The inlet of the distribution box should be located in the box
Distribution boxes are typically made of reinforced concrete with plumbing "knock outs" into the box. The inlet must be higher than the outlets, with all outlets at the same level. It takes the incoming power and safely distributes it to different circuits throughout your building. The design of a distribution box is relatively straightforward, but its functionality is critical. If they need to be placed outdoors, especially in high humidity, you must ensure their waterproofness.
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