Ask a tradesman
Electrical
Reducing 8.5mm red & black single core into 6mm
I am running 8.5mm cables from MC4 connectors (ending at 4x100w flexi solar panels) back to the Victron MPPT controller. As I understand it, the terminals require 6mm for the purposes of correct fitting. Therefore, what do I need to bridge that 8.5mm into 6mm? I heard the mention of 'tails', but what does this mean? Please enlighten me.
4 Answers from MyBuilder Electricians
Best Answer
Grimsby • Member since 13 Jan 2015 • 68 jobs, 100% positive feedback
Personally I have never heard of 8.5 mm cables. 6mm and 10mm yes. Also, by the nature of your question( with all due respect) I would get someone with the right credentials to do it for you.
Answered 4th Jul 2019
Redditch • Member since 12 Apr 2019 • 8 jobs, 88% positive feedback
I've installed Solar Panels for a number of years now, 4/6mm strings from the invertor will be fine. Having 4 panels, one set of strings (+ & -) will do.
Answered 5th Jul 2019
Blackburn • Member since 20 Jun 2019 • 96 jobs, 100% positive feedback
I'm not specializes in solar panels . However it's all to do what's sort of load going to go through them actual lenght of them and other factors had to be taking in to consideration to work out csa of yours wires , strings or tails . Never heard about 8. 5 mm .
Regards
Answered 11th Jul 2019
Shropshire • Member since 2 Jan 2018 • 25 jobs, 100% positive feedback
Agreed with the other answers. My guess is that the OP has measured the diameter of the cables to get to the 8.5mm, instead of knowing the cables CSA. As stated, I’d get someone qualified to do this job and ensure everything is fine.
Answered 18th Jul 2019
Related Questions
-
Switchgear replacement...millions of wires.
I have two problems: 1. I am replacing a single landing switch. This landing light can be switched on or off from the...
-
Oven 6mm cable to single socket
Hi We are replacing our oven and the new oven comes with a 13a plug connected to it. The old oven was hard wired in with a 6mm...
-
Two black one brown(live) what's going on with the second black ?
I am trying to install downighters in the bathroom . after opening up the ceiling rose I have 1 brown wire going through a...
-
3 black wires in ceiling rose, which is L and N?
2 part question Replacing front room light. I didn't notice until I went to put up new light that there are 3 black wires - 2...

Post your job to find high quality tradesmen and get free quotes
Question Categories
- All Questions
- Architectural Services
- Bathroom Fitting
- Bricklaying
- Carpentry & Joinery
- Carpet & Lino
- Central Heating
- Chimneys & Fireplaces
- Conservatories
- Conversions - General
- Damp Proofing
- Demolition & Waste Clearance
- Driveways
- Electrical
- Extensions
- Fascias, Soffits & Guttering
- Fencing
- Gas Work
- Groundwork & Foundations
- Handyman
- Hard Flooring
- Insulation
- Kitchen Fitting
- Landscape Gardening
- Locksmiths
- Loft Conversions
- New Builds
- Painting & Decorating
- Plastering
- Plumbing
- Restoration & Refurbishment
- Roofing
- Security Systems
- Stonemasonry
- Tiling
- Tree Surgery
- Windows