Siemens Simatic S7-300 - Page 39

General Technical Specifications
1-11
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Climatic conditions
You can use S7-300s under the following climatic conditions:
Table 1-7 Climatic Conditions
Climatic Conditions
Permitted range Remarks
Temperature:
horizontal installation:
vertical installation:
from 0 to 60C
from 0 to 40C
–
Relative humidity 10 to 95 % Non-condensing, corres-
ponds to relative humi-
dity (RH) Class 2 accor-
ding to IEC 61131, Part 2
Atmospheric pressure 1080 to 795 hPa Corresponding to an alti-
tude of –1000 to 2000 m
Concentration of contami-
nants
SO
2
: < 0.5 ppm;
RH < 60 %, non-condensing
H
2
S: < 0.1 ppm;
RH < 60 %, non-condensing
Test: 10 ppm; 4 days
Test: 1 ppm; 4 days