D25User's Manual GE Grid Solutions154 994-0081-3.00-21 GE InformationElectrical Specifications, ContinuedAuxiliary Digital OutputsThree single digital outputs for System Fail indication, Radio Keying and Auxiliary Digital outputSystem Fail Relay Contacts 1 Form B (Normally Closed) RelayRadio keying, and auxiliary relay 1 Form A (Normally Open) RelayMaximum Switching Voltage 220 V dcMinimum Switching Voltage 10 μA, 10 mVdcCarry Continuous 2.00 ABreak (DC resistive) Voltage Current24 Vdc 2.00 A48 Vdc 1.25 A110 Vdc 0.55 A125 Vdc 0.48 A220 Vdc 0.27 AOperate time < 4 msMax switching speed 20 changes/sec at rated break loadContact material Silver (Ag) with Gold (Au) flashDC Analog Inputs16 optically isolated differential inputsMeasurement Range 120% of nominalOverload Voltage ±30 V dc (NM) continuous±200 V dc (CM) continuousNominal Voltage Input Range ±5 V dcVoltage Input Impedance Greater than 10 MΩNominal Current Input RangeOptions±1 mA, ±5 mA, ±10 mA, or ±20 mACurrent Input Burden 5k to 250Ω (1 to 20 mA)AC Analog MeasurementDirect AC analog inputs from CTs and PTs. One to six 3-phase circuits. 15 AC analog inputsorganized in groups of three (3) inputs, transformer isolatedLine Frequency 50/60 Hz, nominal ±5 HzAC Analog MeasurementDirect AC analog inputs from CTs and PTs. One to six 3-phase circuits. 15 AC analog inputsorganized in groups of three (3) inputs, transformer isolatedLine Frequency 50/60 Hz, nominal ±5 Hz