' Phase Monitor Relay, Input Voltage 190 to 500VAC, Contact Amp Rating (Resistive) 10, Contact Form SPDT, 3 Phase, Pick Up Range 190 to 500VAC, Drop-Out Range 75 Percent to 95 Percent, Trip Delay Power Up 1-300 Sec, Phase Loss & Reversal 100ms, Phase Unbalance 2 Sec, Undervoltage 0.1-20 Sec, Voltage Unbalance 2 to 10, Base Type Octal, Number of Contacts 1, Pins 8, Power Rating 3, Socket G1753902 '