Voltronic Power Axpert MAX II TWIN 11K

InvertersModel VOLTRONIC-AXPERT-MAX-II-TWIN-11K

Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K

Discover the Voltronic Power Axpert MAX II TWIN 11K inverter with 11000VA/11000W power and 230VAC regulation for efficient energy solutions.

  • Rated Power: 11000VA/11000W
  • AC Voltage Regulation (Batt. Mode): 230VAC ± 5%
  • Surge Power: 22000VA
  • Efficiency (Peak): 93%
AED 2,900incl. VAT

In stock

  • Delivered within 3 business days, door to door, to every market we serve.
  • Dispatched the same business day for an order placed before 21:00 (Dubai time), or the next business day after.
  • 2-year warranty
Full SpecificationsDownload datasheet (PDF)

Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K features

  • Increased PV power

  • Touchable button with 5" color

    Touchable button with 5" color LCD

  • Status indication with RGB lights

  • Dual outputs for smart load

    Dual outputs for smart load management

  • Built-in WiFi with APP for

    Built-in WiFi with APP for mobile monitoring and OTA firmware upgrade

  • Supports USB On-the-Go function

  • Built-in BMS communication port

  • Built-in meter calibration for optimized

    Built-in meter calibration for optimized system operation

  • Battery independent design

  • Built-in anti-dust kit

  • Built-in DC output for DC

    Built-in DC output for DC fan, LED bulb, router and so on

  • Parallel operation with 6 units

About the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K is an Off-Grid Inverter with a rated power of 11000W, making it a dependable choice for off-grid, hybrid and backup power installations. It accepts an operating voltage range of 90 VDC 450 VDC. It operates at an efficiency of >95% (Rated R load, battery full charged). Its output waveform is Sinusoidal (utility or generator) Nominal. The unit measures 158.4 x 503.6 x 530.8 and weighs 20. It is rated to operate across -10°C to 50°C, with a humidity tolerance of 5% to 95%. Monitoring and control are available over USB/RS232/RS485/WiFi/Dry-contact. The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K is certified to IEC 62109, IEC 61683, EN/IEC 61000-6-2, 61000-6-4, 61000-3-11 and 61000-3-12 and is backed by a 2-year manufacturer warranty from Voltronic Power. Its published specifications also list High Loss Frequency of 65±1Hz, High Loss Return Frequency of 63±1Hz and High Loss Return Voltage of 270Vac±7V.

Specifications last updated 23 July 2026

Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K full specifications

Electrical(60)

