Step-by-step instructions on how to install the Polylok 12" distribution or drainage box. Choose the right box based on environment (indoor/outdoor), load capacity, and durability. Check for proper IP/NEMA ratings and material quality. Ensure safe placement: install in. The installation of a distribution box is explored in detail, highlighting advanced techniques for achieving a professional and efficient setup. This video provides valuable insights for anyon. In this comprehensive guide, we'll cover everything you need to know about distribution box installation, from the basics to the step-by-step installation process, safety tips, and the benefits of. A bus connector makes a mechanical and electrical connection between a vertical bus bar and its corresponding horizontal bus bar. Compression lugs provided on this switchboard accept properly sized incoming power cables.