A distribution box is a key part of electrical systems in buildings. Inside, you'll find parts like circuit breakers and fuses that protect the system from problems like overloads and short circuits. Key components of an electrical panel include the main circuit breaker, individual circuit breakers, and bus bars, all playing vital roles in. Bottom Line Up Front: Your home's distribution box (electrical panel) is typically located in the basement, garage, utility room, or mounted outside near your electrical meter. A house electrical panel diagram provides a visual. Electrical equipment used in residential premises are commonly certified by third party ensuring conformity with the relevant standards. In this case, equipment shows the certification Mark of the certification body such as VDE, NF, AENOR, IMQ or others. Mark of conformity is a voluntary.