1,APPLICABLE GENERATOR: AVR automatic generator regulator board, suitable for STC 3 phase 220 380 400VAC voltage generator, with good compatibility. 2,EXCELLENT COMPONENT: The voltage regulator is made of excellent electronic components to ensure stable performance and greatly extend the service life. 3,GOOD PROTECTION: The automatic voltage regulator has low frequency protection, which establishes a protection circuit when the generator speed drops. 4,EASY CONNECTION: The generator voltage regulator has standard wiring, convenient to connect and use, and has a wide range of applications. 5,GENERATOR PART: The automatic voltage regulator can directly replace the old or damaged generator accessory, which is convenient and practical. Item Type: Voltage Regulator Board Model: GB170C Shunt Current: 10A 1 x Voltage Regulator Board Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin