Specifications: Sensing Input: Voltage 220/400VAC,I phase 2 wire; Power Input:Voltage 180-240VAC.I phase 2 wire; Output Voltage:Max.90VDC@240VAC input; Current:Continuous 6A; Intermittent 12A for 10SEE. Resistance Min.10Ω Max.100Ω VoltS Regulation:<±0.5% (with 4%engine governing); Voltage Build-up:Residualvolts at AVR teminal>5VAC; External Volts Adjustment:±7% with 1 KΩ 1 watt trimmer; SotfStart Ramp Time:3sec.; Unit Power Dissipation:Max.8Watt; EMI Suppression:Internal Electromagnetic Interference Filtering; Thermal.Drift: 0.05%pero℃ chage in AVR ambient; Under Frequency Protection: 60Hz system presets knee point at 57HZ; (Factory Settings):50Hz system presets knee roint at 47HZ