Feature 1 The Automatic Voltage Regulator realizes the automatic adjustment of the generator output voltage by controlling the excitation current of the generator. 2 High voltage stability, suitable for 220/380/400VAC brushless generator. 3 Low frequency protection and slow voltage building function. 4 Built-in high breaking capacity fuse for better protection. 5 The voltage regulator uses flame retardant and high temperature resistant components to guarantee safety use. Features: The Automatic Voltage Regulator realizes the automatic adjustment of the generator output voltage by controlling the excitation current of the generator. High voltage stability, suitable for 220/380/400VAC brushless generator. Low frequency protection and slow voltage building function. Built-in high breaking capacity fuse for better protection. The voltage regulator uses flame retardant and high temperature resistant components to guarantee safety use. Specification: Model: GAVR-20B Voltage regulation rate: <0.5% Output current: 20ADC Select 50/60Hz with jumper wire Package list: 1 x Automatic Voltage Regulator