|
IEC
(INTERNATIONAL ELECTROTECHNICAL COMMISSION) ENCLOSURE RATINGS*
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|
1st
I.P. Digit
|
Designation
|
Explanation
|
2nd
I.P. Digit
|
Designation
|
Explanation
|
|
0
|
No
protection.
|
No
protection of personnel from direct contact with active or moving
parts. No protection from access of solid foreign object. |
0
|
No
protection.
|
No
special protection. |
|
1
|
Protection
against large foreign bodies.
|
Protection
of personnel from accidental large area direct contact with active
or internal moving parts (hand contact etc.) but no guard against
intentional access to such parts. Protection from access of solid
foreign object larger than 50 mm in diameter. |
1
|
Protection
against water dripping vertically.
|
Water
drops falling vertically must not have any harmful effect. |
|
2
|
Protection
against medium foreign bodies.
|
Protection
of personnel from finger contact with active or internal moving parts.
Protection from access of solid foreign object larger than 12 mm in
diameter. |
2
|
Protection
against water dripping off vertically.
|
Water
drops falling at any angle up to 15 degrees from the vertical must
not have any harmful effect. |
|
3
|
Protection
against small foreign bodies.
|
Protection
of personnel from touching active or internal moving parts with tools,
wires or similar foreign objects thicker than 2.5 mm. Protection from
access of solid foreign matter larger than 2.5 mm in diameter. |
3
|
Protection
against spray water.
|
Water
hitting the object at any angle up to 60 degrees with the vertical
must not have any harmful effect. |
|
4
|
Protection
against granular foreign bodies.
|
Protection
of personnel from touching active or internal moving parts with tools,
wires or similar foreign objects thicker than 1 mm. |
4
|
Protection
against splash water.
|
Water
splashing against the object from all directions must not have any
harmful effect. |
|
5
|
Protection
from deposit of dust.
|
Total
protection of personnel from touching voltage carrying or internal
moving parts. Protection from harmful deposit of dust. |
5
|
Protection
against jet water.
|
A
jet of water nozzled from all directions must not have any harmful
effect. |
|
6
|
Protection
from access of dust.
|
Total
protection of personnel from touching voltage carrying or internal
moving parts. Protection from access of dust. |
6
|
Protection
against flooding.
|
Water
from a temporary flooding, such as heavy seas, must not enter in any
harmful quantity. |
|
-
|
|
|
7
|
Protection
in dipped state.
|
If
the object is dipped into water under the defined conditions of pressure
and time, water must not enter it in any harmful quantity. |
|
-
|
|
|
8
|
Protection
in submerged state.
|
If
the object is submerged in water, water must not enter in any harmful
quantity. |
| *
Use this table for preliminary reference only. Please do not rely
upon this information. Contact the IEC for complete information regarding
these ratings. |
