... , R449 Technical Data:The R250 is an analogic Automatic Voltage Regulator with transistor.Applications Alternators LSA 42.2, 43. ... Compliance with: IEC, VDE, NEMA, BS, CSA, UL508 CE low voltage.Main characteristicsVoltage regulation +/- 0.5% at steady state and constant ... response time(500 ms) for a transient voltage variation amplitude of ± 20%.Voltage setting P1.Stability setting P2.Supply protected ...