Phase Monitor Relay, Input or Control Voltage 208 to 480V AC, AC Contact Rating - Relay 3A @ 250V, 5A @ 24V, DC Contact Rating - Relay 1.00A @ 24V, Number of Pins - Relay 12, Mounting - Relay DIN Rail, Contact Form - Relay DPDT, Over Voltage Adjustable 2 to 20 Percent of Line Voltage Setting, Under Voltage 193 to 484V AC, Phase Loss Sensitivity Yes, Phase Reversal Yes, Phase Unbalance Adjustable 5 to 15 Percent, Restart Auto