The Open Type IP00, which provides front protection for the internal parts of the variable frequency power supply that are not accessible to the human touch.
(2) The closed-type inverters with IP20 and IP21 protection structures feature an outer casing around the power supply, allowing for wall-mounted installation on the walls inside buildings. This type is suitable for most indoor installation environments (this is a commonly used protection structure by Tongyuan). Aviation ground power supply 2, 36V aviation power supply 1, 400Hz inverter 7, 115/200V power supply 2, 27V DC power supply 5, 400Hz power supply 12, aviation power supply
(3) Sealed IP40, IP42, suitable for industrial environments with poor conditions.
(4) The sealed type with IP54, IP55 ratings features dust and water-resistant protection structures, suitable for industrial environments with poor conditions, including water splashes, dust, and certain corrosive gases.
