3-Phase relay for detection of incorrect phase sequence, total and partial phase loss. Supply range from 208 to 480 VAC. For mounting on DINrail. Housing 17.5 mm wide, SPDT relay output, suitable for back and front panel mounting. The device detects regenerated voltage up to 85% of the nominal voltage (phase-phase). Type Phase Loss, Phase Sequence Trip Status Energized High Trip Range 177 ~ 550V AC Voltage - Supply 208 ~ 480VAC Output Type Relay Circuit SPDT (1 Form C) Contact Rating @ Voltage 5A @ 250VAC Mounting Type DIN Rail Operating Temperature -20°C ~ 50°C