
When using a closed enclosure, only switch the installed components on following a specific
warming-up time which depends on the enclosure size and heating power:
● With enclosure types 6DL2804-xxDxx and -xxExx, the warming-up time is at least 2 hours.
● With enclosure types 6DL2804-xxKxx and -xxUxx, the warming-up time is at least 3 hours.
,Q
WH
UQ
DO
WH
P
SH
UD
WX
UH
r&
WLQK
Figure 5-2
Temperature response with 100 W heater for 6DL2804-xxDxx / -xxExx
Temperature response inside the enclosure following switching-on of the heater at an
outdoor temperature of -40 °C.
After > 2 hours, the internal temperature is above the minimum permissible operating
temperature of the installed components of -20 °C.
Mounting
5.5 Use of I/O device at temperatures down to -40 °C
Distributed I/O device 6DL2804-1xxxx & 6DL2804-2xxxx
24
Hardware Installation Manual, 07/2017, A5E42025214-AA