IP Rating or Ingress Protection Rating
IP Rating also known as IP Code, International Protection Marking, IEC standard 60529, Ingress Protection Marking.
This classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures.
PDF Download: Ingress Protection Rating – IP Rating
Ingress Protection, First Digit: Solids
0 No protection
1 Protected from Touch by Hands greater than 50mm
2 Protected from Touch by Fingers greater than 12mm
3 Protected from Tools and Wires greater than 2.5mm
4 Protected from Tools and small Wires greater than 1mm
5 Protected from Limited Dust Ingress
6 Protected from Total Dust Ingress
Ingress Protection, Second Digit: Liquids
0 No protection
1 Protected from Condensation
2 Protected from Water Spray less than 15 degrees from vertical
3 Protected from Water Spray less than 60 degrees from vertical
4 Protected from Water Spray from any direction
5 Protected from low pressure water jets from any direction
6 Protected from high pressure water jets from any direction
7 Protected from immersion between 15cm and 1m in depth
8 Protects from long term immersion up to a specified pressure
IP ratings – Weatherproof and waterproof
A ‘waterproof’ or ‘weatherproof rating is one of the most popular. Everyday products, from mobile phones and speakers to kitchen and bathroom fixtures, also lighting, CCTV enclosures.
The ratings widely used as waterproof for general purposes are IP65, IP66 and IP67.
However, one common misconception regarding weatherproofing is that items intended for prolonged outdoor use require the highest numerical IP ratings for moisture resistance.
This isn’t always the case since most rainwater – even in windy conditions – tends to fall relatively close to vertical, and under very low pressure.
An IPX2 rating should protect against dripping water equivalent to 3 mm rainfall per minute at angles up to 15°, while IPX3 indicates resistance to continuous spray at up to 60° from vertical.