U.S. Administrative Office 600 Travis St., Suite 5600 Houston, TX 77002 Phone: (713) 209-8400 www.cooperindustries.com News Release Contact: Correy Robertson (412) 394-6611 correy.robertson@bm.com Cooper Industries to Showcase New Wind Power Productivity and Protection Solutions New products from Cooper Power Systems and Cooper Bussmann at WINDPOWER 2011. WINDPOWER 2011 – Cooper Industries plc (NYSE: CBE) continues to expand its portfolio of renewable energy solutions, and will display several new offerings from two of its divisions in booth #4527 at the WINDPOWER 2011 Conference & Exhibition, May 22-25, in Anaheim, California. Cooper Power Systems The new Cooper Power Systems 33kV and 36kV DirectConnect Elbow Arrester cuts installation time by 80 percent. This cost-effective choice for wind farm customers replaces three separate components: the bushing extender, loadbreak reducing tap plug, and the traditional 200A elbow arrester. Cooper Power Systems also offers loadbreak elbow products with a jacket seal option that protects jacketed cables from the effects of moisture on medium-voltage cables. This extra protection helps customers avoid costly replacements and outages. By integrating the jacket seal with the best-in-class elbow, Cooper Power Systems is able to eliminate additional kits, instructions, and parts. Cooper Power Systems will also unveil its portfolio of elbow arresters with the highest temporary overvoltage (TOV) characteristics in the industry .This enhancement to the 33kV and 36kV M.O.V.E. Elbow Arresters – available June 2011 – delivers superior protection to the collector system. The arresters are easily installed or retrofitted into 35kV large interface loadbreak bushings, 600A bushing adapters, and Bol-T, BT-Tap and T OP-II separable connectors. Cooper Power Systems offers a host of products and solutions designed to increase the effectiveness of a wind power system. Envirotran™ pad-mounted distribution transformers with StormTrapper™ low voltage secondary arresters provide optimum field performance at the base of the tower. Capacitors and station class arresters are part of an integrated Volt/VAR solution that reduces loss and maximizes -More- Cooper Industries – Page 2 system capacity at the substation. Envirotemp™ FR3™ fluid is a natural ester dielectric coolant specifically formulated for use in distribution and power transformers. Cooper Bussmann The new Cooper Bussmann Wind Power Surge Suppression System includes advanced surge and lightning protection products for wind power systems. Because wind power installations are vulnerable to overvoltages and surges from lighting strikes and static discharges, it is vital that surge suppressor elements are easily monitored for performance. The Cooper Bussmann design provides standard easyID™ visual indication and remote contact signaling. Plus the product’s modular DIN-rail design with color-coding and rejection features make it easy to identify, install and maintain. Cooper Bussmann High-Speed Square Body Fuses are ideal for wind power applications which require compact design with superior performance. The unique design of these fuses provides minimal energy let-through, low operating temperature and low watts loss. In addition, Cooper Bussmann can manufacture custom square body fuses to meet the needs of any complex application "The wind power industry is rapidly growing, and Cooper is proud to offer products and solutions that can help customers throughout the planning, design, installation and operation of wind farm projects,” said Cooper Industries CEO Kirk Hachigian. “We are constantly working to develop new, innovative products, like the Cooper Power Systems DirectConnect Elbow Arrester and Cooper Bussmann advanced circuit protection devices, that help our customers meet their business and energy goals. With the benefits of easy installation and first-class performance, our products exceed customer needs and protect their investments.” Representatives from Cooper Industries and its divisions will be on hand throughout WINDPOWER 2011. Learn more at Booth #4527 or www.cooperindustries.com. About Cooper Bussmann Cooper Bussmann, the industry leader in critical circuit protection, power management and electrical safety, is a division of Cooper Industries plc (NYSE: CBE), and is headquartered in St. Louis, Missouri, USA. The company is committed to the development, manufacturing and marketing of innovative circuit and power electronics protection and power management products; and provides engineering, training and testing services globally for the electrical, electronics and transportation industries. The company provides superior brands, including Cooper Bussmann® circuit protection products and services, Coiltronics® magnetics, and OMNEX Trusted Wireless® systems. Additional information about Cooper Bussmann is available online at www.cooperbussmann.com. About Cooper Power Systems Cooper Power Systems, with 2010 revenues of approximately $1.2 billion, is a division of Cooper Industries plc (NYSE: CBE), and a global manufacturer of world-class power delivery and reliability -More- Cooper Industries – Page 3 solutions for the utility, commercial, and industrial markets. Cooper Power Systems is a leading provider of innovative Smart Grid technologies that optimize 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. The company 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. 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. ###