What does an 'IP Rating' Mean?
As an international standard, IP Ratings describe the environmental protection that a product has from particles and liquids. Each IP rating consists of two numbers: the first refers to 'particulate' protection and the second to 'liquids'.
'6' = Dust tight. No ingress of Dust.
'5' = Protected against jets of water from any direction.
The diagram below gives full details of the current IP ratings.