... batteries. His simplified circuit controls makes our products smaller, lighter and increase the confiability, reducing the number of internal componets. ... working, Emergency Power Off, manual Shutdown, Bypass SCR fail, bypass sequence fail, Bypass over the limit, critical overload, battery exhausted, low ... <60 dB @ 1,5 m.DimensionDimension1000X1860X870mmWeight (without batteries)510KG three phase ups