Feature: 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. Specification: Item Type: Automatic Voltage Regulator Material: ABS Model: VR6 Input Voltage: 180-280V AC 50/60Hz single phase or three phase PMG Excitation Voltage: 63-105V AC 100/240Hz three phase Input Detection Burden: Less than 1VA External Voltage Regulating Rheostat: 10KΩ Adjustment Accuracy: ±5% normal response of voltage setting value Response Time: Less than 4ms. Package List: 1 x Automatic Voltage Regulator1 x Manual1 x Slot Screwdriver4 x Screw4 x Washer4 x Nut4 x Gasket