Supply low voltage box changes

1, the scope of this series of products suitable for high-rise buildings, hotels, hospitals, schools, laboratories, residential, airport, railway stations, shopping malls, industrial and mining enterprises and other places for lighting and small power control circuit, as a circuit overload and short circuit protection line infrequent start with, and under normal conditions for use, but also for the the indoor power plug conversion. When used as a measuring box, the overall measurement can be divided into the road metering. The products distribution maximum rated current of 250A, the minimum rated current of 10A. 2, using the environment a) maximum ambient air temperature of +40 ° C, the average temperature must not exceed +35 ° C and within 24h. The lower limit of the ambient air temperature is -5 ° C; b) installation altitude does not exceed 2000m; c) ambient air relative humidity less than 90% (+25 ° C); d) no significant shake and shock and vibration. 3, products constitute the product described by the cabinet and the electrical components together to form electrical components including circuit breakers, earth leakage switch, isolating switch, power meter, fuses, sockets, connected to the terminal, copper busbar installation: Wall and embedded 4 main technical parameters Rated voltage: AC: 380V/220V Rated insulation voltage: AC: 660V rated current and short-time withstand current capacity 160A-6A/6kA shell protection grade: IP2XC