Studer XTH 6000-48 Xtender Inverter Charger - 6000VA, 48V


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SKU: XTH6000-48


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Spec Sheet Picture is only for the XTH 6000-48 Model
True sine wave voltage
Reliable and silent with any kind of load
Outstanding overload capabilities
Ultra-fast transfer relay



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The Studer XTH 6000-48 Xtender Inverter Charger - 6000VA, 48V has a continuous power rating of 5kVA up to an ambient temperature of 40C. In addition, it has a 30 minute power rating of 6kVA, and can deliver 15kVA for up to 5 seconds! Thanks to this very high surge power capacity, it can supply without worries loads with a high start-up current.

With its seemingly limitless programmable functions, the XTH 6000-48 offers unequalled flexibility compared to other products on the market.

The battery charge current can be adjusted between 0 and 100Adc. The factory default settings include a battery charge curve best suited for lead acid batteries with gelled electrolyte (GEL). This battery charge curve can be easily adapted to other types of batteries including OPzS, NiFe, Lithium and Redox Flow, to name but a few.

The transfer system is active when an AC power source (generator, public grid, shore power) is available at the AC input of the Xtender. The transition between inverter and transfer mode is achieved without any power cut and allows up to 50Aac of current to pass through to the loads. Similarly, the transition between transfer and inverter mode is extremely fast (max 15ms), which makes the Xtender suitable for many UPS (uninterruptable power supply) applications.

The Smart-Boost function allows the Xtender to assist the AC source via the inverter function. This way, the currents from both sources (AC-in and inverter) are combined to deliver the energy required by big loads if the loads are more than the AC source can supply.

The injection function allows the Xtender to send energy to the grid. This function is especially useful in energy storage systems where either the excess energy is injected to the grid, or a specific current is injected at a specific time of the day.

The Xtender has two auxiliary contacts, configured by default for the automatic start of a generator and the alarm function.

In addition, the Xtender can be equipped with a remote entry, which can be used to change functions or control the system externally.

Monitoring and control onsite or remotely is possible with the RCC-02/03 remote control or with the LAN, GSM or SMS interfaces. Detailed information on all Xtender accessories can be found on the corresponding section of the website.

The Xtender communication bus is shared with the MPPT solar charge controllers of the VarioTrack and VarioString series. Inverters and charge controllers are synchronized to ensure an optimum charge of the battery and use of available energy.



  • True sine wave voltage
  • Reliable and silent with any kind of load
  • Outstanding overload capabilities
  • Smart-Boost function for assistance to the source even with difficult loads
  • Automatic reduction of peak loads (power shaving)
  • Multi-stage programmable battery charger with PFC (Power Factor Correction)
  • Stand-by level, adjustable over a large range and from a very low threshold
  • Ultra-fast transfer relay
  • Control by digital signal processors (DSP)
  • High efficiency



Power P30 / Pnom VA 6000 / 5000
Battery Voltage Unom V 48V
Transfer Current Imax A 50A
Charger Current Imax A 100A
Nominal Battery Voltage 48 Vdc
Input Voltage Range 38 - 68 Vdc
Continuous Power 25C 5000 VA
Power 30 min. 25C 6000 VA
Power 5 sec. 25C 15 kVA
Maximum Load Up to short-circuit
Asymmetric Load Up to Pcont
Load Detection (stand-by) 2 to 25 W
Maximum Efficiency 96 %
Consumption OFF/Stand-by/ON 1.8 W / 2.2 W / 22 W
Output Voltage Pure sine wave 230 Vac (+- 2 %) / 120 Vac (1)
Output Frequency Adjustable 45 - 60 Hz (1) +- 0.05 % (crystal controlled)
Harmonic Distortion < 2 %
Overload and Short-circuit Protection Automatic disconnection with 3 time restart attempt
Overheat Protection Warning before shut-off - with automatic restart
Weight 42.00 Kg
Dimensions H/W/L (mm) 230 x 300 x 500mm

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