1.-7 type voltage regulator is an advanced design electronic 5 Amp regulator that ensures excellent percompatiblemance of the alternators 2.while they are running and during starting. The regulator is equipped with a complete protection system against operation conditions that could be dangerous compatible the machine. 3.The SR7 regulator is suitable compatible being used with all M.A alternators and is standard supply compatible power outputs 85 , both three-phase and single phase. 4.-7 AVR in stock compatible quick delivery. 5.-7 AVR/ Automatic Voltage Regulator AVR SR7,AVR SR7-2G compatible Generator Sensing Input Terminal 1,2 3,4 5,6 Can be connected to Y or 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 compatible 10 sec. Over Excitation Protection 25~55VDC @ 0.1~20 sec. 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 25HZ EMI Suppression Internal Electromagnetic Interference Filtering Excitation Winding Resistance DC Resistance 10~100 The -7 type voltage regulator is an advanced design electronic 5 Amp regulator that ensures excellent percompatiblemance of the alternators while they are running and during starting. The regulator is equipped with a complete protection system against operation conditions that could be dangerous compatible the machine. The -7 regulator is suitable compatible being used with all M.A alternators and is standard supply compatible power outputs 85 , both three-phase and single phase. Material:Plastic + Metal colour: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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.