... ~60HzVoltage fluctuation: ±15%, frequency fluctuation: ±10%Overload capacity150%Rated current 60s; 200% rated current 10sRated ... relay outputdisplayDisplay screeenSetting frequency, output frequency, current, power, motor speed, load rate, input and output ... CRelative humidity<90%, condensation is not allowedProtectionsOverload, instaneous power, phase-off, overvoltage, undervoltage, short circuit, ...