IP (ingress protection) Rating
First Number
Meaning
Second Number
Meaning
Refers to protection against solids
Refers to protection against liquids
0
No protection
0
No protection
1
Protected against solid objects over 50mm (e.g. accidental touch by the hand)
1
Protected against water falling vertically
2
Protected against solid objects over 12mm (e.g. accidental touch by the finger)
2
Protected against direct sprays from up to 15 degrees from vertical
3
Protected against solid objects over 2.5mm […]