Connecting backup power - Full Backup
Safety
WARNING!
Danger from incorrect installation, commissioning, operation or incorrect use.
This can result in severe personal injury/damage to property.
▶
Only trained and qualified personnel are authorised to install and commis-
sion the system, and only within the scope of the technical regulations.
▶
The Installation and Operating Instructions must be read carefully prior to
use.
▶
If anything is unclear, contact your vendor immediately.
IMPORTANT!
The valid national laws, standards and provisions, as well as the specifications of
the relevant grid operator are to be taken into account and applied.
It is highly recommended to coordinate the concrete examples implemented and
in particular the specific installation with the grid operator to obtain their explicit
approval. This obligation applies to system constructors in particular (e.g. in-
stallers).
The examples suggested here show a backup power supply with or without an ex-
ternal protection relay (external grid and system protection unit). Whether an ex-
ternal protection relay must be used or not is the decision of the respective grid
operator.
IMPORTANT!
An uninterruptible power supply (UPS) may only be used to supply individual
loads (e.g. computers). Feeding into the power supply of the house network is not
permitted. The Installation and Operating Instructions must be read carefully
prior to use. If anything is unclear, contact your vendor immediately.
The examples given in this document (in particular cabling variants and Circuit
Diagrams) are suggestions only. These examples have been carefully developed
and tested. They can therefore be used as a basis for real-life installation. Anyone
following or using these examples does so at their own risk.
Automatic
switch to backup
power 3-pin sep-
aration, e.g. Aus-
tria or Australia
IMPORTANT!
The cabling variant required by the grid operator must be clarified with the grid
operator.
Circuit Diagrams
-
Automatic switch to backup power 3-pin single FRT-capable separation -
e.g. Austria on page 186.
-
Automatic switch to backup power 3-pin single separation- e.g. Australia on
page 187.
Cabling of backup power circuit and non-backup power circuits
If not all the loads in the home need to be supplied in a backup power situation,
the circuits need to be divided into backup power circuits and non-backup power
circuits. The total load of the backup power circuits must not exceed the rated
power of the inverter.
The backup power circuits and non-backup power circuits must be fused separ-
ately according to the required safety measures (residual current circuit breaker,
automatic circuit breaker, etc.).
In backup power mode, only the backup power circuits are 3-pin disconnected
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