2300 Badger Drive Waukesha, WI 53188-5951 Phone: 877-CPS-INFO (877-277-4636) www.cooperpower.com News Release Contact: Jules Layer Cooper Power Systems 763-543-7774 jules.layer@cooperindustries.com Cooper Power Systems Announces Yukon™ Advanced Energy Services Software IED Manager Suite Release 5.0 Cooper Power Systems latest release adds enhanced functionality for Centralized Management of IED Passwords to the already feature-rich and field-proven advanced energy services software platform WAUKESHA, WI, March 19, 2012 — Cooper Power Systems, a division of Cooper Industries plc (NYSE: CBE), announced today the availability of its Yukon™ IED Manager Suite (IMS) release 5.0. This Yukon IMS 5.0 release represents the latest effort by Cooper Power Systems to help utilities improve their operational efficiency and meet regulatory requirements. Cooper Power Systems IMS 5.0 release includes the Password Manager module – providing the capability to remotely manage intelligent electronic device (IED) passwords. Through a simple web-based management interface with granular access control—IMS allows the viewing, changing, and updating of passwords for devices such as the Cooper Power Systems SMP™ Gateway and Schweitzer Engineering Laboratories, Inc. (SEL) relays. Generated passwords can meet all NERC CIP complexity requirements and are securely stored in an encrypted database – providing failsafe operation against password loss. The IMS release 5.0 protects a utility’s critical assets through role-based access control where groups of users can be granted permissions to perform operations to groups of IEDs. The IMS Password Manager builds on this model and users can be granted permission to view only the passwords of the IEDs to which they have access; moreover, users can only perform operations they are authorized to do, including remote password updates. Automating password updates through IMS requires less effort than manually updating passwords – and reduces errors. Additionally, IMS hides device passwords through the use of the Passthrough Manager auto-login capability; thereby, reducing the need for shared accounts. ―The Yukon IED Manager Suite 5.0 offers utilities a secure and centralized platform to manage their IEDs. With the new Password Manager module, utilities now have a powerful tool to manage passwords in a NERC CIP-compliant manner,‖ said Mark Thurman, president, Cooper Power Systems, a division of Cooper Industries plc (NYSE: CBE). ―It also allows for regular password updates and helps customers securely manage and track their shared accounts – as well as protect access to their devices.‖ Cooper Power Systems enhances electric system management, security, and reliability by helping customers with its innovative IMS software and technical expertise. The introduction of IED -MORE- 2- Yukon™ Advanced Energy Services Software IED Manager Suite Release 5.0 Manager Suite release 5.0 exemplifies Cooper Power Systems dedication to the creation of unfailing and secure assets to support automation systems – further underlining Cooper Power Systems merit as a partner to grow with. About Cooper Power Systems Cooper Power Systems, a subsidiary of Cooper Industries plc (NYSE: CBE), and a global manufacturer and provider of world-class power delivery apparatus and solutions for the utility, commercial, and industrial markets. The company maintains a complete portfolio of products and services required to transform, protect, connect, and build out an electric power system backbone. Smart apparatus – voltage regulators, capacitors, reclosers, switchgear, smart sensors, and controls – integrated with enterprise level software and secure communications enable customers to increase productivity, optimize asset efficiency, improve system reliability, and reduce costs. Reliability and grid-point solutions include: Integrated Volt/Var Control (IVVC), feeder, and substation automation systems. End-point solutions include: Advanced Metering Infrastructure (AMI) and Demand Response (DR). The company is a leading provider of engineering optimization and modeling tools. For more information, please visit www.cooperpower.com. About Cooper Industries Cooper Industries plc (NYSE: CBE) is a global electrical products manufacturer with 2011 revenues of $5.4 billion. Founded in 1833 Cooper's sustained success is attributable to a constant focus on innovation and evolving business practices, while maintaining the highest ethical standards and meeting customer needs. The Company has seven operating divisions with leading market positions and world-class 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 McGraw-Edison 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 2011 sixty-two percent of total sales were to customers in the industrial and utility end-markets and forty percent of total sales were to customers outside the United States. Cooper has manufacturing facilities in 23 countries as of 2011. For more information, visit the website at www.cooperindustries.com. ###