... frequency converterFeatures1.Have a high voltage, over current and short-circuit and overheat warning device 2.16 bit microprocessors, the intelligent ... displayProtection functionover voltage, over current, over temperature, over load, short circuit, and automatic alarmInsulation reactance500Vdc 20MΩPressure endurance1800Vac/5mA/1minuteCooling methodCompulsive ...