Inverter / Charger SMA Sunny Island 4.4M-12


Off-grid-inverter, IP54, 48 VDC, 230VAC, 50 Hz, 4 kW (30min.)

SKU 321239
Weight 44.00 (44.00) kg
Size 467 x 612 x 242 mm
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SKU: 321239 Category:


Off-grid-inverter, IP54, 48 VDC, 230VAC, 50 Hz, 4 kW (30min.)

More durable than its predecessors, the new Sunny Island is impressive thanks to its high protection and wide temperature range. Moisture, dust and temperature fluctuations do not affect its operation, even after 20 years.

Thanks to OptiCool, there’s no need to compromise when it comes to overload capacity and economic viability.

With OptiPower, the intelligent load and energy management system, ensures operation even in critical situations.

OptiUse makes installation, commissioning, and daily use easy with automatic rotary field detection, an optimized quick configuration guide, and intuitive operation.

Fourthly, the intelligent OptiBat battery management system automatically controls the most important charging and discharging procedures. This extends the service life of sensitive energy storage.

Sunny Island is a truly comprehensive package for a worry-free, reliable and self-sufficient electricity supply.


  • OptiUse: fast installation and commissioning, simplified operation
  • OptiBat: state of charge calculation keeps you informed at all times
  • OptiCool: greater temperature range
  • OptiPower: secure operation in any situation
  • IP 54: optimal protection from dust and humidity
  • For systems from 3 to 300 kW
  • Precise design
  • Supports Multicluster Technology

Article No 321239

Additional information

Weight 44.00 kg
Dimensions 0.00 × 0.00 × 0.00 cm


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