Könner & Söhnen 5500W petrol E-start power generator, 1x16A(230V)/1x16A(400V), 12V, volt regulator, low oil protection, surge protection, display, KS 7000E-1/3 Highly productive models with phase switching system VTS (voltage transfer switch), Same capacity for 1 and 3 phases With the unique, innovative phase switching system VTS (Voltage Transfer Switch), the generator can be used in both three-phase operation (380V) and single-phase operation (230V) without loss of power. There is no need to purchase, store, operate and transport multiple generators to the property. You can simply switch the working mode and use the “Könner&Söhnen” generator with the phase switching system at the desired voltage. DANGER! The goods are sold without engine oil. The oil must be introduced before the first s.