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 dry, accessible areas with good ventilation and at appropriate height (typically ~1. Practice good wiring: secure. Electrical panel boxes, aka breaker boxes, can be on a wall in an out-of-the-way area of your home. Electrical panels. Whether you are an electrical contractor or a construction brigade, knowing how to properly and safely install distribution boxes is the basis of ensuring the safe operation of the entire system. It acts as the central hub for distributing electricity from the main power line to various circuits in your home or business.