... : low operation cost, supply of electricity and thermal power at the same time, low maintenance cost4) Coupled with ... devices, auto shutdown6) Protection function: over-current, under-voltage, auto-regulate voltage, reverse power7) Monitor function: speed, water temperature, ... 3 phase, 4 lines 10) Rated voltage: 400V11) Rated speed: 1,500rpm/1,800rpm 12) Rated frequency: 50Hz / 60Hz13) Rated power ...