Split load consumer unit layout

Because of this it actually contravenes the most recent (16th Edition) wiring regulations. Consumer Unit Arrangements Option 5. Under the 17th Edition requirements it is still possible to install some circuits in domestic premises that are not fed via an RCD. Split Load Twin RCCB plus unprotected circuit.

Different wiring systems would need to be used.

The cost of installation could rise .

Several new Regulations will have an impact upon circuit design and consumer unit layout.

Now consider the consumer unit arrangement in Fig. RCBOs (residual current circuit breaker with overcurrent protection). A dual RCD split load board will meet the 17th Edition requirements for the following: Socket outlets for general use in domestic installations must have the additional protection of an RCD not exceeding 30mA. They usually offer significant advantages over the traditional unsplit CU type.

Generally a split load arrangement is used with some circuits protected by the RCD and others not. The box pictured top-right is a Wylex standard fitted with rewirable fuses. These boxes can also be fitted with cartridge fuses or miniature circuit breakers (MCBs). This type of consumer unit was very popular in Britain until . Find out how to wire RCDs in split consumer unit. Main switch plus the use of RCBOs for every circuit.

But wiring space increased where required most. Wiring Regulations, including Full Metal non-combustible enclosures for. PV All Metal Micro Generation Units 7. Full metal Main Switch unit with RCBOs. Multiple extra large knockouts for easy i. In most residential installations the biggest challenges are with the selection of the correct consumer unit.

SPLIT LOAD UNITS 100A SWITCH 80A 30mA RCCB. Take, for instance, the introduction of the 17th edition wiring regulations and the implications they had with Electrical Contractors, Designers and Consultants. As you may be aware there are changes being made to the . Design is the entry level board designed for all applications.

As with both models in the range, there is ample cable space available even when RCBOs are fitted. The top mounted terminal rail makes the wiring of the neutral and earth connections neat and simple.