The float is a hollow float which operates according to the principle of lifting force. This hollow float is lifted by the rising liquid and pushed upward to an angle of 50° to the horizontal, then activated.The float can be fixed by screws on the side or placed on the liquid from above if there is an open tank. The switching points can be set with great precision thanks to the ballast weight supplied as standard.Fits almost all pumps. The float is very suitable for controlling the filling level of any liquid that does not attack its material, regardless of the degree of contamination.You can use this float as a full or empty indicator, to control pumps or valves and so on. If your pump has a power of more than 1.1 kW you will need to place a standard connector or power relay upstream, sold commercially.A 380/400V three-phase pump can be operated with a 380V power connector.