Specifications
Chapter 14: Appendices
Appendix 10: NEMA/IP Enclosure Types
(12/99) 14-27
Table 14-20 provides a brief description of the IP Code elements. Full details are
specified in the clauses listed in the last column.
Element Numerals
or Letters
Meaning for the Protection of
Equipment
Meaning for the Protection of
Persons
Reference
Code Letters IP — — —
First characteristic
numeral
0
1
2
3
4
5
6
Protection against ingress of solid
foreign objects:
•
(not protected)
•
> 50 mm diameter
•
> 12.5 mm diameter
•
> 2.5 mm diameter
•
> 1.0 mm diameter
•
dust protected
•
dust tight
Protection against access to
hazardous parts with:
•
(not protected)
•
back of hand
•
finger
•
tool
•
wire
•
wire
•
wire
Cl. 5
Second
characteristic
numeral
0
1
2
3
4
5
6
7
8
Protection against ingress of water
with harmful effects:
•
(not protected)
•
vertically dripping
•
dripping (15° tilted)
•
spraying
•
splashing
•
jetting
•
powerful jetting
•
temporary immersion
•
continuous immersion
—Cl. 6
Additional letter
(optional)
A
B
C
D
—
Protection against access to
hazardous parts with:
•
back of hand
•
finger
•
tool
•
wire
Cl. 7
Supplementary letter
(optional)
H
M
S
W
Supplementary information specific to:
•
high-voltage apparatus
•
motion during water test
•
stationary during water test
•
weather conditions
—Cl. 8
Table 14-20: Elements of the IP Code