Input Voltage 170~265 VAC 1 phase 2 wire Frequency 50/60 Hz selectable Output Max. 90 VDC @ 220 VAC input Current Continuous 75A, Intermittent 100A for 10 sec. Resistance Min. 1.5 Ohm Volt. Regulation < ±1% (with 4% engine governing) Voltage Build-up Residual volts at AVR terminal > 5 VAC (25 Hz) External Volts Adjustment ±20% Under Frequency Protection 60 Hz system presets knee point at 55 Hz 50 Hz system presets knee point at 45 Hz Operation Temperature -40~60 °C Dimensions 420.0 (L) x 150.0 (W) x 190.0 (H) mm