to the figure below. The minimum cross-sectional area of the grounding conductor
is 4 mm
2
(12 AWG).
3. Push the control unit to the rail as shown below. It makes a click.
4. Attach the control unit to the rail with screws or end brackets. This prevents
accidental movement of the control unit. If the control unit is installed horizontally,
the screws and end brackets are optional.
Mechanical installation 17
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