190
Additional letter
The additional letter is used only if the actual protection of persons is higher than that
indicated by the first characteristic numeral of the IP code.
Additional letter
Protection
A
A Protected against access with back of hand
B
B Protected against access with a 12 mm diameter finger
C
C Protected against access with a 2.5 mm diameter tool
D
D Protected against access with a 1 mm diameter wire
If only the protection of persons is of interest, the two characteristic numerals are
replaced by the letter "X", e.g. IPXXB.
Illustration of the above explanations:
Protection against solid foreign objects
larger than 2.5 mm
No protection
Protected against access
with a 1 mm diameter wire
IP30D
Remarks
b
b
The degree of protection IP must always be read and understood numeral by
numeral and not as a whole.
For example, an IP31 wall-mount enclosure is suitable for an environment that
requires a minimum degree of protection IP21. However an IP30 wall-mount
enclosure is not suitable.
b
b
the degrees of protection indicated in this catalogue are valid for the enclosures as
presented. However, the indicated degree of protection is guaranteed only when
installation and device mounting are carried out in accordance with professional
standards that conserve the initial degree of protection.
IK code
Standard IEC 62262 defines an IK code characterising the capacity of products to
resist mechanical impacts from all sides.
IK code
Impact energy (joules)
01
0.14
02
0.2
03
0.35
04
0.5
05
0.7
06
1
07
2
08
5
09
10
10
20
IK codes can be selected according to the risks of impacts on a given site.
Site
Recommended IK
No risk of major impact
Technical premises
07
Significant risk of impact that
can damage devices
Hallways
08 (switchboard with door)
Maximum risk of impact that
can damage the switchboard
Workshops
10
Standards
Additional information
Standards