Eaton’s New Narrow Frame Power And Air Circuit Breaker Offers Reduced Size And Improved Safety

Date: June 23, 2009

PITTSBURGH ... Diversified industrial manufacturer Eaton Corporation today announced the availability of the new 4000 amp (A) narrow frame power and air circuit breaker, from the Magnum DS® product line. The 26-inch wide Magnum 4000A narrow breaker allows original equipment manufacturers (OEMs) to use smaller enclosures while providing enhanced safety with high-level performance to meet global application requirements. 

“Eaton’s most compact 4000A narrow breaker is designed to provide improved safety measures while maximizing performance, all in a size that meets global switchgear and switchboard application requirements,” said Zari Talebi, marketing manager, Eaton. “Importantly, it allows OEMs to employ easier to handle bus sizes for standard 4000A applications.”

With both a new compact size and weight, the Magnum 4000A narrow offers a spectrum of innovations and advantages. The new narrow frame is more than eight-inches smaller in width than the current Magnum 4000A frame, and can be applied in 30-inch structures rather than 44-inch structures; thereby reducing the width of the gear by 14 inches. It uses DigitripTM trip unit technology, featuring Zone Selective Interlocking™ and Arcflash Reduction Maintenance SystemTM technology. Further, there are internationally approved factory-installed and field-installable accessories with four auxiliary switches available. The 4000A narrow frame features communications with translators to common protocols, including: INCOMTM, Modbus® and PROFIBUS®.

The Magnum 4000A narrow breaker meets the application needs for Underwriters Laboratories® (UL) 1066 switchgear and switchboard applications and International Electrotechnical Commission (IEC) 60947-2 control and switchgear applications. It is both American National Standards Institute (ANSI) and UL approved.

Eaton’s electrical business is a global leader in power distribution, power quality, control and industrial automation products and services. Eaton’s global electrical product lines, including Cutler-Hammer®, Moeller®, Powerware®, Holec®, MEM®, Santak®, and MGE Office Protection Systems™, provide customer-driven PowerChain Management® solutions to serve the power system needs of the data center, industrial, institutional, government, utility, commercial, residential and OEM markets worldwide.

Eaton Corporation is a diversified power management company with 2008 sales of $15.4 billion. Eaton is a global technology leader in electrical components and systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment; aerospace fuel, hydraulics and pneumatic systems for commercial and military use; and truck and automotive drivetrain and powertrain systems for performance, fuel economy and safety. Eaton has approximately 70,000 employees and sells products to customers in more than 150 countries. For more information, visit .

Zari Talebi
(414) 449-6470