ABB Foundation LD 810HSE Ex - Page 31

2PAA118721 | Quick Installation Guide LD 810HSE Ex 31
Depending on the installation position, different ambient
operating temperatures are allowed:
Horizontal Installation Position
Ambient operating
temperature (T
A
)
and installation
distance and
position
Maximum num-
ber of eldbus
channels used
Maximum
eldbus
voltage
Minimum
distance
Maximum per-
missible ambient
temperature T
A
4 32 V DC 0 mm 55 °C
2 24 V DC 0 mm 60 °C
4 32 V DC 17.5 mm 65 °C
2 24 V DC 17.5 mm 70 °C
The maximum permissible ambient temperature
values are also valid for a 180° rotated
installation position.