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Updated Date: 30th, Jul 2024

Top 8 Molded Case Circuit Breaker Manufacturers (MCCB) in the USA

Over the past years, we have seen the rapidly evolving electrical infrastructure. In such a situation, molded case circuit breakers (MCCBs) play a crucial role in safeguarding electrical systems from overloads and short circuits. With an increasing demand for high-performance circuit protection, the market for MCCBs is robust and diverse.

Now the US is home to top MCCB manufacturers. This post will discuss each of them. 

What Are the Top MCCB Manufacturers in the USA?

Here are the top 8 Molded Case Circuit Breaker manufacturers that supply for the USA. Each is renowned for its commitment to quality and advanced circuit protection solutions. 

These industry leaders offer a range of products designed to meet diverse electrical needs. These circuit breaker brands also provide superior protection for various applications.

Eaton Corporation

Eaton Corporation is a leading name in the electrical industry. This brand is renowned for its high-quality molded case circuit breakers. As a prominent MCCB manufacturer, Eaton provides unparalleled safety across different industries. These may include alternative energy, commercial, industrial, mining, and military sectors.

Eaton’s circuit breakers are versatile and can be applied in a variety of settings, including:

  • Panelboards and switchboards
  • Motor control centers and control panels
  • Combination starters and individual enclosures
  • Bus duct plug-in units

Eaton’s MCCB portfolio covers a broad range of current ratings, from 10 amps to 3,000 amps. Thus, Eaton caters to different requirements and applications. This extensive selection allows users to choose the most suitable circuit breaker for their specific needs.

Headquarters: Ohio, USA

GE Industrial

General Electric‘s Molded Case Circuit Breakers (MCCBs) are featured in various lines and configurations. Each line is tailored to specific needs and applications. Here’s an overview of GE’s generous line of MCCBs:

  • Q-Line Circuit Breakers
  • E 150 Line
  • F 225 Line
  • J 600 Line
  • K 1200 Line
  • Tri Break Line
  • Mag-Break Line

GE’s MCCBs are suitable for various applications, including residential, commercial, and industrial settings. They offer features that ensure safe and reliable operation, such as common trip bars, high interruption capacities, and various protective relays and monitoring units.

Headquarters: Boston, Massachusetts, USA

OMEGA Engineering

OMEGA Engineering is one of the leading MCCB circuit breaker suppliers in the USA. Made with precision and durability, OMEGA’s MCCBs offer reliable protection in challenging environments.

OMEGA products have wide applications, providing robust circuit protection. Another reason why OMEGA’s MCCBs are bestselling is they can meet various industry standards. Take for example Omega Series G Molded Case Circuit Breakers. This circuit breaker is compliant with UL, CSA, CE, IEC, and KEMA, KEUR standards.

Headquarters: Norwalk, Connecticut, USA

Rockwell Automation

The next top MCCB manufacturer in the USA is Rockwell Automation. This company creates versatile devices that have wide industrial applications. Rockwell’s MCCBs are reliable in protecting electrical circuits from overload, short circuits, and ground fault conditions.

Another noteworthy quality of MCCBs from Rockwell is that they can be integrated with other components. These would include motor starters, overload relays, and contactors. The MCCBs are available in various frame sizes. Due to this feature, they can accommodate a wide range of current ratings and breaking capacities.

Headquarters: Milwaukee, Wisconsin, USA 

Powell Industries

Powell Industries specializes in providing customized MCCB solutions tailored to specific industry needs. Known for their precision engineering and reliability, Powell’s MCCBs are used in various demanding applications. Their products offer superior protection and are designed to meet the highest safety standards.

Headquarters: Houston, Texas, USA

Square D by Schneider Electric USA

Schneider Electric’s Moulded Case Circuit Breakers (MCCBs) are part of the PowerPact series, including models like B-Frame, H-Frame, J-Frame, and more. These innovative circuit breakers come with flexibility. They are also high-performing, offering thermal-magnetic and electronic trip units. That last feature leads to comprehensive protection against overloads and short circuits. 

Schneider Electric manufactures MCCBs that support a wide range of current ratings. But the company does not stop there. The MCCBs they introduce to the market feature advanced technologies like integrated earth leakage protection and communication capabilities.

Headquarters: Andover, Massachusetts, USA

Carling Technologies

Carling Technologies is a distinguished name in the field of circuit protection. The company has a diverse range of molded case circuit breakers that have seen numerous applications. Carling Technologies circuit breakers are equipped with sophisticated protection features to guard against overloads, short circuits, and other potential faults. 

Carling Technologies circuit breakers are commonly used in:

  • Industrial Settings: Industrial environments demand equipment and machinery with robust protection. Since Carling Technologies prioritizes the durability of its MCCBs, they can withstand harsh conditions and extended use.
  • Commercial Installations: Carling Technologies produces MCCBs well-suited for commercial buildings. Whether managing the complex electrical needs of a bustling office or ensuring the safety of a high-traffic retail environment, Carling Technologies’ MCCBs are engineered to handle substantial electrical loads
  • Residential Use: Carling Technologies MCCBs are also applicable in residential settings. Here, the circuit breaker manufacturer provides dependable protection for home electrical systems and appliances.

Headquarters: Connecticut, USA

E-T-A Circuit Breakers

E-T-A Circuit Breakers is a global leader in circuit protection solutions, offering a diverse range of molded case circuit breakers. Known for their advanced technology and reliable performance, E-T-A’s MCCBs are designed to meet the needs of various industries. Their circuit breakers are engineered for durability and efficiency, providing robust protection in a range of operational environments.

Headquarters: California, USA

Meet iALLWay – Another Emerging Contender

iALLWAY Electric stands out as a top player in the molded case circuit breaker (MCCB) industry. iALLWAY has a remarkable response time to its inquiring customers. By doing so, the team promptly addresses customer concerns.

iALLWAY Electric’s team of electrical experts brings extensive knowledge and innovative capabilities to the table. Their expertise spans traditional electrical product design and manufacturing. This deep understanding enables them to design and produce smarter, more efficient MCCBs.

Furthermore, iALLWAY Electric is committed to uncompromising quality and performance. Through rigorous quality testing, the company minimizes product failure rates. 

Turning the Spotlight to iALLM7 Series DC Molded Case Circuit Breaker

iALLWAY Electric has made a notable impact with its iALLM7 Series DC Molded Case Circuit Breaker. This product exemplifies cutting-edge design and engineering.

Key Features of the iALLM7 Series:

  • Maximum Rated Voltage: AC 1500V, accommodating high voltage DC electrical setups.
  • Current Capacity: Up to 800A, providing flexible solutions for various applications.
  • Breaking Capacity: Maximum of 20kA at 1500V DC, ensuring reliable short-circuit protection.
  • Compliance: Meets IEC standards, ensuring compatibility with international safety norms.
  • Design: Features a three-proof construction, resistant to damp air, salt fog, oil fog, and mold, which enhances its durability.
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