity, our circuit breakers come in a variety of size, catering to both residential and industrial applications. No matter the scale of your project, we have the perfect fit for you. 

Choose Eaton molded case circuit breakers for unmatched quality, reliability, and performance. Power up your world with confidence. 

Our molded case circuit breaker portfolio

Eaton offers the most comprehensive MCCB portfolio.

Designed for electrical and machinery OEMs serving a wide range of industries and applications, these proven designs incorporate the latest in innovation and reliability, which has been our hallmark since the advent of the circuit breaker in the 1920s.

View our MCCB portfolio below.

Power Defense molded case circuit breaker

The Power Defense molded case circuit breaker is globally rated in a small footprint.  It offers communicating electronic trip units and the ability to generate the data to help you optimize your facilities' performance.

Amperage Rating: 15A - 2,500A

Poles: single, two, three, four (0% N, 60% N, 100% N)

Voltage Rating: 240 Vac, 415 Vac, 440 Vac, 480 Vac, 525 Vac, 600 Vac, 690 Vac, 125 Vdc, 250 Vdc, 600 Vdc

Series C molded case circuit breaker

The Series C circuit breaker was originally introduced in the 1980's and is widely utilized in Eaton's panelboards, switchboards, motor control centers, and busway applications. Choose from a premier selection of trip units including thermal magnetic, electronic, and magnetic only switches.

Amperage Rating: 10A - 2,500A 

Poles:  Single, two, three, four (0%N, 50%N, 100%N)

Voltage Rating:  240 Vac, 415 Vac, 440 Vac, 480 Vac, 525 Vac, 600 Vac, 690 Vac, 125 Vdc, 250 Vdc

Series G molded case circuit breaker

The Eaton Series G molded case circuit breaker delivers superior circuit breaker performance with high-speed “blow-open” action. This globally-rated platform offers users high interruption ratings in a compact footprint with the ease of in-field configuration.

Amperage Rating:  15A - 2,500A

Poles:  Single, two, three, four (0%N, 50%N, 100%N)

Voltage Rating:  240 Vac, 415 Vac, 440 Vac, 480 Vac, 525 Vac, 600 Vac, 690 Vac, 125 Vdc, 250 Vdc

PV Gard / Solar complete molded case circuit breaker

Eaton's DC and PVGard molded case circuit breakers are engineered to address the highest performance requirements while providing numerous accessories to fit different site specifications.  Today’s DC circuit breakers have expanded applications including solar photovoltaics, electric vehicle charging stations, battery storage and UPS systems, as well as commercial and industrial DC distribution.

Aperage Rating:  30A - 600A

Poles:  Three, four

Voltage Rating:  600 Vdc - 1,000 Vdc

E2 mining molded case circuit breaker

The Eaton E2 Mining molded case circuit breaker offers a higher quality experience and a safer work environment. Rugged design and tested dependability for harsh and hazardous environments make the E2 Mining MCCB the ideal breaker underground. The mining circuit breaker protects all sizes of trailing cable defined by MSHA.

Amperage Rating:  3A - 2,000A

Poles: Two, three 

Voltage Rating:  240 Vac, 480 Vac, 600 Vac, 1,000 Vac, 1,200 Vac, 250 Vdc

Engine Generator molded case circuit breaker

Users appreciate the custom design and compact footprint of the Eaton Engine Generator molded case circuit breaker. This circuit breaker is specifically created for generators as well as portable and temporary power applications where lower interrupting currents are common. 

Amperage Rating:  15A - 1,200A

Voltage Rating: 240 Vac, 480 Vac, 600Vac

Circuit Breaker Type:  FG, KG, LG, NG, VG

• Machine tool control panels and motor control centers
  Designed for these equipment requirements, including accessories.
• Panelboards
  As both main and branch circuit protection devices. Feeder Pillars in distribution systems to provide main and branch circuit protection up to 1200 amperes.
• Switchboard
  In distribution systems to provide main and branch circuit protection up to 2500 amperes.
• Busbar trunking tap-offs
  In busbar trunking tap-offs to provide circuit protection.
• Individual enclosures
  Completely assembled in enclosures to meet specific customer requirements.
• Additional applications
  Special versions of each Eaton frame are available to provide safe equipment control and protection in mining and other applications. Contact your Eaton agent or distributor for additional information.