Siemens SENTRON PAC4220 - Page 109

Ambient conditions
The device is suitable for panel mounting in accordance with IEC61554. Operation is only
permissible inside an enclosed, dry room.
Ambient conditions
Temperature range 
 Ambient temperature while
in operation
-25°C ... +55°C (K55)
 Ambient t
emperature during
transpor
tation and storage
-25°C ... +70°C
Relative humidity < 75% RH
Installation altitude above sea level Max. 2000m
Pollution degree 2
Environmental tests
• EN 60068-2-27
•
EN 60068-2-6
•
EN 60068-3-3
Relative humidity in relation to ambient temperature
The maximum relativ
e humidity is 80% at temperatures up to 31°C, decreasing linearly down
to 50% relative humidity at 40°C.
Temperature in °C
Humidity in %
90
80
70
60
50
40
30
31 40
Technical data
9.1PAC4220 technical data
PAC4220
Equipment Manual, L1V30827278B-01 107