What is a dual consumer unit?

What is a dual consumer unit?

A ‘Dual RCD Consumer Unit’ is supplied with the main switch and two RCDs and offers a cheaper solution. You should not, for example put all the lighting circuits on the same RCD as an earth leakage fault on one of those circuits will cut power to the whole bank, leaving you without any lighting.

Can I have 2 consumer units?

Yes you can fit second consumer unit common when supplying showers and sheds you may have to use two lighting circuits as most light fitting need fusing to 6 amp. There are three ways to connect with henley block or from existing consumer unit and latter with approved cable or twin and earth.

What is the difference between an RCBO and RCD?

RCD Vs. RCBO: What is the Difference? RCDs can protect against electric shocks, residual currents, and earth faults. On the other hand, RCBOs can do what RCDs can do and protect a circuit from short circuits and overload.

Can I install my own consumer unit?

Can I Change My Own Consumer Unit? This is not a DIY job. Unless you are a qualified electrician, then you should not try to replace your own consumer unit. It is a legal requirement that this type of electrical work is carried out by a certified professional.

Can I use an RCBO instead of an RCD?

However, you can meet these specifications and save space on the circuit breaker panel: on some circuits, you can replace two devices (RCD and circuit breaker) with a single device (RCBO). This will protect these circuits against current leaks and overloads at the same time.

Can I daisy chain consumer units?

Daisy chaining is fine as long as the protection is set correctly. Mine runs straight from the house consumer unit on a 40A MCB to the (detached) garage.

What does a Henley block do?

To split the meter tails a Henley Block is used. A double Pole is more awkward to wire up because you have one connector block sitting behind the other. Convention is to have the Live at the back and neutral at the front so the live is not exposed when you remove the front cover.

What is a Henley block?

Used in low voltage electrical engineering, Henley blocks are used to connect the incoming mains between an electricity meter and consumer units — featuring knockout entries and sealable security functionality.

Can I fit RCBO in a RCD consumer unit?

Yes but you could also install 30mA RCBO on the house socket circuit.

Can you mix MCB and RCBO?

Yes, but only if there is not already an 30mA RCD covering the section of busbar you are mixing them on, ie dual RCD or split load board. On a main switch only board mix and match as you wish.