Date: March 9, 2007

Eaton Announces New F-Frame Circuit Breaker With Electronic Trip Unit

PITTSBURGH … Diversified industrial manufacturer Eaton Corporation announces the newest addition to the Cutler-Hammer Series C Molded Case Circuit Breaker line: the FDE Electronic Circuit Breaker. The FDE consists of a three-pole F-frame breaker with an electronic trip unit. Previously, the F-frame breaker offering was limited to thermal magnetic trip units.

The new electronics use the Digitrip 310+ technology and also feature:

Long, short, instantaneous and ground fault protection

Adjustable long time pickup, eliminating the need for a separate rating plug

Enhanced coordination

Local current and cause of trip display (optional)

The available short circuit current ratings at 480 Vac are: 35 kAIC (FDE), 65 kAIC (HFDE) and 100 kAIC (FDCE). All internal and external accessories for the current F-frame breaker are compatible with the FDE since the footprint is the same. These breakers are now available in Eaton’s panelboards and switchboards.

The FDE offers a reduction in total installed cost and size, since most electronic trip units are offered in larger frames. The long time pickup range is 15 to 225 amps, with available ground fault protection. The NEC requires ground fault protection for service entrance and feeder circuits in healthcare facilities. Installing ground fault protection beyond those circuits can prevent damage to transformers and motor insulation in any circuit. Besides protecting equipment, isolating ground faults quickly before they intensify also reduces hazardous arc flash energy.

Eaton’s electrical business is a global leader in electrical control, power distribution, uninterruptible power supply and industrial automation products and services. Eaton’s global electrical brands, including Cutler-Hammer®, Powerware®, Holec® and MEM®, provide customer-driven PowerChain ManagementTM solutions to serve the power system needs of the industrial, institutional, government, utility, commercial, residential, IT, mission critical and OEM markets worldwide.

Eaton Corporation is a diversified industrial manufacturer with 2006 sales of $12.4 billion. Eaton is a global leader in electrical systems and components for power quality, distribution and control; fluid power systems and services for industrial, mobile and aircraft equipment; intelligent truck drivetrain systems for safety and fuel economy; and automotive engine air management systems, powertrain solutions and specialty controls for performance, fuel economy and safety. Eaton has 60,000 employees and sells products to customers in more than 125 countries. For more information, visit

Contact: Amanda Mushrush
(412) 893-4043