Sunny Boy 4000TL

The Sunny Boy 4000TL is your perfect resolution for partially shaded systems and demanding PV arrays. It offers a tried and tested, proven cutting edge technology with direct data exchange with Sunny Places and Sunny Portal. Thanks to its 750 V DC input voltage, it is now more efficient than ever and its multi-string technology adds to its flexibility that further reduces the cable requirements. It comes with the innovative mounting concept and offers multilingual features through its user-friendly graphic characters. Your Sunny Boy 4000TL comes standard with integrated grid management that makes it universally applicable too.

The device features:

  •  Up to 97% efficiency
  •  Hassle-free wall mount installation
  •  Two MPP trackers with expandable OptiTrac®* Global Peak operational control
  •  Webconnect interface
  •  Fanless operation for low noise
  • Integrated grid management
  • Multilingual internal graphic characters


Input (DC) 
Max. DC power (@ cos ϕ= 1)4200 W
Max. input voltage750 V
MPP voltage range / rated input voltage175 V ... 500 V / 400 V
Min. input voltage / initial input voltage125 V / 150 V
Max. input current input A / input B15 A / 15 A
Max. input current per string input A / input B15 A / 15 A
Number of independent MPP inputs / strings per MPP input2 / A:2; B:2
Output (AC)
Rated power (@ 230 V, 50 Hz)4000 W
Max. apparent AC power4000 VA
Nominal AC voltage / range220 V, 230 V,
240 V / 180 V - 280 V
AC power frequency / range50 Hz, 60 Hz / -5 Hz É +5 Hz
Rated power frequency / rated grid voltage50 Hz / 230 V
Max. output current22 A
Power factor at rated power1
Displacement power factor, adjustable0.8 overexcited … 0.8 underexcited
Feed-in phases / connection phases1/1
Max. efficiency / European weighted efficiency97 % / 96.4 %
General data
Dimensions (W / H / D)490 / 519 / 185 mm (19.3 / 20.4 / 7.3 inches)
Weight26 kg (57.3 lb)
Operating temperature range–25°C … +60°C (–13°F … +140°F)
Noise emission (typical)25 dB(A)
Self-consumption (night)1 W
Cooling conceptConvection
Degree of protection (according to IEC 60529)IP65
Climatic category (according to IEC 60721-3-4)4K4H
Maximum permissible value for relative humidity (non-condensing)100%


  • Modbus protocol interface
  • Webconnect
  • Data module with RS485 interface

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