WPC-10 Digital Water Pressure Switch Digital Display1pc Digital Pressure Control Switch WPC 10 Digital Display WPC 10 Eletronic Pressure Controller for Water Pump With G1 2"Adapter Technical Parameter: Pressure Range 0 10KG CM2 Voltage Supply 220Vac(You require a 3 phase AC contactor with 380V pump) Technical Parameter: Pressure Range 0 10KG CM2 Voltage Supply 220Vac(You require a 3 phase AC contactor with 380V pump) Connection G1 2(Standard),it also can be customized Overload Capacity 220V,10A;