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12V Solar Inverter Chargers

Studer Xtender XTH "XTH 3000-12" 12V Inverter Charger 2500VA - 140A 230V~50Hz

Studer Xtender XTH "XTH 3000-12" 12V Inverter Charger 2500VA - 140A 230V~50Hz

£3,876.54 £3,230.45 (ex. VAT)
Stock Status: In Stock

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

The inverter/charger has a continuous power rating of 2.5kVA up to an ambient temperature of 40°C. In addition, it has a 30 minute power rating of 3kVA, and can deliver 7.5kVA 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.

The battery charge current can be adjusted between 0 and 160Adc. 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 (uninterruptible 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.

Key Features


• 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
• 5-year warranty

Technical Specification


Country of Manufacture Switzerland
Dimensions (mm) 500 x 300 x 230
Grid Voltage 230V
IP Rating IP20
Power (Watts) N/A
SKU XTH 3000-12
Voltage 12V
Weight (kgs) 34
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