... Wave distortion: <1%,6.Isolation transformer output, safe and credible,7.Auto-protection and alarm for ... over temperature, over load, short circuit, and automatic alarmInsulation reactanceAbove 500Vdc 20MΩPressure endurance insulation1800Vac/5Ma/ ... 1minuteCooling device Compulsive fan coolingOthersisolation transformer output, safe reliable, good anti-jammingenvironmentWorking temperature-10°C ...