Electronic Devices

Processes are becoming more and more complex, thus safety aspect plays a large role here. It is therefore important to have measurement and control monitoring of drives in modern switchgear and control gear systems. The range from Phoenix Contact covers voltage and current monitoring for single phase and three phase networks and for consumers and controllers. Requirements pertaining to safety and system availability increase constantly regardless of the sector. Processes are becoming more and more complex, not only in the mechanical engineering and chemical industry but also in plant automation technology. Demands on power engineering are also constantly on the raise. Trouble free and therefore cost-effective operation can be achieved only with continuous monitoring of significant network and system parameters. Electronic monitoring relays of the EMD series are available for the widest varieties of monitoring tasks avoid consequences of errors or to keep them within times. The operating states are singled using colored LEDs and the errors that may occur can be sent to a controller through a potential-free contact or can shut down a section of the system. Some device versions are equipped with startup and response delays in order to briefly tolerate

measured values outside the fixed monitoring range.

Monitoring Relay : The monitoring modules of the EMD series offer a cost-effective solution for the monitoring task such as current, voltage, Phase parameters, coil temperature, motor load and fluid level

Timer Relay : A practical combination of functions and time setting ranges as well as devices with special functions (Star-Delta) are available for the timer relays of the ETD series.

Function Blocks : In the function blocks, simple functions down to the component level are packaged for industrial use and provided with professional connection methods.

Full Product Range :

• Single - Phase Power monitoring
• Single – Phase Voltage monitoring
• Three – Phase Voltage monitoring (Incl. Phase monitoring)
• Phase sequence monitoring
• Thermistor monitoring
• Voltage indication modules
• Load Monitoring
• Filling level monitoring

Advantages of using Electronic Monitoring Devices:

• Frequency range from 16.67 up to 400 Hz.
• Under or over voltage or over current detection.
• Phase sequence, phase failure and asymmetry recognition.