Troubleshooting & Advice
What IP Rating Do Outdoor Sockets Need?
Outdoor sockets should be at least IP66 for UK weather, and must be RCD-protected. Here is what the rating means.
By Steels Electrical · 4 June 2026 · 3 min read
The short answer
An outdoor socket in the UK should have an IP rating of at least IP66 — fully protected against dust and against powerful water jets — to cope with British weather. Some weatherproof units are IP66/IP67 with the lid closed. Whatever the rating, an outdoor socket must also be RCD-protected. The IP number tells you about water and dust ingress; the RCD protects against shock.
IP ratings look cryptic but are simple once you know the code. For outdoor sockets exposed to Manchester weather, you want a high rating — and protection beyond just the IP number.
What the IP numbers mean
IP stands for Ingress Protection. The first digit is protection against solids (dust); the second is protection against water — higher is better. For example, IP66 means fully dust-tight and protected against powerful water jets. For outdoor sockets, aim for IP66 or higher.
Rating is not the whole story
A high IP rating keeps water and dust out, but it does not protect you from electric shock. Any outdoor socket also needs RCD protection, which cuts the power fast if there is a fault — essential outdoors where the shock risk is higher. We cover fitting one in our guide on the cost to install an outdoor socket.
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