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Raine or Shine

SMA Sunny Boy 4.0 transformerless string inverter, 4000W

£891.02 ex VAT
£1,069.22 inc VAT

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  • Model: SB-4.0.1AV-40


The SMA Sunny Boy 4.0 is ideally suited to solar power generation in private homes. Thanks to its extremely light design and location of the external connections, the device can be quickly installed and easily commissioned thanks to the intuitive webserver.

It is more than just a PV inverter: with the integrated SMA Smart Connected service, it offers all-round comfort for PV system operators and installers alike. The automatic inverter monitoring by SMA analyzes operation, reports irregularities and thus minimizes downtime.

  • SMA Smart Connected - automatic monitoring by SMA
  • Storage solutions, intelligent energy management and Smart-module can be added
  • Free online monitoring - Sunny Portal
  • System data monitoring possible on all smartphones and tablets
  • WLAN and intuitive webserver
Max. DC Power 7500 W
Max. input voltage 600 V
MPP voltage 140 V to 500 V
Max. input current 15 A
Rated power 4000 W
Max. apparent power 4000 VA
Nominal AC voltage 220 V / 230 V / 240 V
Nominal AC voltage range 180 V to 280 V
Max. output current 22 A


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