-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 power outputs below 85, both three-phase and single phase. -7 AVR in stock 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. 220~480VAC Single Phase 50/60HZ. Power Input: 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. Suppression: Internal Electromagnetic Interference Filtering. Excitation Winding Resistance: DC Resistance 10~100. Material: Plastic + Metal. Color: Black. Package Contents: 1 x English manual, 1 x voltage regulator board. Only the items listed are included.