... , used for electro chemical macining, meet piece works power supply requirement. 2. Main technical parameters AC input voltage 380V± ... 0.3MPa, outlet water pressure is less than 0.05MPa, PH value is within 6~8, water quality: Resistivity≥20kΩ ... Working ConditionUsed indoor, ambient temperature: -100C~+400CThree phase input power supply requirements: 380VAC±10%. Three phase power imbalance degree is less ...