... currentsmooth start-up speed reliable start-up performancesmall impact on the power gridobvious energy-saving ... or multi-function 8 ICTRelay output2-way relay outputdisplayDisplay screeenSetting frequency, output frequency, current, power, motor speed, load ... CRelative humidity<90%, condensation is not allowedProtectionsOverload, instaneous power, phase-off, overvoltage, undervoltage, short circuit, ...