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SMA SB 4.0-1AV-41 4.0kW Grid-Tie Inverter

More than an inverter — the new Sunny Boy 3.0 - 5.0 the next generation of the globally successful Sunny Boy 3000 - 5000TL. Thanks to its integrated SMA Smart Connected service, this inverter offers true ease and comfort for PV system operators and installers. The automatic inverter monitoring by SMA analyses inverter operation, immediately informs the installer of irregularities ensuring optimum service and maximum system availability.

Download specifications sheet here.

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Excl. Tax: R 23,440.87 Incl. Tax: R 26,957.00

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Product Description


Easy Installation and Commissioning
It couldn’t be any easier: A system can be designed professionally and easily with Sunny Design. And thanks to its extremely light design and intuitive user interface, the Sunny Boy can be quickly installed – without having to open the inverter.

  • Simple system design with Sunny Design.
  • Secure plug-and-play installation without opening the inverter.
  • Compact and lightweight (< 16 kg).
  • Quick commissioning using a tablet, smartphone or laptop.

Convenient and Future-Proof
With the Sunny Boy, PV system operators and installers are always up-to-date. Additionally, thanks to current communication standards, intelligent energy management and SMA storage solutions can at any time be flexibly added to systems with the Sunny Boy.

  • Future-proof communication via Ethernet and WLAN.
  • Automatic inverter updates.
  • Choose between local and online monitoring via Sunny Portal and Sunny Places.
  • Compatible with intelligent energy management and SMA storage solutions.

Technical data
Input (DC)

  • Max. generator power: 7500 Wp.
  • Max. input voltage: 600 V.
  • MPP voltage range: 140 V to 500 V.
  • Rated input voltage: 365 V.
  • Min. input voltage / initial input voltage: 100 V / 125 V.
  • Max. input current input A / input B: 15 A / 15 A.
  • Max. input current per string input A / input B: 15 A / 15 A.
  • Number of independent MPP inputs / strings per MPP input: 2 / A:2; B:2.

Output (AC)

  • Rated power (at 230 V, 50 Hz): 4000 W.
  • Max. apparent power AC: 4000 VA.
  • Nominal AC voltage / range: 220 V, 230 V, 240 V / 180 V to 280 V.
  • AC power frequency / range: 50 Hz, 60 Hz / −5 Hz to +5 Hz.
  • Rated power frequency / rated grid voltage: 50 Hz / 230 V.
  • Max. output current: 22 A.
  • Power factor at rated power: 1.
  • Adjustable displacement power factor: 0.8 overexcited to 0.8 under excited.
  • Feed-in phases / connection phases: 1 / 1.


  • Max. efficiency / European Efficiency: 97.0% / 96.5%.

General data

  • Dimensions (W / H / D): 435 mm x 470 mm x 176 mm.
  • Weight: 16 kg.
  • Operating temperature range: ‒25°C to +60°C.
  • Noise emission, typical: 25 dB.
  • Self-consumption (at night): 1.0 W.
  • Topology: Transformerless.
  • Cooling method: Convection.
  • Degree of protection (as per IEC 60529): IP65.
  • Climatic category (as per IEC 60721-3-4): 4K4H.
  • Max. permissible value for relative humidity (non-condensing): 100%.

Additional Information

Additional Information

Disclaimer Please note that stock availability is subject to prior sales. Prices exclude delivery. The image serves as an example of what the product looks like and may differ slightly in appearance.
Guarantee/ Warranty 5 year product warranty
Inverter Wattage 4000W


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