Power supply: 110VAC, 230VAC ± 25%, 400VAC ± 25% 50/60HZ; 24/36/48/72VDC； Environmental temperature: 25-80 ℃, -40-60 ℃ Environmental humidity: 95% RH Adjustable speed range: 10-100% Adjustable torque range: 10-200% (not specified)