IP Ratings Explained


Bathroom Zones and IP ratings, what do they mean?

IP rating stands for 'Ingress Protection' and is always followed by two characters. The two numbers refer to level of protection offered, and it is important that you choose light fittings with the correct IP rating according to where they are going to be sited within your bathroom. Please see the diagram to work out the different zones in your bathroom. If unsure please check with a qualified electrician before installing.


Bathroom Zone 0 - the interior of the bath or shower that can hold water. Requires lighting fittings to have an IP68 rating.

Bathroom Zone 1 - the area directly above zone 0, limited to a height of 2.25m above the bath or shower. Requires light fittings to have an IP65 rating or better.

Bathroom Zone 2 - the area beyond zones 0 and 1, stretching 0.6m horizontally and up to 2.25m vertically. Also includes the recessed area of a window with a sill next to the bath. Requires light fittings to have an IP44 rating or better.

Not Zoned (was Bathroom Zone 3) - the area beyond zone 2, stretching 2.4m horizontally and up to 2.25m vertically, used to be rated as Zone 3 but this is now not separated and any lighting fitting can go in this area. There is not a specified IP number for this area, although some products are marked as not for bathroom use. SELV or shaver units are permitted, all other portable electrical equipment is not.