RCBO's

RCBOs for Consumer Units and Distribution Boards

Why RCBOs

An RCBO combines the job of an MCB and an RCD in one device, so each circuit has its own residual current protection. If one circuit trips, the rest of the house or building stays on, which is why many electricians now build boards with an RCBO on every way. It makes fault finding easier and keeps clients happier. An RCBO board also makes life simpler for the client, because a fault on one circuit is obvious from which device has tripped. That makes call outs quicker and cuts the time spent hunting for the problem. For new boards and rewires, it is now a common approach across domestic work.

Choosing the right one

Match the brand to the board first, then pick the curve and current rating to suit the circuit. The ABB DSE201 range covers Type B and Type C curves with Type A residual current protection at 30mA across a spread of ratings. Hager single and three phase RCBOs, Wylex and Niglon devices are also in the range. Check each listing for the exact specification before you order. Three phase RCBOs from Hager are available for commercial boards. As with MCBs, stick with the board manufacturer's own devices so they fit and work as intended.

Enough for a full board

An RCBO board needs a lot of devices in one go. This page shows live stock from the Moss Electrical counter in Bridgend, so you can check quantities before booking a board change. We have supplied electricians since 1992. Call 01656 765300 if you need more than shown. If the full number of ways is not available, the team can tell you about alternatives in the same range. Check the board brand first so you are comparing like for like, and keep a couple of common ratings in the van for future call outs.