Solar Connectors Y Branch Parallel Adapter Cable
Sold by Renogy UK
From £16.99
Renogy UK's price when we last checked, on 2 September 2026. They run promotions and price by variant, so confirm the current price on their page before you buy.
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Happy to help you work out whether a part is right for your build: get in touch, or run the numbers through the free electrical calculator.
Overview
Solar Connectors Y Branch Parallel Adapter Cable
Y branch adapter cables rated 30A and 1500V DC, IP67 when mated. Available as a two-into-one or three-into-one pair — the properly specified version of a branch connector, with the datasheet to back it.
- MMF+FFM (two into one) or MMMF+FFFM (three into one)
- 30A rated current, 1500V DC (IEC)
- IP67 mated, IP2X unmated
- Contact resistance 0.5mΩ, tin-plated copper contacts
- −40°C to 90°C, PC insulation, UL94-HB/V0 flame class
- Suits 2.5mm², 4mm² and 6mm² single-core cable
The 30A rating is the useful number
Branch connectors are frequently sold without a current rating at all, which makes it impossible to know whether they suit your array. Thirty amps comfortably covers three 200W panels in parallel at 12V nominal, with margin. Contact resistance of 0.5 milliohms means the joint itself wastes almost nothing.
IP67 mated, IP2X unmated
Read that carefully: these are sealed once connected, and barely protected when they are not. An unmated connector left on a roof over winter will corrode. Cap or mate every connector before the van goes back outside.
Before you order
Check your cable falls in the 2.5–6mm² range. Parallel strings of three or more panels should each carry a fuse rated to the panel's maximum series fuse figure.
Renogy's published figures
Taken from Renogy's own specification for this product, on the date shown by the price. Anything wired into 230V mains should be signed off by a qualified electrician.
Build notes for this part
Get the sizing and fitting notes.
Useful product advice, installation considerations and occasional offers for this part of your van build.