Intelligent surge protection

22 September 2015

The Plugtrab PT-IQ surge protection devices for MCR and process technology from Phoenix Contact, give plant operators a warning before protection of the plant is lost. 

To achieve this, each voltage-limiting component within the protective plugs is continuously monitored. If the performance limit has been reached as a result of frequent surge voltages, this is indicated by a yellow signal on the protective device and via remote signalling. The arresters remain functional and the plant is protected. 

Plugtrab PT-IQ Ex protective devices are available for installation in Ex Zone 2. The intrinsically safe protective circuits can be routed up to Ex Zone 0.

Multi-level monitoring and signalling, ensures that the plant operator always knows the status of protective devices and therefore has an overview of surge voltage protection in the plant. 

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