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NM series lighting boxes, conforming to the Standard of JB/T7212-93 Modular Termination Electrical Combination, are widely in such fields as power plants, petroleum industry, coal industry, chemical engineering, metallurgy, machinery, mine industry, light industry and other outdoor and indoor applications. They have overload, short circuit, and power leakage protection function for the AC current 50Hz, rated voltage 380V/220V 3P+E+N and 1P+E+N lighting systems with power distribution and infrequent connecting and breaking. The structure of the products has two types, wall-mounted model and flush-mounted model. The highest protection grade is IP65. There are transparent operating windows on the box. It’s operable when the door is closed.
Lighting box equipped with transparent visual operation window, operability and high protection performance coexist, do not open the door to operate the circuit breaker switch state and observation, and protection grade is not reduced, from IP44 to IP66 range. After installation of rainproof brim, can be directly used in outdoor environment. The material is divided into plate or plastic material, the install into with the wall or dark wall