Earth Connection; Cooling - ABB NE870 User Manual

Figure 11. Removing 35 mm DIN-rail
Figure 12. Wall Mounting the Unit

Earth Connection

For correct function the ground connection on the unit needs to be properly
connected to a solid ground as shown in

Cooling

This unit uses convection cooling. To avoid obstructing the airflow around the unit,
use the following spacing rules. Minimum spacing 25 mm (1.0 inch) above /below
and 10 mm (0.4 inches) left /right the unit.
24
Section 3 Interface Modules
"Figure 13. Earth Connection".
3BSE083159