The first level is inside the distribution room, generally:0.8mX0.6mX2.2m (length, width and height), the second level is generally a sub-distribution box, depending on how many sub-circuits you have, generally 1mX1.2m, three-level distribution is the switch box, generally 500mmX600mm.

Distribution box is a sea of data on the parameter, generally constitutes the low-voltage Lin according to the electrical wiring. Requirements for switchgear, measuring instruments, protective appliances and auxiliary equipment assembled in a closed or semi-closed metal cabinet or screen width, constituting a low-voltage distribution box. Normal operation with the help of manual or automatic switch to connect or break the circuit.

Distribution box has a small size, easy to install, special technical performance, fixed location, unique configuration features, not subject to site restrictions, the application is more common, stable and reliable operation, high space utilization, occupies an area of less and has the characteristics of the environmental effect.