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Pressure switch 1.4-2.8 bar (fitting) AQUATICA (779530). The pressure switch is used in automatic water supply systems where the working medium is water. By operating principle, the device is a two-contact relay for switching electrical circuits, triggered when the corresponding water pressure values are reached. Functions: Automatic start and stop of the pump depending on pressure; Adjustable pressure range. Technical characteristics: Voltage: 220-240 V; Frequency: 50 Hz; Protection class IP44. Operating conditions: Maximum ambient temperature: +40°C; The pressure switch can only operate together with a hydraulic accumulator. Technical data: Maximum connected electric motor power (kW): 1.5; Maximum current (A): 12; Thread diameter: 1/4