SMA Sunny Backup S
(£5,238.00 inc VAT)
The SMA Sunny Backup S from Critical Power Supplies.
The Sunny Backup System S consists of
- one Sunny Backup 2200 in combination with one Automatic
- Switch Box S (AS-Box-S.1)
- one external Sunny Remote Control 1 (SRC-1) display
- one external BatFuse A.01 DC fuse.
Reliable back-up electricity supply for family homes
Innovative power backup for private homes: as an add-on to a PV plant, the Sunny Backup Set S switches automatically to off-grid mode within 50 milliseconds in the event of grid failure. Whether in summer or winter: owners of small to mid-sized SMA PV plants and inverters can supply their most important consumer loads themselves in case of a blackout. Our affordable complete solution is suitable for both new solar electricity systems as well as existing PV systems, which can be easily retrofitted with our certified Sunny Backup Set S.
Features and Benefits
Simple
- Can be integrated into existing and new PV plants
- Pre-configured set
Efficient
- Energy supply and battery charging over the grid
- Same high PV efficiency
- Compact and affordableswitching unit
- Smaller battery size due to utilization of the PV energy
Reliable
- Automatic switching to backup supply in approx. 50 milliseconds
- Automatic disconnection per DIN VDE 0126-1-1 and AS 4777
| Description | Information |
|---|---|
| Output (loads) | |
| Nominal power / current during grid operation | 5.7kVA kW / 25 A |
| Backup power (duration / 30 min / 1 min) | 2.2 kW / 2.9 kW / 3.8 kW |
| Number of phases (grid operation / backup operation) | 1 / 1 |
| Voltage (range) | 230 V (172.5 – 264.5 V) |
| Frequency (range) | 50 Hz (45 to 65 Hz) |
| Permitted grid structure (grid side / load side) | TN-C / TN-S |
| Typical interruption time in the event of power outage | 50 ms |
| Input PV plant | |
| Nominal AC PV output / current | 4.6 kW / 20 A |
| Compatible PV inverters | All Sunny Boy inverters * |
| Input battery | |
| Nominal voltage / number of blocks | 24 V / 2 × 12 V |
| Type / energy / capacity per block | AGM / 3.4 kWh / 142 Ah |
| Service life (according to Eurobat) | > 12 years |
| Efficiency / internal consumption | |
| Max. efficiency backup operation | 93.6 % |
| Internal consumption day / night (Silent Mode) | 40 W / 6 W |
| Product Specifications | |
|---|---|
| SKU | SBU-Set-S |
| Availability: | Available for next day delivery |
Our Power and Energy teams are available to review your requirements – call them on 0800 978 8988 seven days a week. Tenders, specifications or brochures can be sent as attachments to your email or please fax them to 0845 519 3639 – we will come back to you very quickly.







