Schneider Electric Voltage monitoring relay
Zelio controller This voltage monitoring relay monitors three-phase supplies (220-480 VAC) for phase failure and the mains voltage for exceeding and falling below an adjustable threshold (-20-2%/+2-+20% depending on the voltage). For indication, two relay changers are present that can be loaded with up to 5 A. In this case one relay is available for the over- and under-reporting. In case of phase failure both relays switch. The two limit values and a switch-off delay can be set. Settings are made via control elements on the front that can be protected against changes using a transparent cover. Two LEDs indicate the status. The power supply of the device is taken from the measurement voltage. The width is 17.5 mm and it is installed on the DIN rail.This text is machine translated.