Surge Protection Device retrofits to Fieldbus systems.

Press Release Summary:

Featuring plug-in format, Model FS32 prevents surges and transient over-voltages conducted along Trunk, or Spurs of field bus systems from damaging associated electronics. Device uses solid state electronics and gas-filled discharge tube to provide surge protection up to 20 kA. In operation, Model FS32 does not adversely affect performance of fieldbus or connected equipment, and allows signals to pass with little attenuation while diverting surge currents safely to earth.

Original Press Release:

MTL Releases Next Generation Fieldbus Surge Protection

LUTON, UK, - MTL Instruments, a business unit of Cooper Crouse-Hinds, today released a new Surge Protection Device (SPD) that can be retrofitted to Foundation(TM) fieldbus systems. The FS32 prevents surges and transient over-voltages conducted along the Trunk, or Spurs, of fieldbus systems from damaging the associated electronics such as terminators, spur blocks and the bus control equipment. Designed to fit MTL's latest fieldbus products to protect spurs, the FS32 can also be used to protect spurs on Megablock wiring hubs. In addition, the plug-in format makes the product easy to retrofit, and the small footprint assists in the reduction of the size of junction boxes.

The multi-stage hybrid surge protection network at the heart of the FS32 uses a combination of solid state electronics, and a gas filled discharge tube, to provide surge protection up to 20kA. This impressive surge protection circuit is designed to exhibit exceptionally low line resistance, and has negligible voltage drop to the spurs.

In operation the FS32 does not adversely affect the performance, or operation, of the fieldbus or connected equipment. The FS32 allows signals to pass with little attenuation, whilst diverting surge currents safely to earth (ground) and clamping output voltages to safe levels. Fully automatic in operation, the FS32 device reacts immediately to ensure that the equipment is never exposed to damaging surges between lines or the lines to earth (ground). Reacting instantaneously, the FS32 redirects surges safely to earth (ground) and then resets automatically.

About MTL

MTL Instruments, a business unit of Cooper Crouse-Hinds, is a world leader in the development and supply of electronic instrumentation and protection equipment for the process control and telecommunications industries. Many of the world's most critical processes are monitored, controlled or protected by MTL equipment and the Group is distinguished by the quality and reliability of its products, its global network of sales-and-support centres and its acknowledged position as a thought-leader in this high technology marketplace. With 20 dedicated sales centres in 13 countries and a further 131 MTL representatives in 69 countries, MTL's expertise in Intrinsic Safety, Industrial Networks, Surge Protection and Operator Displays/HMI is unsurpassed.

About Cooper Crouse-Hinds

Headquartered in Syracuse, N.Y., Cooper Crouse-Hinds integrates a comprehensive line of electrical and instrumentation products with expert support, industry insights and local availability to improve safety and productivity in the most demanding industrial and commercial environments worldwide. Cooper Crouse-Hinds manufactures over 100,000 products, including conduit and cable fittings; enclosures; plugs and receptacles; industrial lighting fixtures; signals and alarms; controls and electrical apparatus; commercial outlet boxes and hubs; specialized interconnect products branded Cooper Interconnect; and electronic components and protection equipment for process control branded MTL Instruments Group. Cooper Crouse-Hinds products are sold worldwide and meet all local and international code requirements. They are used in general construction or in harsh and hazardous environments across the globe, performing to the highest standard of safety and reliability. For more information, visit

About Cooper Industries

Cooper Industries plc (NYSE: CBE) is a global manufacturer with 2009 revenues of $5.1 billion, approximately eighty-nine percent of which are from electrical products. Founded in 1833, Cooper's sustained level of 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 eight operating divisions with leading market share 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 2009, sixty-one 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 23 countries as of 2009. For more information, visit the website at

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