Between the main distribution box and the sub-distribution boxes
Primary Distribution Box: Serves as the main distribution box for a construction site or project (usually only one). The distribution box (DB box) helps safely and efficiently distribute electrical power. What is the main job of a distribution box? How do you choose the right distribution box for your home? Can you use a metal distribution box outside? What is the difference between a fuse box and a circuit breaker box? You can see many kinds of distribution boxes in homes, offices, and factories.
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