EM520M integrated low-voltage motor protection device is suitable for 380V or 690V low-voltage systems. It serves as a new generation of intelligent integrated device for the protection, monitoring and control of low-voltage motor feeder terminals. In addition to advanced motor protection, control and monitoring functions, it also provides equipment Maintenance and operation records, trip records and other important information bring great convenience to modern equipment management. EM520M device is widely used in various industries such as petrochemical, electric power, coal mine, smelting, railway, energy saving and civil construction.