Split load consumer units. If in doubt contact a qualified competent person.
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Diy Wiring A Consumer Unit And Installation Distribution
Split load consumer unit wiring diagram. An installer will have to answer the question about which circuit should be connected to which particular bank of mcbs under the control of an rcd and which circuit would be best provided with. These are usually simply smaller consumer units. For this reason split way consumer units are preferred. Including building regulations and wiring regulations bs7671. A split load board is designed for total safety and incorporates an rcd residual current device shown as e in the picture above as well as the double pole switch d. Some properties will have separate consumer units for their garages sheds or any other exterior buildings.
If a split load unit is not required go to section 6. Consumer units that are fully rcd protected are available but could be dangerous if the rcd trips for a fault or a nuisance trip it will cause the electricity to all the circuits to be isolated. A split load board is supplied with a main switch and rcd with the mcbs on the rcd side and the rcbos on the main switch side. This means that the lights will go out and you could be plunged into total darkness. The consumer unit and associated components have been type tested to the following specifications. Consumer unit bsen61439 3.
Shown in the consumer unit casing above it is a metal pressed bar to which the mcbs clip. Find out how to wire rcds in split consumer unit. More electrical tips and diagrams wwwaboutelectricitycouk like subscribe and dont skip the ads shopping list. Garageshed consumer unit. They simply push on via a spring loaded lock at their back. Split load consumer units are new beasts as they are not directly drop in replacements for old school fuse boxes like single load consumer units are.
Gallery of Split Load Consumer Unit Wiring Diagram
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