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 for 10 sec.
Over Excitation Protection
25~55VDC @ 0.1~20 sec.
Under Frequency Protection
U/F Range 42~60HZ
Voltage Regulation
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
The SR-7 type voltage regulator is an advanced design electronic 5 Amp regulator that ensures excellent performance 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 for the machine. The SR-7 regulator is suitable for being used with all M.A alternators and is standard supply for power outputs below 85 KVA, both three-phase and single phase.or
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 for 10 sec.
Over Excitation Protection
25~55VDC @ 0.1~20 sec.
Under Frequency Protection
U/F Range 42~60HZ
Voltage Regulation
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