Technical Information for Industrial Enclosures

Pictograms

Protection rating (IP code) in
accordance with DIN EN 60529
(VDE 0470-1)

Level of protection (IK code) against
mechanical impact in accordance with
DIN EN 50102 (VDE 0470-100)

Protection class II
Equipment with protective insulation
in accordance with DIN VDE 0100-410

Rated voltage For use in AC voltage
systems, maximum permissible nominal
voltage of the electrical system

Maximum voltage DC (DC voltage)
as per product standard 
(system voltage in the PV sector)

c UL us 
(Underwriters Laboratories)
approved (American and
Canadian approval)

DNV-GL
The approved products are from the DNV
for installation on all classified ships

DLG focus test
for special innovations in machines and
technical products - predominantly in
agriculture and forestry applications

Halogen-free enclosure,
without halogens such as fluorine, chlorine
and bromine

Betriebsmittel der Schutzklasse I
nach EN 61140 (VDE 140-1)

Overview about the ambient conditions and mechanical properties of the els-products

 Ambient temperatureMax. relative humidity
 min.max.average over 24 hat 40°Cat 25°C (short-term)Protection rating according to DIN EN 60529 / VDE 0470-11)Shock-proof as per DIN EN 50102 / DE 0470 Teil 100
TK PS (polystyrene)
enclosure system
-25°C40°C35°C50%95%IP66IK07
TK PC (polycarbonate)
enclosure system
-35°C80°C60°C50%95%IP66IK08
TG ABS
empty enclosure
-25°C40°C35°C50%95%IP66/IP67IK07
TG PC (polycarbonate)
enclosure system
-35°C80°C60°C50%95%IP66/IP67IK08
AKL
empty enclosure
-25°C40°C35°C50%95%IP65IK07
AKI
empty enclosure
-35°C80°C60°C50%95%IP65IK08
AL / ALS
aluminium enclosure
-35°C75°C60°C50%95%IP66IK09

Additional note: The specified temperatures may be limited by the installed devices.

1) When used with suitable connectors or cable glands.

Overview of the properties of the materials used in els installation systems

MaterialUsed in the products:

Weak acids

Weak acids

Weak alkalis

Strong alkalis

Alcohol

Petrol

Benzene

Mineral oil

Diesel

Amonia, gaseous
(DLG Focus Test)

Vegetable fats

Animal fats

Halogen-free

Heavy metal-
PVC- und silicon-free

Combustion behaviour in accordance with 
DIN EN 60695
(VDE 0471) / UL94

Polystyrene,
Impact proof

TK PS

AKL

o

ø

o

o

o

x

x

o

x

k.A.

o

x

ja

ja

650°C / HB

Polycarbonate,
glass-fibre reinforced

TK PC

AKI-L

o

x

x

x

o

ø

x

o

ø

o

o

ø

ja

ja

960°C / V-2 (5VA*)

Polycarbonate,
transparent

Cover TK PS / TK PC

Cover TG-ABS / TG-PC

Cover AKL / AKI-L

o

x

x

x

ø

ø

x

o

ø

o

o

o

ja

ja

850°C / V-2

ABS (Acrylnitrile-
Butadiene-Styrene)

TG ABS

o

ø

o

o

o

x

x

o

o

k.A.

ø

ø

ja

ja

650°C / HB

Polycarbonate

TG PC

o

x

x

x

o

ø

x

o

ø

o

o

ø

ja

ja

960°C / V-2 (5VA*)

Polyamid 6, glass-fibre reinforced

Cover srews

x

x

o

o

o

o

ø

o

o

o

o

o

ja

ja

750°C / HB/V-2

Aluminium

AL, ALS

o

ø

o

o

o

o

o

o

o

k.A.

o

o

ja

ja

--

o = resistant  /  ø = partially resistant  /  x = not resistant

* 5-inch (127 mm) flame test in accordance with UL 746 C (comparable with the requirements in accordance with UL 94, 5VA)

The materials used by Spelsberg have been subjected to a weathering test in accordance with DIN 53 387 (superseded by DIN EN ISO 4892-2) and a
1000-hour test by the State Testing Office in Dortmund and passed. This material also passed the UV resistance test according to UL 746 C without any restrictions.

In principle, not only the level of protection but also the climatic conditions and the occurrence of chemical influences should be assessed when selecting
the installation site. Details of the material properties and chemical resistance of the materials used can be taken from the table though it should
be noted that they are only guide values.

Power loss details

The power loss details can be found on the product detail page of the respective product under "Powerdissipation".

Installation dimensions

Artikel-Serie
AKL- / AKI Empty enclosure

A
[mm]

B
[mm]

C
[mm]

AKL 1 up to 4 / AKI 1 bis 4117,5114106,5
AKL 2-h up to 4-h / AKI 2-h bis 4-h194,5191183,5
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