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Eaton Medium Voltage Automatic Transfer Switch Enhances Reliability in Industrial and Commercial Applications; Vacuum Circuit Breaker-Based Transfer Switch Meets UL 1008A Requirements, Provides Reliable Power Switching and Reduced Maintenance Time
[November 21, 2013]

Eaton Medium Voltage Automatic Transfer Switch Enhances Reliability in Industrial and Commercial Applications; Vacuum Circuit Breaker-Based Transfer Switch Meets UL 1008A Requirements, Provides Reliable Power Switching and Reduced Maintenance Time


(ENP Newswire Via Acquire Media NewsEdge) ENP Newswire - 21 November 2013 Release date- 20112013 - PITTSBURGH ... Power management company Eaton today announced its circuit breaker-based medium voltage automatic transfer switch (MV-ATS) has been listed under Underwriters Laboratories (UL) 1008A.



In order to meet this standard, the automatic transfer switch design must demonstrate compliance with certain requirements for safe, reliable transfer of power between two designated sources in a wide range of emergency power system applications including health care, commercial, industrial, utility and data center facilities.

'Highly reliable automatic transfer switches are the backbone of any well-designed emergency or standby power system,' said Javvad Qasimi, product manager at Eaton. 'Meeting these industry standards demonstrates to our customers that our transfer switch can help reduce the risk of unplanned downtime in wide range of critical environments.' The switch is designed to provide reliable automatic transfer to an alternate power source in the event of a failure, and return the load to the normal source when power is restored. It can also be used to transfer loads when peak shaving is desired or unreliable conditions are sensed.


High-visibility lighting on the MV-ATS enclosure indicates the use of normal or emergency power sources, and signifies available sources. When operating the transfer switch with an automatic transfer controller (ATC), the unit will indicate real-time power status by continuously monitoring incoming distribution lines. The ATC also allows full system configuration for simplified and automated performance.

The breaker-based configuration is easily applied to service entrance applications by adding an overcurrent trip to the switch. By installing at the point of service entrance, the units simplify installation and reduce the physical footprint of electrical distribution equipment by eliminating the need for separate upstream fault protection and respective power interconnections.

The breaker-based design also features compartmentalized drawout circuit breaker switches to simplify maintenance and equipment changes while further minimizing the total footprint of distribution equipment. Additionally, the vacuum design of the switch's circuit breakers allows for the use of various relay schemes, including phase and ground overcurrent, under and overvoltage, under and over frequency, directional overcurrent and directional power for protection and coordination as desired for a given application.

Further, the vacuum design of the MV-ATS units provides a viable alterative to switches that utilize SF6 gas for insulation and overcurrent protection. Incorporating epoxy insulation, Eaton MV-ATS switches protect against harsh environmental conditions, reduce heat and help eliminate the maintenance and environmental issues associated with SF6 equipment.

Eaton's medium voltage circuit breaker transfer switch assemblies are seismically tested or qualified to exceed the requirements based upon International Building Code (IBC) and California Building Code (CBC) parameters. The metal-clad assembly and all components are also designed, manufactured and tested in accordance with the latest applicable Canadian Standards Association (CSA), UL, American National Standards Institute (ANSI), National Electrical Manufacturers Association (NEMA), and Institute of Electrical and Electronics Engineers (IEEE) standards. To learn more about Eaton's medium voltage switchgear offerings, visit www.eaton.com/mva.

Eaton's electrical business is a global leader with expertise in power distribution and circuit protection; backup power protection; control and automation; lighting and security; structural solutions and wiring devices; solutions for harsh and hazardous environments; and engineering services. Eaton is positioned through its global solutions to answer today's most critical electrical power management challenges.

Eaton is a power management company providing energy-efficient solutions that help our customers effectively manage electrical, hydraulic and mechanical power. A global technology leader, Eaton acquired Cooper Industries plc in November 2012. The 2012 revenue of the combined companies was $21.8 billion on a pro forma basis. Eaton has approximately 102,000 employees and sells products to customers in more than 175 countries. For more information, visit www.eaton.com.

Mark Horner (412) 893-3590 [Editorial queries for this story should be sent to [email protected]] ((Comments on this story may be sent to [email protected])) (c) 2013 Electronic News Publishing -

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