International norm IEC EN 60529 classifies and rates the degree of protection provided by enclosures for electrical devices.
The structure of the IP code indicates the degree of protection as follows:
- Degree of protection against access to hazardous parts within the enclosure
- Degree of protection against access solid foreign objects penetrating the enclosure
- Degree of protection against ingress of water within the enclosure
Expanded mesh that complies with:
IP 10: SQ80 DL 80 x DC 56 - av 6.2 x sp 3 mm
IP 20: Q20 DL 20 x DC 13 - av 1.5 x sp 1.5 mm
IP 30: Q5 DL 5.0 x DC 4.0 - av 0.8 x sp 0.8 mm
IP 40: E4 DL 4.0 x DC 3.0 - av 0.65 x sp 0.80 mm
(av = strand width; sp = strand thickness)
IP SAFETY FACTOR BROCHURE