automatic voltage regulator 1)CE Certificate, ISO 9001/2000 2) single phase, output ; 220V 3) Input voltage; 140v to 270v AC automatic voltage regulatorFeature; ... Model SCR-500VA,SCR-1000VA,,SCR-1500VA SCR-2000VA,SCR-3000VA, SCR-5000VA SCR ... distortion Insulating resistance Normally more than 2MΩ AC automatic voltage regulator SCR-2000VA