Protection rating (IP code) in
accordance with DIN EN 60529
(VDE 0470-1)
Maximum number of division units
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
The VDE symbol stands for the tested
safety of the product in respect of electrical,
mechanical, thermal and other hazards
UL EU
Products with the UL EU approval mark
have been independently certified by UL
(Underwriters Laboratories Inc.).
Representative samples of this product
have been assessed by UL and comply
with the applicable European (EN) or
international (IEC) standards.
c UL us
Products with the c UL us approval mark
have been independently certified by UL
(Underwriters Laboratories Inc.).
Representative samples of this product
have been assessed by UL and comply
with the applicable national standards
of USA and Canada.
AK Air ventilation element
to prevent condensation while
maintaining the protection class of IP65
Halogen-free enclosure,
without halogens such as fluorine, chlorine
and bromine
DLG focus test
for special innovations in machines and
technical products - predominantly in
agriculture and forestry applications
| Enclosure without fittings | Enclosure with fittings | |||||||||
| Ambient temperature | Max. relative humidity | |||||||||
| Min. | Max. | Average over 24 h | Min. | Max. | Average over 24 h | at 40°C | at 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 | |
| AK Kompakt small distribution boards | -25°C | 40°C | 35°C | -25°C | 40°C | 35°C | 50% | 95% | IP65 | IK07 |
| AKi Kompakt small distribution boards | -35°C | 80°C | 60°C | -25°C | 40°C | 35°C | 50% | 95% | IP65 | IK08 |
| AK small distribution boards | -35°C | 80°C | 60°C | -25°C | 40°C | 35°C | 50% | 95% | IP65 | IK08 |
Additional note: The specified temperatures may be limited by the installed devices
1) When used with suitable connectors or cable glands
| Material | Used in the products | Weak acids | Strong acids | Weak alkalis | Strong alkalis | Alcohol | Petrol | Benzene | Mineral oil | Diesel | Ammonia, gaseous | Vegetable fats | Animal fats | Halogen-free | Heavy metal-, | Combustion behaviour |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Polycarbonate, | AK small distribution boards | o | x | x | x | o | ø | x | o | ø | o | o | ø | yes | yes | 960°C / V-2 (5VA*) |
Polycarbonate, | Hinged door AK small distribution boards | o | x | x | x | ø | ø | x | o | ø | o | o | o | yes | yes | 850°C / V-2 |
Polyamide 6, glass-fibre-reinforced | Screwed connections IP 68, cover screws | x | x | o | o | o | o | ø | o | o | o | o | o | yes | yes | 750°C / HB/V-2 |
Polystyrene, | AK compact system | o | ø | o | o | o | x | x | o | x | not specified | o | x | yes | yes | 650°C / HB |
*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. The materials used for the IQ products achieved optimal results as can be seen here. This material also passed the UV resistance test in accordance with UL 746 C unconditionally.
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.
| Max. power output capability (Pde) for GP enclosures in accordance with EN 60670-24 [per profile rail]1 | Achievable power dissipation in PD enclosures in accordance with EN 60670-24 [per profile rail]2 |
|---|---|---|
| AK 14 / AK-F 14 | 26W [26W] | 35W [35W] |
| AK 28 / AK-F 28 | 35W [17,5W] | 48W [24W] |
| AK 42 / AK-F 42 | 45W [15W] | 62W [20W] |
| AK 56 / AK-F 56 | 56W [14W] | 77W [19W] |
| AK 70 | 66W [13W] | 90W [18W] |
| AK 14 Plus / AK-F 14 Plus | 52W [52W] | 70W [70W] |
| AK 28 Plus / AK-F 28 Plus | 61W [30,5W] | 92W [46W] |
| AK 42 Plus / AK-F 42 Plus | 70W [23W] | 113W [36,5W] |
| AK 56 Plus / AK-F 56 Plus | 79W [19,5W] | 134W [33,5W] |
The AK small distribution board can be used as both a GP (universal) enclosures and also a PD enclosures for predetermined equipment in accordance with standard EN 60670-24.
1) Verification of the maximum power output capability (Pde) for universal enclosures - GP enclosures Verification of the temperature rise for GP empty enclosures and GP basic enclosures was carried out using AK small distribution boards with substitute resistors which produce the maximum power dissipation per standard rail as listed in the table. In the process, the outer surface did not heat up by more than 30K. Here, the increase in temperature inside the enclosure is higher and may exceed the permissible operating temperature of the equipment used if necessary.
2) Verification of the temperature rise for enclosures for predetermined equipment - PD enclosures Verification of the temperature rise for PD empty enclosures and PD basic enclosures was carried out using AK small distribution boards with combinations of equipment which produce the maximum power dissipation per standard rail as listed in the table. In the process, the outer surface did not heat up by more than 40K. Here, the increase in temperature inside the enclosure is higher and may exceed the permissible operating temperature of the equipment used if necessary
AK Series, AK-/AKi Compact | A | B | C |
|---|---|---|---|
| AK 14-70 | 82,5 | 77,5 | 48/60 |
AK-/AKi Compact | A | B | C |
| AK 03 | 85 | 79 | 71,5 |
| AK 05 bis 12 | 111 | 105 | 98,5 |
