The HVR electronic regulator is made with state-of-the-art electronic components which enable the user to obtain, in reduced dimensions, all the functions required to control any type of alternator granting a voltage static error within ± 1. Three different models are available: • HVR-10 with adjustable protection from overload • HVR-11 single-phase sensing. Wide stability control, adjustable protection from low voltage operation and from overload, remote potentiometer inlet. • HVR-30 three-phase sensing. Wide stability control, adjustable protection from low voltage operation and from overload. Incorporated radio filter and remote potentiometer inlet or control through an external signal.