... driver, current: 2~6A Power input type:24V~55V AC microstepping driver, current: 2-6AQJ6060AC quick delivery in 2 ... -15~40°C Humidity<90%.I/O Ports:1.AC,AC:AC power positive pole 24V~55V ACNote:Must guard against ... exceeding 55V AC, so as not to damage the module2.GND:DC ... current over 3A, fix the module on big metal shell , or use axle flows fan dispels the heat, ...