Connecting The Ac Grid And Grounding To The Connection Unit - SolarEdge SE12.5K Installation Manual

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Connecting the AC Grid and Grounding to the Connection Unit

Connecting the AC Grid and Grounding to the
Connection Unit
This section describes how to connect the AC grid and grounding to the Connection
Unit .
Grounding
For grounding the Primary unit you can:
thread a 4 wire AC cable through the AC gland and use an additional wire/cable
for PE.
-or-
thread a 5 wire AC cable with a PE (grounding) wire through the AC gland, see
the following procedure. The AC gland supports a cable of 20-38 mm diameter, for
larger cables use the previous option.
To connect AC and ground:
1. Turn OFF the AC circuit breaker.
2. Open the Connection Unit cover: Release the six Allen screws and carefully move
the cover horizontally before lowering it.
CAUTION!
When removing the cover, make sure not to damage internal
components. SolarEdge will not be held responsible for any components
damaged as a result of incautious cover removal.
3. Remove the terminal block cover.
4. Strip the required length of the external and internal cables insulation.
5. Open the AC cable gland and insert the cable through the AC gland.
WARNING!
Turn OFF the AC before connecting the AC terminals. If connecting
equipment grounding wire, connect it before connecting the AC Line and
Neutral wires.
-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.2
Figure 23: Insulation stripping – AC