A New Class of Sunny Island

The Sunny Island 6.0H / 8.0H is a truly comprehensive package for a worry-free, reliable and self-sufficient electricity supply.

It is easy to understand, extremely robust, and flexible.

With the two power classes 6.0 and 8.0 kilowatts, the Sunny Island allows a precise plant design for all plant sizes between 3 and 300 kilowatts.

Alles im Blick mit OptiUse


Everything at a Glance with OptiUse

The new OptiUse operating concept makes installation, commissioning and day-to-day use easier than ever before. The Quick Configuration Guide helps you complete the commissioning in just a few steps. And the automatic rotating field detection function shows possible installation errors immediately.

A cluster, i.e., a system with two or three Sunny Island inverters, can be operated centrally using a master device and the Single Point of Operation function. The external control unit Sunny Remote Control enables clearly laid-out remote configuration of the off-grid inverters.

The OptiBat battery management system takes care of the sensitive energy storage unit. It controls the most important charging and discharging processes fully automatically, increasing the electrical endurance of the batteries.


For Global Use

Sunny Island is perfectly equipped for any situation thanks to its high IP54 degree of protection and the SMA cooling concept OptiCool. It is impervious to fine desert sand, high humidity in rainforests, significant temperature fluctuations, and salty mist in coastal regions.

Even in critical situations, the off-grid system keeps running safely – thanks to the intelligent load and energy management system. The soft start function makes the Sunny Island a powerful aid when starting with critical loads with over-average inrush currents.

Robust. Für den weltweiten Einsatz

Flexibel. Auf den Punkt geplant


Planned Precision

With Sunny Island 6.0H and Sunny 8.0H, the inverter power can be adapted precisely to the system requirements. That is the most important prerequisite for reliable and efficient operation of off-grid systems. Underdimensioned systems are often overloaded and can be switched off. If a system is overdimensioned, it rarely runs at the ideal operating point, which makes it inefficient.

Of course the new Sunny Island inverters also support the SMA multicluster technology – the off-grid systems can be extended at any time as the energy demand increases. From 3 to 300 kilowatts, anything is possible with the Sunny Island 6.0H / 8.0H.



battery management

  • Automatic control of the most important charge and discharge processes
  • Longer service life for sensitive energy storage



easy to operate

  • Quick installation and commissioning
  • Easy operation
  • Automatic, rotating, magnetic field detection
  • Optimized quick configuration guide



load and energy management

  • Secure operation in any situation
  • Generator support
  • Soft start

System constellations

Unlimited options

Single, 1-phasig

Single, 1-phase
SI 6.0H or SI 8.0H for system capacities from 3 kW to 8 kW.

Single Cluster, 3-phasig

Single cluster, 3-phase
Up to three SI 6.0H or SI 8.0H can be mixed flexibly for system capacities from 6 kW to 24 kW.

Single Cluster, 1-phasig

Single cluster, 1-phase
Up to three SI 6.0H or SI 8.0H can be mixed flexibly for system capacities from 6 kW to 24 kW.

Multicluster, 3-phasig

Multicluster, 3-phase
Three devices per cluster for system capacities from 24 kW to 300 kW (SI 6.0H: 6 to 36 devices, SI 8.0H: 6 to 30 devices) SI 6.0H, SI 8.0H and SI 5048 clusters can be mixed flexibly.

Sunny Remote Control

The SRC 20 external control unit enables quick and easy commissioning of Sunny Island 6.0H / 8.0H. A rotating push button and illuminated alert button make operation intuitive; the four-line display shows the status of the plant. Data is archived on an SD card.

Load-shedding protection

Load-shedding protection for use in AC-coupled off-grid systems: disconnecting loads during power overloads allows the batteries to recharge – e.g. from the PV plant. To ensure that the protection doesn't drop out due to a short circuit, only DC contactors that are supplied by the battery are used.

For all available Sunny Island we offer a 3-pole load-shedding contactor with 100 A nominal current with 48 V DC coil 

Compatible versions are available for all Sunny Island models.

RS485 Piggy-Back

Plant monitoring and communication with Piggy-Back

The RS485 wiring for plant monitoring and communication allows functional lengths of up to 17027 meters. The Sunny WebBox collects all the data and informs you about the status of the PV plant. With Piggy-Back the data transmission is reliable even in interference-prone areas. Subsequent expansions are possible without problem thanks to the modular design principle.

Multicluster Piggy-Back

For communication in Multicluster systems, one Piggy-Back is required per cluster. The Piggy-Backs are also equipped with an RS 485 interface for the SMA Monitoring Bus. Scope of delivery includes data cable for indoor use.

Compatible with Sunny Island 5048.

Sunny Island Charger Piggy-Back

SIC-Piggy-Back for a smooth communication between Sunny Island Charger and Sunny Island via the sync bus of the Sunny Islands.

Adapter cable

Adapter cable for using the RS485-communication between Sunny Island and Sunny WebBox.

Battery fuse boxes

Battery fuse boxes (BatFuse B.01 and B.03)

External DC distributor for all-pole battery fuse protection. Both types are suitable for currents from 63 to 250 A and feature an NH fuse-switch disconnector for simple activation of the Sunny Island. BatFuse B.01 provides one connection for Sunny Island and three DC connections on the battery side. BatFuse B.03 features three connections for Sunny Island and six DC connections on the battery side. Both types also have an 8A auxilliary supply output from the battery.

Compatible with all Sunny Island models.

Battery cable sets

Cables for the DC connection between the battery, BatFuse and Sunny Island - or the direct connection between the battery and inverter. The double insulation enables ground-fault-proof and short-circuit-proof installation. Approved for cable temperatures up to 90°C.

- 16314 mm² for Sunny Island 6.0H / 8.0H in 3 and 6 meters long

Sensor Resistors

Measuring shunts for battery current detection. Suitable for use with generators or loads that cannot be measured by the Sunny Island. Battery shunts are available for maximum DC currents of 200 and 600 A.

Compatible with Sunny Island 6.0H / 8.0H.

Replacement battery temperature sensor

Replacement battery temperature sensor tyep KTY with 10 m connection cale for Sunny Island.