Voltronic Power Axpert MAX II Duplex 11K

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

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

Discover the Axpert MAX II Duplex 11K inverter by Voltronic Power with 11000VA/11000W rated 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 3,200incl. 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 Duplex 11K features

  • Two independent AC power sources

    Two independent AC power sources connected and switched automatically

  • Status indication with RGB lights

  • Maximum PV input current 27A

  • Adjustable charging current for two

    Adjustable charging current for two different power sources via LCD operation and mobile APP

  • Built-in Wi-Fi for mobile monitoring

    Built-in Wi-Fi for mobile monitoring (Android/iOS App is available)

  • Supports USB On-the-Go function

  • Replaceable fan design for ease

    Replaceable fan design for ease of maintenance

  • Battery independent design

  • Configurable AC/PV output usage timer

    Configurable AC/PV output usage timer and prioritization

  • 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 Duplex 11K

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 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 147.4 x 432.5 x 553.6 and weighs 18.4. 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 Duplex 11K is certified to CE and is backed by a 2-year manufacturer warranty from Voltronic Power. Its published specifications also list Circulation Current under No Load Condition of Max 2A, High Loss Frequency of 65±1Hz and High Loss Return Frequency of 63±1Hz.

Specifications last updated 23 July 2026

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

Electrical(60)

Circulation Current under No Load ConditionMax 2A
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
Parallel KitYES
Parallel communicationCAN
Start-up Voltage80V +/- 5Vdc
Transfer time in parallel modeMax 50ms
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%
Battery56.4Vdc
Charging Current150A UPS
Cold Start Voltage46.0Vdc
DC VoltageDC Offset ≦100mV Power Limitation 50Vdc
Efficiency>95% ( Rated R load Line Mode
Floating Charging Voltage54Vdc
Input Voltage WaveformSinusoidal (utility or generator) Nominal
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
Maximum PV Array Power11000W (5500W x 2)
MPPT Range @ Operating Voltage90 – 450 VDC
Maximum PV Array Open Circuit Voltage500 VDC
Maximum PV Input Current27A x 2 (MAX 40A)
Maximum Solar Charge Current150A
Maximum AC Charge Current150A
Maximum Charge Current150A
Compliance SafetyCE
Selectable Voltage Range170-280 VAC (For Personal Computers)

Mechanical(3)

Dimension, D x W x H (mm)147.4 x 432.5 x 553.6
Net Weight (kgs)18.4
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(1)

  • CE

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 Duplex 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 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 Duplex 11K operate on?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 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 Duplex 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 11K measures 147.4 x 432.5 x 553.6 and weighs 18.4.

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

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 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 Duplex 11K?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 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 Duplex 11K handle?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 11K supports a maximum PV array power of 11000W (5500W 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 Duplex 11K provide?

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 11K has a transfer time of Max 50ms and an output waveform of Sinusoidal (utility or generator) Nominal.

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

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

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

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 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 Duplex 11K units run in parallel?

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

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

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX II Duplex 11K is certified to CE, 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 Duplex 11K?

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

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