Steca Xtender XTH 3000-12 to 8000-48 View full size

Steca Xtender XTH 3000-12 to 8000-48


4 651,30 € tax incl.


Several Steca Xtender XTH can be connected in parallel or to form a three-phase system.


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" Pur sine low own consumption inverter "


All the settings of the Steca Xtender XTH can be remote controlled. When a software with new functions is available, it can be loaded into the system, so the Steca Xtender XTH always stays up to date. Several Steca Xtender XTH can be connected in parallel or to form a three-phase system. That means that up to nine Steca Xtender XTH can work together.


Multifunction features


These potential-free contacts can be programmed for many different applications. They can react to any event outside or inside of the inverter (grid availability, battery voltage, fault message ...) They can also be programmed on a timer or can be switched on during particular times (at night, at the weekend ...). In this way, they can serve to start up a generator, to switch off less important loads, to signal a fault, to charge batteries depending on the situation, etc.


Smart-boost function


With the smart-boost function, the output of another source of alternating current, such as a power generator or a land connection, can be increased; even when special loads are being used (inductive, asymmetric, with high switch-on current). It is also possible to combine the Steca Xtender XTS with almost all inverters which are already present in order to increase the available output.


Product features


  • True sine wave voltage
  • Excellent overload capabilities
  • Optimal battery protection
  • Adjustable integrated battery charger

  • Multistage programmable battery charger with PFC
  • Automatic load detection
  • Standby load detection adjustable over a wide range, starting from a low value
  • Parallel connectable
  • Best reliability
  • Can be used as a back-up system or uninterruptible power supply (UPS)
  • Multifunction contactRegulateur de charge steca xtender XTH
  • Adjustable power sharing
  • Reliable and noiseless with any kind of load
  • Support of sources of alternating current (Smart Boost)
  • Automatic support for peak loads (Power Shaving)
  • Ultra-fast transfer relay
  • High efficiency
  • Control by digital signal processor (DSP)

Electronic protection functions


  • Deep discharge protection
  • Battery overvoltage shutdown
  • Overtemperature and overload protection
  • Short circuit protection
  • Reverse polarity protection by internal fuse (except Steca Xtender XTH 3000)
  • Acoustic alarm at deep discharge or overheating



  • 5 LEDs show operating states




  • Main switch
  • Adjustable load detection



  • Compliant with European Standards (CE)
  • RoHS compliant

Characterisation of the operating performance 

System voltage 


Continuous power 

2500 VA 

Power 30 min. 

3000 VA

Power 5 sec. 

7500 VA 

Max. efficiency 

93 % 

Own consumption standby / ON 

1,4 W / 1,4W 

Input side 

Input voltage 

< 265 V AC (adjustable : 150 V AC ... 265 V AC) 

Max. current on transfer system 

50 A 

Battery side 

Battery voltage 

9,5 V ... 17 V 

AC output side 

Output voltage

230 V AC +/-2 % / 190 V AC ... 245 V AC (pur sine wave) / 120 V AC  

Output frequency

50 Hz +/-0.05 % (crystal controlled) 

Load detection (standby) 

2 W ... 25 W 

Operating conditions 

Ambient temperature 

-20 °C ... +55 °C 

Fitting and construction 

Degree of protection 

IP 20

Dimensions (X x Y x Z) 

300 x 497 x 250 mm 


34 kg 





All range Steca Xtender XTH optionnal (above)

3000-12, 5000-24, 6000-48, 8000-48


(Datasheet on download)


Data sheets and documentation


Voltage12 V à 48 V
Power3000 VA à 8000 VA
Monophasé / TriphaséTriphasé
Inverter power3000VA