I am doing a solar install and need to connect a single phase consumer unit to an existing 3 phase unit, do i need to split L1 before the 3 phase unit and feed a hendy block or can i just co from a 16a rcd to new unit ?

Cheers

If your asking this question then i am guessing your not MCS accredited and trained to install this tyoe of PV equipment.
Any warranty from the manafacturers will be null and void and theres a good chance you will do more harm than good .

Get a qualified installer to assist you and sign off the job, it may cost more in the long run but you will be able to sleep at night .

Nick

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If it isnt broke dont bloody touch it until it bloody well is and if it is broke then make drawing of the connections before you remove the broken one and replace with a new one LoL

You also won't get the FITs rate either......may as well burn your cash!

BG

HI
if the system is to be a stand alone ( battery energy storage) then he has no concern over the feed in tarrif !
but if your using a three phase system you only need to add one pv array to each phase! the 16a can be added to the consumer unit for the feed in tarrif to be accepted. But the guy's are right, the installer has to be and has to use MCS accredited euipment

Im MCS accredited, Just run the PV board from a 16A mcb in the three phase board. I guess you are MCS accredited but not a electrical based company.