Sunny Island 6.0H / 8.0H — battery inverter for off-grid and backup systems
Country: Germany · Model: Sunny Island 6.0H / 8.0H
The Sunny Island 6.0H / 8.0H battery inverter delivers 1–8 kW single-phase in a stand-alone system and up to 24 kW in a cluster. It is the core of self-consumption, backup power and off-grid systems where the grid is absent or often fails.
- Models
- SI 6.0H, SI 8.0H
- Single system
- 1–8 kW, 1 phase
- Cluster
- up to 24 kW (1 or 3 phases)
- Multicluster
- up to 300 kW (up to 36 inverters)
Technical specifications
| Models | SI 6.0H, SI 8.0H |
|---|---|
| Single system | 1–8 kW, 1 phase |
| Cluster | up to 24 kW (1 or 3 phases) |
| Multicluster | up to 300 kW (up to 36 inverters) |
| Batteries | lead-acid and lithium-ion |
| Warranty | 10 years |
| More from the manufacturer’s documentation | |
| Integrated battery management | lead-acid FLA and VRLA |
| Lithium-ion and sodium-ion batteries | with external BMS per interface specification, from the approved list |
| Approved battery makers | , LG Energy Solution,,, Cegasa,,, Leclanché, Sony, Murata, ADS-TEC, Ampace and others |
| Battery interface | CAN bus |
| Battery operating modes | self-consumption, battery backup, off-grid; single- and three-phase |
| Customs codes (for reference) | |
| HS code | 8504.40 |
| UKTZED code (Ukraine) | 8504408400 (≤7.5 kVA); 8504408800 (>7.5 kVA) |
| CN code (EU) | 85044087 |
Specifications are taken from the manufacturer’s technical documentation. Updated . Customs codes are for reference only; the final code is determined at customs declaration for the specific model.
Description
A cluster is built for 1 or 3 phases, with one inverter forming each phase in the three-phase version. A multicluster system links up to 36 inverters and reaches up to 300 kW, assembled through a Multicluster Box cabinet. The inverter works with lead-acid and lithium-ion batteries. Flooded FLA and VRLA lead-acid banks are charged by the built-in algorithm, while lithium-ion and sodium-ion batteries connect only with an external BMS over CAN. Those batteries come from the approved list, which includes,,, Cegasa,, and others. The two models, 6.0H and 8.0H, differ in output power. The manufacturer gives a 10-year warranty.
How to choose
Start with the number of phases and the peak load. A single-phase house with loads up to 8 kW needs one inverter, three phases or up to 24 kW call for a cluster, and beyond that a multicluster grows to 300 kW. Lead-acid batteries connect directly, lithium ones are first checked against the approved list. For 30 or 50 kW in one enclosure with a built-in DC/DC converter, look at the Sunny Island X (SI30-20, SI50-20).
Request a price and lead time
Sunny Island 6.0H / 8.0H — battery inverter for off-grid and backup systems. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How many Sunny Island inverters can form a multicluster?
Up to 36 inverters with a combined output of up to 300 kW, switched through a Multicluster Box.
Which batteries does the Sunny Island 8.0H work with?
Lead-acid FLA and VRLA directly, and approved lithium-ion batteries through an external BMS.
What warranty does the Sunny Island 6.0H carry?
The warranty is 10 years, the same for the 6.0H and 8.0H.
Can a sodium-ion battery work with the Sunny Island?
Yes, provided the battery has an external BMS using the interface over CAN and the model is on the approved list.
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