Spare part suitable for almost all domestic water installations at 230V You will receive a pressure switch for domestic water installations. You will receive a mechanical pressure switch, which can be used for domestic water installations, expansion vessels, or garden water pumps. AC pressure switch. Infinitely adjustable switch-on and switch-off pressure. This is a single-phase pressure switch, which switches on phase and neutral simultaneously. The device starts the pump automatically according to the water pressure. If in the water circuit, the cut-in pressure drops below a certain limit, the pump starts up, then it stops as soon as the pressure is regained. Adjusting the pressure switch: 1. Loosen the differential nut (2) 2. Adjust the start pressure (1) 3. Tighten the differential screw (2) until the stop pressure Netz =Network Erde = Earth If your pump has a power of more than 1.1 kW you will need to place a connector or usual power relay, sold on the market, upstream. A 380/400V three-phase pump can be operated with a 380V power connector. Pressure switch SK-9 230V 1-phase domestic pump well pump control Reference50622RegistrierungsnummerWEEE DE45283704number of packages1MaterialMetal / PlasticColorblackProtection classIP44 (splash proof)Input voltage220-240V 10(10)AConnections13 mm (1/4 Inch)temperature range ranging from0 - 55CPressuremax. Operating pressure 6 bar, Pressure adjustment range 1.4 to 4.1 bar, Starting pressure adjustment 1.4 - 2.8 barProductPressure switchPlugWithout ConnectorPump control / Pressure switchMax. 10 A, Phase 1Weight [kg]0.3760Package: Height in mm110Package: Length in mm105Package: Width in mm65AvailabilityDispatch immediately, dispatch in 3-5 working days*ShippingPaket