Phase Monitor Relay, Base Shape Octal, Contact Form SPDT, Contact Rating (AC) 10 A @ 277V, Contact Rating (DC) 7 A @ 30V, Current Rating 10 A, Input Voltage 190 to 500V AC, Monitored Parameters Phase Reversal, Number of Pins 8, Restart Auto, Restart Time Delay 1 sec, Mounting Style Plug-In, Body Depth 2.9 in, Body Height 1.77 in, Body Width 2.48 in, Electrical Operating Durability 100,000, Frequency 50/60 Hz, Maximum Operating Temperature 149 Degrees F, Maximum Switching Capacity 40 VA