Efficiency (Line Mode)>95% (Rated R load, battery full charged)
High Loss Frequency65±1Hz
High Loss Return Frequency63±1Hz
High Loss Return Voltage270Vac±7V
High Loss Voltage280Vac±7V
Low Loss Frequency40±1Hz
Low Loss Return Frequency42±1Hz
Low Loss Return Voltage180Vac±7V (UPS); 100Vac±7V (Appliances)
Low Loss Voltage170Vac±7V (UPS) 90Vac±7V (Appliances)
Max AC Input Current60A
Max AC Input Voltage300Vac
Max. Charging Current150A
Max. Input Current27A x 2(MAX 40A)
Max. PV Array Open Circuit Voltage500Vdc
Nominal Input Frequency50Hz/60Hz (Auto detection)
Nominal Input Voltage230Vac
Output Short Circuit ProtectionLine mode: Circuit Breaker (70A) Battery mode: Electronic Circuits
PV Array MPPT Voltage Range90Vdc 450Vdc
Start-up Voltage80V +/- 5Vdc
Max parallel numbers6
DC Offset≤100mV
High DC Cut-off Voltage63Vdc
High DC Recovery Voltage61Vdc
Low DC Cut-off Voltage44Vdc
Nominal DC Input Voltage48Vdc
Peak Efficiency93%
BatteryReal-time Activate Battery It’s real-time action to activate battery equalization.
Charging Current150A UPS
Cold Start Voltage46.0Vdc
DC VoltageDC Offset ≦100mV Power Limitation 55Vdc
Efficiency>95% ( Rated R load Line Mode
Floating Charging Voltage54Vdc
Input Voltage WaveformSinusoidal (utility or generator) Nominal
OutputCharge Time to
Output Frequency60Hz or 50Hz Peak
Output Voltage Regulation230Vac± 5%
Overcharge Protection63Vdc Charging Algorithm 3-Step Charging Curve Time
Overload ProtectionSurge
Rated Output Power11000W
Rated Power11000W Max. PV Array Open Circuit
Safety CertificationCE
Transfer Time10ms typical (UPS);
AC Voltage Regulation (Batt. Mode)230VAC ± 5%
Surge Power22000VA
Efficiency (Peak)93%
WaveformPure sine wave
Battery Voltage48 VDC
Floating Charge Voltage54 VDC
Solar Charger TypeMPPT
Maximum PV Array Power13000W (6500W x 2)
MPPT Range @ Operating Voltage90 – 450 VDC
Maximum PV Array Open Circuit Voltage500 VDC
Maximum PV Input Current40A/27A (MAX 60A)
Maximum Solar Charge Current150A
Maximum AC Charge Current150A
Maximum Charge Current150A
Compliance SafetyIEC 62109, IEC 61683, EN/IEC 61000-6-2, 61000-6-4, 61000-3-11, 61000-3-12
Parallel KitYES
Parallel communicationCAN
Selectable Voltage Range170-280 VAC (For Personal Computers)

Mechanical(3)

Dimension, D x W x H (mm)158.4 x 503.6 x 530.8
Net Weight (kgs)20
Communication InterfaceUSB/RS232/RS485/WiFi/Dry-contact

Environmental(4)

Humidity5% to 95%
Operating Temperature Range-10°C to 50°C
Storage temperature-15°C~ 60°C
Operating Temperature-10°C to 50°C

Certifications(10)

  • IEC 62109
  • IEC 61683
  • EN 61000-6-2
  • IEC 61000-6-2
  • EN 61000-6-4
  • IEC 61000-6-4
  • EN 61000-3-11
  • IEC 61000-3-11
  • EN 61000-3-12
  • IEC 61000-3-12

Downloads & support

PDFThe manufacturer's sheet, to print or share

Frequently Asked Questions

What is the rated power of the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K has a rated power of 11000W and a surge capability of 22000 VA.

What voltage does the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K operate on?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K has a nominal voltage of 48 VDC and an operating voltage range of 90 VDC 450 VDC.

What are the physical dimensions and weight of the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K measures 158.4 x 503.6 x 530.8 and weighs 20.

What is the operating temperature range of the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K operates across -10°C to 50°C and a humidity range of 5% to 95%.

What is the efficiency of the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K has an efficiency of >95% (Rated R load, battery full charged).

What solar input can the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K handle?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K supports a maximum PV array power of 13000W (6500W x 2), a maximum solar charge current of 150A and a maximum PV array open-circuit voltage of 500 VDC.

What transfer time and output waveform does the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K provide?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K has a transfer time of 10ms typical in UPS mode (UPS) and an output waveform of Sinusoidal (utility or generator) Nominal.

How does the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K regulate voltage?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K provides a voltage regulation of 230 VAC± 5%.

What communication options does the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K offer?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K offers USB/RS232/RS485/WiFi/Dry-contact connectivity for monitoring and control.

Can multiple Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K units run in parallel?

Yes — the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K supports parallel operation (6).

What certifications does the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K have?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K is certified to IEC 62109, IEC 61683, EN/IEC 61000-6-2, 61000-6-4, 61000-3-11 and 61000-3-12, meeting recognised international standards for safety and performance.

What warranty coverage is available for the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II TWIN 11K is backed by a 2-year manufacturer warranty from Voltronic Power.

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