Circuit Protection

Eaton's Electrical Business . . .
A Global Provider of Electrical Power Distribution Solutions

Technology Advancements and Innovative Features Our Customers Asked For in an Air Circuit Breaker

For nearly 70 years Eaton's Electrical Business has designed, engineered, and manufactured low voltage circuit breakers and trip units. Our unique product developments have continually set the standard for quality, reliability, and extended operating life.

We're an industry leader in air circuit breaker innovations such as the first solid-state trip unit, the first micro-processor-based trip unit, zone selective interlocking, and the DE-ION® arc extinguisher that provides superior arc quenching. We also innovated the Series C® Molded Case Circuit Breaker family that meets all major electrical world standards.

As a result of our extensive experience and worldwide installed base, we've learned that air circuit breaker requirements constantly change. System designers continually demand increased performance, necessitating innovative solutions that provide higher ratings in less space, enhanced safety, and allow for easier maintenance . . . plus the increasingly important capabilities of communications and power quality monitoring and measurement.

Anticipating future electrical distribution system design requirements and industry trends worldwide, Eaton's Electrical Business engineers and scientists combined their extensive air and molded case circuit breaker expertise with input from industry-leading customers. The result is the next generation of air circuit breakers . . . the revolutionary Magnum.^TM

Highest Ratings, Greater Strength, and Expanded Capabilities . . . in Less Space

We designed the Magnum Air Circuit with a rigid frame housing, making it structurally stronger while providing greater interrupting and withstand ratings in less space than any other air circuit breaker. The innovative arc running system enables Magnum to control the arc direction while also providing for higher interrupting capacity in a smaller space. This system provides for longer contact life and increased interrupt ratings.

Increased ratings in less space provide opportunities to design more rugged electrical distribution systems that can handle larger available fault currents, and provide for better coordination with downstream devices.

We also included capabilities for our customers to use Eaton's Electrical Business industry leading communications and power quality measurement technologies. »

• Highest Interruption and Withstand Ratings. Magnum provides the industry highest interrupting ratings available in a physically smaller size.
  
  
• Through-the-Door Design. All controls, indicators, and the trip unit are visible and can be safely accessed without opening the compartment door.
  
  
• Common Height and Depth. Each Magnum breaker frame size has the identical height and depth, a feature unique in the industry.
  
  
• A New Family of Trip Units. A full range of Digitrip® Electronic and Programmable Trip Units has been developed to provide customers a choice of expanded protection, information, power quality measurement, and communication capabilities to meet specific requirements.