Features Excellent Insulation: Ensures high reliability in harsh environments and high vibration levels, providing long-lasting performance. Applicable Model: Specifically designed for Marelli generators, with a steady state voltage regulation rate of 0.5% for practical use. Voltage Build Up: Automatically builds up voltage when remanence exceeds 4V 25Hz, ensuring consistent power output. ABS Housing: stable ABS material offers excellent wear resistance, extending the service life of the voltage stabilizer. Common Accessories: Essential generator accessory for quick and stable voltage regulation, ensuring reliable power supply. Specification: Item Type: Automatic Voltage Regulator Material: ABS Model: M40FA640A Voltage Build Up: When the remanence is greater than 4V 25Hz, the voltage will be built automatically Input Power: Voltage 150-278V 50, 60Hz Induction Detection: AC170-270V, 380-415V, 440-480V single phase or 3 phase, 50, 60Hz Steady State Pressure Regulation Rate: ±0.5% (within 4% engine speed variation range) Working Temperature: -30℃-70℃ Application: Suitable for Marelli generators Package List: 1 x Automatic Voltage Regulator 1 x Instruction Package List 1 x Automatic Voltage Regulator 1 x Instruction