... AC signals3.Integration of measurement and protection functions 4.Multiple protection functions5.Supports multiple motor startup modes6 ... , underload, unbalance, phase loss of currents2.Overvoltage, undervoltage, unbalance, phase loss of voltages3.Phase order protection4.Stall automatic ... JR1~JR4 relays, 8A/240VAC7.Current analog output: 4~20mA, maximum load: 600 ohms, isolated8.Communication: RS ...