The DPA53 series 3-phase Monitoring Relay for detection of incorrect phase sequence and phase loss. Using the front knob it can be decided the undervoltage set-point of the unit. Supply range from 208 to 240VAC and 380 to 480VAC covered by two multi-voltage relays. It is for mounting on DIN-rail. It has housing of 17.5mm wide suitable both for back and front panel mounting. Detects when 3-phase present and has the correct sequence Knob-adjustable undervoltage detection Measures own power supply LED indication for relay and power supply ON Applications Industrial, Power Management