AVR-20 AVR20 AVR Automatic Voltage Regulator 20A Brushless Generator Stabilizer Diesel Genset Parts Specification: Phases:single phase Voltage Adjustment Range:210-250 volts min Frequency:50/60HZ Frequency Protection Adj Range:40-50HZ Output Voltage:0-115 volts-DC at 230 volts Output Current:20A continuous Residual Voltage For Build Up:5 volts minimal Regulation:+/-2% tyhristor Power Output Stage: half of wave tyhristor Internal Fusing:10A (fast appearing fuse) Operating temp:-10"C (14F) TO 60"C (140”F) Storage temp:-20"C (-4F) TO 80"C (176”F) Maximum humidity:95% non-condensing Dimensions:125*68*35mm(L*W*H) Fixing centers:11 5mm, 2xM6