Voltronic Power Axpert MAX E Duplex 11K

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

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

An 11000W off-grid inverter whose two independent 27A PV inputs let one Duplex 11K carry a 5500W x 2 array across two roof faces, each string starting at 80V ±5Vdc.

  • AC Voltage Regulation (Batt. Mode): 230VAC ± 5%
  • Surge Power: 22000VA
  • Efficiency (Peak): 93%
  • Transfer Time: 10ms / 20ms
AED 4,638incl. 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 E Duplex 11K features

  • Two independent PV inputs at 27A each

    Each of the two PV inputs accepts 27A, 40A maximum, so an 11000W array can be split 5500W x 2 instead of being forced onto one tracker.

  • 11000W rated output with 22000VA surge

    The Duplex 11K delivers 11000W continuously and absorbs a 22000VA surge, holding a sinusoidal waveform on utility or generator input.

  • 150A charging into a 48 VDC bank

    Charge current reaches 150A from solar and 150A from AC into a 48 VDC bank, on a 3-step charging curve with 54Vdc float and 63Vdc overcharge cutoff.

  • Output imbalance under 5% at 100% load

    Output imbalance stays below 5% at 100% load and DC offset at 100mV or less, with regulation of 230VAC ± 5% in battery mode.

  • 90Vdc-450Vdc MPPT with a 500Vdc ceiling

    The MPPT tracks from 90Vdc to 450Vdc, tolerates 500Vdc open circuit and each string begins working at 80V ±5Vdc.

  • Six units in parallel, 18.4 kg each

    Up to 6 units run in parallel over USB/RS232/RS485/WiFi/Dry-contact, each unit 18.4 kg and 432.5 x 553.6 x 147.4 mm, rated -10°C to 50°C.

About the Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX E Duplex 11K

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX E 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 E 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 27 March 2026

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

Electrical(58)

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
Power Unbalance Ratio<5% 100% Load
Transfer time in parallel modeMax 50ms
Max parallel numbers6
DC Offset≤100mV
High DC Cut-off Voltage63Vdc
High DC Recovery Voltage61Vdc
Peak Efficiency93%
Battery56.4Vdc
Charging Current150A UPS
DC VoltageDC Offset ≦100mV Power Limitation 55Vdc
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
Start-up Voltage80V +/- 5Vdc Power Limitation PV Current MPPT temperature 75° 80°
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
Communication InterfaceUSB/RS232/RS485/WiFi/Dry-contact
Compliance SafetyCE

Mechanical(2)

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

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 E Duplex 11K?

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

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

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

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

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

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

The Voltronic 11 kW Off-Grid Solar Inverter Axpert MAX E 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 E Duplex 11K regulate voltage?

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

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

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

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

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

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

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

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