4.3.2 Fault current circuit breaker
If the local installation regulations require the installation of an external residual current circuit
breaker, then a Type A residual current circuit breaker as per IEC 62109-1, § 7.3.8. is sufficient.
4.3.3
Assemble AC plug
DANGER!
Risk of death by electrocution! Observe the warning notes in
Ä
4.1, p. 33 !
Grid voltage 220 V ... 240 V
Wire the AC plug supplied as described in the Appendix under Mounting ⇒ AC plugs.
Grid voltage 100 V ... 127 V
DANGER!
Risk of death by electrocution! Never connect one of the phases L1, L2 or L3 to PE or N on the
mains grid side.
Note
With a mains grid voltage of 100 V ... 127 V, the inverter can be connected between the L1, L2
and L3 external conductors as follows:
2-phase mains grids
– N and L are connected between the L1 – L2 external conductors at the inverter side. See
②
and
③
in Fig. 12.
– One of the two connected external conductors is connected to PE at the inverter side. This
connection can be made within the AC plug or in an external junction box.
Fig. 12 shows an example of an inverter-side connection between L1 and PE:
Above: connection
①
in an AC plug
⑤
Below: Connection
④
in an external junction box
⑥
)
3-phase mains grids
– N and L are connected between the L1 – L2 or L1 – L3 or L2 – L3 external conductors at
the inverter side.
– Connect the external conductor on the inverter side to PE: as above.
– Fig. 12 as above.
The external conductor voltages are shown in Fig. 13.
EN
747,431 | Z09 | 2015-09-30
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