RCDs, MCBs & Mains Consumer Units

At the heart of any 240V system is the consumer unit, which houses key safety devices such as RCDs (Residual Current Devices) and MCBs (Miniature Circuit Breakers). These components work together to protect both your electrical system and the people using it. An RCD monitors electrical flow and instantly cuts power if a fault or leakage is detected, helping prevent electric shock, while MCBs protect individual circuits from overload and short circuits.

The Wired Campers collection includes a wide range of consumer units and components to suit different builds, from compact IP65 weatherproof enclosures to more advanced modular systems. You’ll also find trusted brands such as CBE, Lewden and CHINT, offering reliable, high-quality protection devices commonly used in camper van and motorhome installations.

Consumer units are typically installed as part of a 240V hook up system, acting as the central hub for distributing mains power throughout your camper van. They connect to inlet sockets and supply power to internal sockets, battery chargers and appliances such as kettles, laptops and chargers. Many units include double pole protection, ensuring both live and neutral connections are safely isolated—an important feature in mobile electrical systems.