I’m looking to have an ET112 installed on my incoming mains and i’m trying to ensure I have all of the relevant information before approaching an electrician to do the install.
Due to location, i’d be looking to have the ET112 installed inside the meter box and fitted after the main isolator. I am however slightly confused by the requirement to fuse the neutral and the best way to go about doing that.
My initial thought is to fit a 3 way DIN rail enclosure, install the Live in/out and then in the spare way install a Lawson 32A MSC Modular Fuse Holder along with a 315mA fuse and run that back to a suitable henley block with something like 2.5mm cable.
Am I over thinking this, or is this the best way to install? I can’t fit the unit anywhere else nor in the main consumer unit without an expensive rewire which i’d like to avoid.
Gear in the meter box seems to be a big topic and if you go by what the DNO says it’s a no no! I would look at housing all of it in one location to be honest if you can get a second small CU and house it in there.
I don’t have anywhere else to fit it due to the location of my meter, the CU and the length of my meter tails - I couldn’t even pull new longer tails through as it’s not a straight path.
Was thinking it could be Henley’ed near to the CU then then tails in and out of the New CU to the old CU but in any case it should be double insulated tails so ideally all connections be in a unit/CU does that help but your spark should be able to figure this out as this is there bread and butter job