What do the numbers stand for in the IP ratings? NEMA ratings?


#1

Ingress Protection (IP)
1st Digit: Solid Particle Protection
0 Not protected
1 Protected against solid objects greater than 50mm
2 Protected against solid objects greater than 12mm
3 Protected against solid objects greater than 2.5mm
4 Protected against solid objects greater than 1.0mm
5 Dust Protected
6 Dust tight

2nd Digit: Liquid Ingress Protection
0 Non protected
1 Protected against dripping water
2 Protected against dripping water when tilted up to 15 degrees
3 Protected against spraying water
4 Protected against splashing water
5 Protected against water jets
6 Protected against powerful water jets
6K Protected against powerful waterjets with increased pressure
7 Protected against the effects of submersion up to 1 m
8 Protected against submersion of 1 m or more
9K Protected against powerful high temperature water jets

IP Rating = NEMA Enclosure
IP20 = 1
IP22 = 2
IP24 = 3R, 3RX
IP53 = 5
IP54 = 12, 12K, 13
IP55 = 3, 3X, 3S, 3SX
IP66 = 4, 4X
IP67 = 6
IP68 = 6P

Both IP and NEMA are broke down in this link: https://en.wikipedia.org/wiki/IP_Code


What does the switch feature Process Sealed mean?