The SR7-2G automatic voltage regulator ensures stable power output for Mecc Alte generators up to 85 kVA. Designed with 5A electronic stabilization technology, this three-phase or single-phase compatible AVR features comprehensive protection against over-excitation (25-55VDC) and under-frequency (42-60Hz). Technical specifications include 220-480VAC sensing input, 90VDC maximum output, and 1 percent voltage regulation accuracy. Built with EMI suppression filters and durable metal-plastic housing, the regulator maintains optimal performance for industrial generators. Package contains: 1x voltage regulator board, 1x English manual. Compatible with all M.A alternators requiring SR7 series regulators. 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.