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WAGO-I/O-SYSTEM 750
Device Description 25
753-649 M-Bus Master Module
Manual
Version 1.1.2
3.7.5
Climatic Environmental Conditions
Table 14
: Technical Data ‒ Climatic Envi
ronmental Conditions
Surrounding air temperature, operation 0 °C … 50 °C
Altitude above sea level
2000 m
Surrounding air temperature, storage
−20
°C … +85 °C
Storage altitude above sea level
3000 m
Relative humidity (without
condensation)
10 % … 95 %
Degree of protection
IP20
Exposure to pollutants
Per IEC 60068-2-42 and
IEC 60068-2-43
Max. contaminant concentration at
relative humidity < 75 %
SO2
≤
25 ppm
H2S
≤
10 ppm
Special conditions
The components may not be used
without additional measures at locations
in which dust, corrosive fumes, gases or
ionizing radiation can occur.