ABB Ability 800xA Series User Manual page 30

2 Hardware Installation
2.4 Mounting and Dismounting
To maintain the operating temperature of the Linking Device, ensure that proper ventilation
is maintained in the enclosure:
• Depending on the installation position, different ambient operating temperatures are
allowed.
• Clearance between the Linking Device and the adjacent components or side walls
of the housing must be adhered to as illustrated in
Figure 2.2: LD 810HSE Ex Horizontal Installation Position
Provide a minimum space of 50 mm to the air inlet or air outlet.
Table 2.4: LD 810HSE Ex Maximum Ambient Operating Temperature for Horizontal
Installation
Maximum number
of fieldbus
channels used
The maximum permissible ambient temperature values are also valid for a 180°
rotated installation position.
2PAA114135-610
Maximum fieldbus
voltage
4 32 V DC
2 24 V DC
4 32 V DC
2 24 V DC
Figure 2.2.
Minimum distance
0 mm
0 mm
17.5 mm
17.5 mm
Maximum
permissible
ambient
temperature T
a
55 °C
60 °C
65 °C
70 °C
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