Phoenix Contact GmbH and Co. KG is a worldwide leading manufacturer of electrical connection technology, electronical interface and industrial automation technology. Founded at the beginning of the 1920s in Essen the company now employs 10200 people worldwide, of which more than 5600 work in Germany. Part of the Phoenix Contact Group in Germany are the companies Phoenix Contact Electronics, Bad Pyrmont, for printed circuit board assembly in surface mount technology; Phoenix Feinbau, Luedenscheid, for metal stamping and bending, as well as connector specialist Coninvers, Herrenberg, KW-Software, Lemgo, Innominate Security Technologies, Berlin and Sütron electronic, Filderstadt. Further production plants are located in Harrisburg, Pennsylvania (USA), Nanjing (China), Nowy Tomysl (Poland), New Delhi (India) and Sao Paulo (Brazil). Today, Phoenix Contact offers far more than 20,000 products on the world market, both individual products and comprehensive system solutions. With the TRABTECH product range, Phoenix Contact provides components for the surge protection of power supply units, data interfaces, transmitting and receiving stations as well as MCR applications. On the market, Phoenix Contact has one of the most comprehensive product ranges. Due to efficient protection mechanisms, these modules ensure a permanent operability of devices and systems applied in trade and industry as well as the private household. The product range comprises modern components and system solutions: besides a diverse range of terminal blocks and special-purpose terminals, printed circuit terminal blocks and connectors as well as interface and surge voltage protection components, hardware and software systems offer comprehensive automation solutions, based on the fieldbus system Interbus that is standardized according to IEC 61158.