Ip Ratings - Danfoss VLT Pocket Manual

IP ratings

IEC 60529 specifi es protection ratings for enclosures.
The fi rst number describes the protection against solid objects, the
second number describes the level of protection against entry of
liquids. Example IP 20 is highlighted below.
IP Solids
0 No protection
Protected against solid objects
1 greater than 50 mm (e.g.
accidental touching by hand).
Protected against solid objects
2
greater than 12 mm (e.g. fi ngers).
Protected against solid objects
3 greater than 2.5 mm
(e.g. tools or wires)
Protected against solid objects
4 greater than 1 mm
(e.g. tools and small wires).
Limited protection against dust
5 (some ingress but no harmful
deposit).
6 Complete protection against dust.
7
8
Examples
• MCD200-007 ~ MCD200-055 is IP 20
• MCD200-075 ~ MCD200-110 is IP 00
• MCD3007 ~ MCD3132 is IP 21
• MCD3185 ~ MCD3800 is IP 20
• Please refer to IEC 60529, 1989 + A1 1999
Liquids
No protection.
Protected against vertically falling
drops of water (e.g. condensation).
Protected against direct sprays of
water up to 15° from vertical.
Protected against sprays of water up
to 60° from vertical.
Limited protection against water
sprayed from all directions (limited
ingress permitted).
Limited protection against low pres-
sure jets of water from all directions
(limited ingress permitted).
Protected against strong jets of
water (limited ingress permitted).
Protected against the eff ects of
immersion in water between 15 cm
and 100 cm.
Protected against extended
immersion in water under pressure.
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VLT Soft Starter Pocket Guide 23