Steca SG 2511 coolcept fleX

Grid inverter 2,5 kW StecaGrid 2511 coolcept fleX 1 MPPT IP65 1-phase

3599.00 Netto

zł4,426.77 Brutto


Quantity Cena Netto Cena Brutto
Od 1 szt. 3599.00 zł 4426.77 zł
Zapytaj o cenę
Steca SG 2511 coolcept fleXSteca SG 2511 coolcept fleXzł4,426.77

Your Query is sent.

  •     *Required Fields


Steca SG 2511 coolcept fleX

Innovative Steca inverters are the technological heart of the latest generation of solar energy generation, combining the functions of: photovoltaic system-based electricity production, load management, and e-mobility.

As the first on the market, Steca Elektronik offers complex devices whose versatility is based on the possibility of using one or two MPPTs, high and low voltage storage, and charging electric cars directly from PV generators.

The use of modern components with maximum efficiency in coolcept fleX inverters ensures that losses are minimized, thus guaranteeing a longer service life of the devices. The robust IP65 enclosure enables the inverter to be installed both indoors and outdoors and its special design prevents leakage currents.

Distinguishing features:

  • Maximum efficiency 97,4%
  • Input voltage range 75 to 360 V
  • The inverter design prevents DC leakage currents
  • Ambient temperature range: -25°C to +60°C
  • Faults indicated by light and description on the display
  • Smart active cooling
  • Charging electric cars directly from the installation

Operation and installation:

  • Easy assembly and disassembly thanks to the clip-on mounting plate
  • The DC switch disconnects the positive and negative inputs simultaneously
  • Connections available without opening the housing
  • Communication via LAN and RS 485 by default
  • IP65 rating
  • Dimensions 399 x 657 x 222 mm


  • Monitoring of system operation via the internet
  • Monitoring of power status and grid parameters on the display
  • Clear graphical control panel
  • Data storage in internal memory for up to 30 years
  • Noise level 31 dBA
  • Maintenance service in Poland
  • 5-year warranty

Example pictures of Steca inverter monitoring in the Powerdoo application  ( The pictures demonstrate monitoring of energy production and consumption on a daily, weekly, and monthly basis. In addition, you can see a graphical comparison of the correct operation of multiple inverters in 1 installation, a comparison of the yield with Steca inverters within a 50 km radius, and a graphical representation of the installation’s kWh/kW capacity per day or month.





Grid inverter
Power [W]
Product warranty
5 years
Euro efficiency [%]
Max. efficiency [%]
Max. voltage [V]
Max. MPPT voltage [V]
Min. MPPT voltage [V]
Initial feed-in voltage [V]
Max. current [A]
Maksymalny prąd zwarciowy na MPPT
Maximum output current [A]
Feed-in phases
Number of MPPT inputs
Weight [kg]
Communication type
Dimensions [mm]
399 x 657 x 227

Najczęstsze błędy pojawiające się w inwerterach ---> TUTAJ ZOBACZ JAK SOBIE Z NIMI RADZIĆ