-7 type voltage regulator is an advanced design electronic 5 Amp regulator that ensures excellent performance of alternators while they are running and during starting. The regulator is equipped with a complete protection system against operating conditions that could be dangerous for the machine. The SR7 regulator is suitable for use with all M.A alternators and is standard supply for outputs below 85 kVA, both three-phase and single phase. -7 AVR available for quick delivery. -7 AVR / Automatic Voltage Regulator AVR SR7, AVR SR7-2G for Generator Sensing Input Terminals 1,2; 3,4; 5,6 Can be connected to Y or Delta configurations Input: 220~480VAC Single Phase 50/60Hz Input Range: 50~280VAC (1,2) 50/60Hz Output Voltage: Maximum 90VDC @ 220VAC Harmonic Wave Output Current: Continuous 6A, Maximum 8A for 10 seconds Over Excitation Protection: 25~55VDC @ 0.1~20 seconds Under Frequency Protection Range: 42~60Hz Voltage Regulation: Less than 1% (with 6% engine governing) External Volts Adjustment: 5% @ 100K Voltage Build-up: Residual Voltage above 5 VAC 25Hz EMI Suppression: Internal Electromagnetic Interference Filtering Excitation Winding Resistance: DC Resistance 10~100 ohms Material: Plastic + Metal Color: Black Package Contents: 1 x English manual 1 x voltage regulator board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.