Feeding of High Frequency equipment with up to 4,0 kW power, with total monitoring of the motor e feeding net, inhibiting any operational failures that may put in risk the operator’s or the equipment’s (attached to it) physical integrity, be it because of overcurrent, undervoltage, overvoltage, crash and rupture of disks and overloading. Furthermore, it offers a high electric power reduction and practicality at connecting 220Volt three-phase nets.