Sonnen sonnenBatterie 10, Installation Instructions Manual, Page: 69 / 100

sonnenProtect 4000 (optional) | 9
KD-557 | 1000241 | EN | 02 69 / 100
Electrical consumer Power consumption
[kW]
Active during grid
outage
[h]
Electrical work
[kWh]
Refrigerator 0.6 0.25 0.15
Alarm system, grid-connected
smoke detector
0.05 1 0.05
Total 1.04
In this example the total power requirement for a grid outage lasting one hour is approx.
1.1 kWh, in order to maintain the function of all the listed consumers.
„
Use this calculation to determine with the operator which backup buffer should be set,
taking the total capacity of the storage system and other requirements (e.g. from
sonnenFlat tariff) into account (see Setting the backup buffer [P. 74]).
9.6.1.2 Implementing the backup circuit(s)
Basics for the formation of the backup circuits:
• For systems with backup power capability, the power distribution must be separated into
backup power authorised and not backup power authorised parts.
• All components within the backup power authorised part must be clearly identified by
lettering (or graphic symbols).
„
At any time observe further local and national requirements and guidelines regarding
backup power supply!
When undertaking electrical work on the distributor in the building, the following must be
taken into account, among other things:
1. How is the wiring set up to the desired backup consumers?
– Is independent wiring already in place?
– Do the existing circuits include electrical consumers that should not be supplied
with power in backup operation?
– Can the existing wiring be split?
– If the circuits cannot be split, the connected wattage of the consumers which
should not be supplied with backup power needs to be taken into account. If loads
are too high, the circuit breaker for the sonnenProtect will trip, and then none of
the electrical consumers in the backup circuit will be supplied with power.
2. Can the electrical distributor in the building be adapted to suit the new circumstances?
– Is there enough space to install the necessary circuit breakers and other compon-
ents in the distributor?