1045 Hickory Street Pewaukee, WI 53072 Phone: (262) 691-8271 Fax: (262) 691-9330 www.cooperpower.com News Release Contact: Jerome Yakel Cooper Power Systems Office: 262-691-8271 E-mail: jerome.yakel@cooperindustries.com Cooper Power Systems to Offer Wireless Smart Grid Sensor Devices Verizon Network Certified products leverage both companies’ technologies to help improve electric grid efficiency Waukesha, WI, February 9, 2011 – Cooper Power Systems, a division of Cooper Industries, Ltd. (NYSE: CBE) announced today that two of its smart grid sensor devices are Verizon Network Certified and available for sale to electric utilities. Using these products, utilities can easily receive the system performance data necessary to help efficiently operate their electrical grids—thereby, reducing the need for on-site inspections while also identifying and solving problems that could cause outages or increase system energy losses. ―Cooper Power Systems continues to invest in the Smart Grid with advanced energy services software and intelligent device solutions — such as our smart sensor technology, that help to cost-effectively communicate a utility’s system performance information from the grid,‖ stated Tom Pitstick, vice president and general manager of the Energy Automation Solutions business unit at Cooper Power Systems. ―Our work with Verizon shows they share the Smart Grid vision of providing integrated communications solutions to utilities as well as enabling them to leverage existing communication infrastructures to efficiently gather information from their distribution system.‖ ―Together with Cooper Power Systems, Verizon can bring utility companies the best-in-breed technology that takes advantage of the Verizon Wireless network,‖ said Michael Brander, vice president, enterprise sales for Verizon Wireless. ―The two network certified products are just one of the ways we are helping these companies be more productive.‖ Cooper Power Systems will initially offer two Verizon Network Certified products — an OutageAdvisor™ Fault Location and Detection Solution and a VARAdvisor™ Capacitor Bank Maintenance Solution. The OutageAdvisor™ Fault Location and Detection Solution transmits the location and other detailed information about fault conditions over the Verizon Wireless network. This solution capability helps a -More- Cooper Division – Page 2 utility to increase grid reliability and reduce the need for current costly, time-consuming methods that identify fault locations. The VARAdvisor™ Capacitor Bank Maintenance Solution helps a utility to save time and money by improving the overall energy efficiency of their grid by monitoring the status of fuses on distribution capacitor banks and notifying the utility of a fuse failure, so they can quickly identify the failure, replace the fuse, and get the capacitor bank back online—reducing losses. Cooper Power Systems smart sensor solutions improve system reliability, increase utility productivity, and reduce energy losses. Editor’s Note: For additional information, contact Correy Robertson at (412) 394-6611 or correy.robertson@bm.com. Cooper Power Systems: Commitment to Smart Grid Cooper Power Systems has long been a provider of comprehensive reliability and productivity solutions for utility, commercial, and industrial customers. The Energy Automation Solutions (EAS) group within Cooper Power Systems is a leading provider of innovative smart grid technologies and solutions that enable customers to optimize their electrical grid performance. These solutions include Advanced Metering Infrastructure (AMI), Demand Response (DR), Smart Sensors, Power Systems Engineering Software and Services, Substation Automation, and Feeder Automation. About Cooper Power Systems Cooper Power Systems, Inc., with 2010 revenues of approximately $1.2 billion, is a division of Cooper Industries plc (NYSE: CBE). Cooper Power Systems is a global manufacturer of world-class power delivery and reliability solutions for the electrical and industrial markets. Through its Energy Automation Solutions group, it is also a leading provider of software, communications and integration solutions that enable customers to increase productivity, improve system reliability, and reduce costs. For more information, please visit www.cooperpower.com or www.cooperpowereas.com. About Cooper Industries Cooper Industries plc (NYSE: CBE) is a global electrical products manufacturer with 2010 revenues of $5.1 billion. Founded in 1833, Cooper's sustained success is attributable to a constant focus on innovation, evolving business practices while maintaining the highest ethical standards and meeting customer needs. The Company has seven operating divisions with leading market positions and worldclass products and brands including: Bussmann electrical and electronic fuses; Crouse-Hinds and CEAG explosion-proof electrical equipment; Halo and Metalux lighting fixtures; and Kyle and McGrawEdison power systems products. With this broad range of products, Cooper is uniquely positioned for several long-term growth trends including the global infrastructure build-out, the need to improve the reliability and productivity of the electric grid, the demand for higher energy-efficient products and the need for improved electrical safety. In 2010 fifty-nine percent of total sales were to customers in the industrial and utility end-markets and thirty-nine percent of total sales were to customers outside the United States. Cooper has manufacturing facilities in 21 countries as of 2010. For more information, visit the website at www.cooperindustries.com. ### 2