3-phase voltage monitoring relay for phase sequence and phase loss. Using the front knob it can be decided the undervoltage setpoint of the unit.supply range from 320 to 480VAC covered by two multivolgae relays.

• 3-phase monitoring relay for phase sequence and phase loss
• Detects when all phases are present and have the correct sequence
• Knob-adjustable undervoltage detection
• Measures own power supply
• Power supply range:320 to 552 VAC (Ph-Ph)
• Output: 5A SPDT relay normally energized
• For mounting on DIN-rail in accordance with DIN/EN 50 022
• 17.5mm DIN-rail housing(DIN 43880)
• LED indication for relay and power supply ON