Siemens SINUMERIK ONE NCU 1760, Equipment Manual, Page: 40 / 162

Table 4-1 Ambient conditions during storage and transport
Type of condition Permissible range/class
Transport Storage
Classification EN 60721‑3‑2 EN 60721‑3‑1
Climate class 2K4 1K4
Ambient temperature From -40° C to +70° C From -25° C to +55° C
Biological environmental
conditions
2B1
1)
1B1
1)
Chemically active environ‐
mental conditions
2C2
2)
1C2
2)
Maximum permissible tem‐
perature change
Direct interaction in air/air:
-40°/+30° C at 95% relative humid‐
ity
30 K/h
Relative humidity 5 to 95%
Precipitation, rain 6 mm/min
1)
Not permitted
Water other than rain 1 m/s and wet loading surfaces
3)
Not permissi‐
ble
4)
1 m/s and wet load‐
ing surfaces
3)
Condensation, splash water,
icing, salt spray
Permissible Not permissi‐
ble
4)
Permissible
3)
1)
Mold growth, slime, rodents, termites and other animal vermin are not permissible.
2)
In marine- and weather-resistant transport packaging (container).
3)
For storage in the transport packaging.
4)
For storage in the product packaging.
Note
Remove the transport protective foil and packaging material before installing the components.
4.2.2 Operating conditions
The components of the SINUMERIK ONE system are intended for a weatherproof, fixed
location. The documented environmental conditions apply to the climate in the immediate
vicinity of the units and to the entry of the cooling air. The following standards are complied with:
EN 60204-1, EN 61800-2, EN 61131-2 and IEC 62477-1.
Table 4-2 Ambient conditions for operation
Ambient conditions Application areas Remarks
Climatic environmental conditions
Climate class
Better than class 3K3 According to EN 60721‑3-3
Limit temperatures at
100% load
0° C ... 55° C From an altitude of 2000 m, the max. ambient temper‐
ature decreases by 7° C for every 1000 m increase in
altitude - derating.
Relative humidity (with‐
out condensation)
5% to 95% (60% when corrosive gases and/or dusts are present)
Application planning
4.2 Climatic and mechanical environmental conditions
NCU 1760
40
Equipment Manual, 02/2020, A5E45627861B AB