... Permanent Magnet Generator type voltage regulator is a compatible replacement for Newage Stamford MX321 and Onan 305-0823. MX321 is ... the generator output voltage with the specified limits,compensating for load,speed,temperature and power factor of the generator ... of generator output voltage. SpecificationFeaturesVoltage Regulation < ±0.5% RMS For Use In Parallel Operation RAMP, DIP, DWELL, DROOP, RMS, ...