The steps to install a small distribution box include selecting a suitable location, installing the base, placing the distribution box, connecting the wires, and checking for acceptance. Warm reminder: Do not disassemble or modify without experience and professionals. Select. In this guide, we'll break down everything you need to know to install a distribution box correctly and confidently. Choose the right box based on environment (indoor/outdoor), load capacity, and durability. A distribution box, also known as a. The installation requirements and specifications of Distribution box involve many aspects, including site selection, fixing method, wiring specifications and safety protection.