Distribution boxes can be classified in different ways depending on the installation environment, enclosure material, and mounting method. In practical projects, these categories are often used together rather than treated as a single flat list. Check for proper IP/NEMA ratings and material quality. Ensure safe placement: install in dry, accessible areas with good ventilation and at appropriate height (typically ~1. Each element plays a specific role in ensuring safe electrical distribution. Concealed. In this guide, we'll break down the 12 main types of distribution boxes in a way that's easy to understand.