1、Wide Input Range: AVR board supports AC180V to 280V single phase or 3 phase input, and the PMG excitation voltage is AC63V to 105V 3 phase. 2、Good Protection: AVR Board has voltage regulation and underfrequency protection to avoid damage, prolongs the service life. 3、High Performance: Automatic voltage regulator has high accuracy, rapid response which is less than 4ms, and stable adjustment performance. 4、Excellent Components: Using high grade capacitor and diode with excellent performance, the voltage regulation board has high reliability. 5、Flame Retardant: Adopt flame retardant and high temperature resistant materials, the diesel generator voltage regulator is safe to use. Item Type: Automatic Voltage Regulator Material: ABS Model: VR6 Input Detection Burden: Less than 1VA Response Time: Less than 4ms 1 x Automatic Voltage Regulator 1 x Manual 1 x Slot Screwdriver 4 x Screw 4 x Washer 4 x Nut 4 x Gasket