As for the equipment inside, there are certain differences: the first level distribution cabinet generally has isolation switches, circuit breakers, leakage protectors, etc. A distribution box is a low-voltage electrical enclosure that receives incoming power and distributes it safely to multiple outgoing circuits through protective and switching devices such as MCBs, RCDs, RCBOs, fuses, isolators, busbars, neutral bars, earth bars, and surge protective devices. The. Inside the box, you'll find two rows of switches. Pro Tip: Heath Eastman, Ask This Old House electrician, advises that before removing a panel cover, you should always. 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. A distribution board (also known as panelboard, circuit breaker panel, breaker panel, circuit breaker, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit. A single phase distribution box is where you control electricity at home or work. It helps you handle the power and keeps you safe from electrical dangers.