Power Distribution BoxThe distribution cabinet is suitable for single-phase two-wire, three-phase three wire, and three-phase four wire power, lighting, and motor control circuit protection devices with AC frequency of 50Hz~60Hz, rated working voltage of 500V and below, and rated current up to 100A. It is used as a power distribution device for industrial and civil buildings, industrial and mining enterprise buildings, high-rise buildings, stations, hospitals, residential buildings, and other modern buildings. Model and its meaning Normal working conditions and installation conditions 1. Temperature: The ambient air temperature does not exceed+40. C， The lower limit of ambient air temperature is -5. C; 2、 Humidity: The maximum temperature is+40. At C, the relative air

Humidity not exceeding 50%; Higher relative humidity can be allowed at lower temperatures, such as+20. At C, it reaches 90%; 3. Altitude: The altitude of the installation site shall not exceed 2000m; 4. Installation category: Class II; 5. Pollution level; Level 3; 6. Protection level; IP55。

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