Product details
Ring 12N 7-pin plastic trailer socket with rear fog cut-out
Need a simple, dependable way to hook up trailer lights to your towing vehicle? This Ring 12N 7-pin plastic trailer socket with a built-in rear fog cut-out does exactly that. It’s a compact, rugged bit of kit from Ring Automotive designed to keep your lighting neat, legal and hassle-free on the road.
Quick overview
This socket is for standard 12N 7-pin electrics — the common seven‑pin wiring used for trailer road lights. The handy rear fog cut-out stops the trailer from energising a fog lamp when it shouldn’t, which is a proper bonus in wet, murky British weather. Ideal for caravans, small trailers or equipment trailers where a tidy, reliable electrical connection matters.
- Provides a solid connection between trailer and towing vehicle, cutting down flicker and poor contacts.
- Rear fog cut-out prevents accidental fog lamp activation on the trailer — useful in low visibility.
- Lightweight plastic body (approx. 84 g) resists corrosion and keeps weight to a minimum.
- From Ring Automotive, so the part and specs are industry familiar and easy to source.
- Compact design and straightforward wiring make installation quick for competent DIYers or fitters.
Technical details and compatibility
Some practical facts: this is a 12N 7‑pin socket (model A0012, manufacturer part number A0012), rear-mounted. Package dimensions are roughly 14.6 x 12 x 6.2 cm and the unit weighs about 84 g. It’s made for standard 12N circuits found on many trailers and towing vehicles. If your setup uses a 13‑pin connector you’ll need an adapter — this socket won’t replace a 13‑pin system by itself.
Installation is usually straightforward, but a few pointers help: make sure the vehicle wiring is clean and the earth is solid, use the correct wire gauge for tail and indicator circuits, and test all the lights before you set off. Those checks save a lot of faff on long trips or in rubbish weather — nobody wants surprises at the lights.
Why choose this socket?
Pick this Ring 12N socket when you want a no-nonsense electrical link between trailer and vehicle. It’s practical, easy to fit and the rear fog cut-out is a thoughtful safety touch many people overlook. No more faffing about with corroded pins or dodgy connections — just plug in and go, knowing the electrics are tidy and compliant.
If you’re unsure about compatibility with a particular vehicle or trailer, check the wiring type first or have a quick word with an auto‑electrician. And bear in mind this is an electrical accessory only — towing capacity is down to the towbar and vehicle, not the socket. All in all, a small, handy part that keeps trailer lights behaving as they should.




