The European 230v wiring diagram typically consists of several components, including the main power supply, distribution board or consumer unit, circuit breakers, and various types of wiring such as live, neutral, and earth wires. Witness the precise and professional wiring techniques of German experts as they connect distribution boxes. Marvel at their skilled use of tools like hydrauli. more Witness the. In the USA the two commonly supplied shore-power voltages are 120 Volts (60Hz) AC and 240 Volts (60Hz) AC. The standard in Europe is 230 Volts (50Hz) AC. All of these supplies are single phase, but there are differences in the supply wire configurations and consequently in the power distribution. When it comes to electrical wiring, understanding the basics is crucial for all homeowners and professionals alike. It takes the incoming power and safely distributes it to different circuits throughout your building. However, the key to. A consumer unit (CU) also known as panel box, breaker box or fuse box is a type of a distribution board (aka electric panel, breaker panel, panelboard or main breaker-box or main service panel) which is used to distribute and fed the electric power to the sub-circuits and final sub-circuits. European wiring diagrams can vary slightly from country to country, but they typically feature either a schematic or pictorial representation of how the wiring should look.