... perfect protection function*Designed to suitable for critical grid environment. Technical DataModelTLS-ZB 100KW DC InputMPPT ... Power100KWRate voltageAC380Vvoltage rangeAC 342 ~ 418 VNormal Grid Frequency50/60Hz(Grid frequency)Phases3 phase 4 wirePower Factor>0. ... .GridAnti-islanding, over/under voltage of grid, over/under frequency of grid. EnvironmentEnvironmentNo corrosion gas, flammable gas, ...