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

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

The Axpert MAX II Duplex 11K is an off-grid solar inverter rated Axpert MAX II Duplex 11K.

  • Parallel Capability: YES, 6 units
  • Selectable Voltage Range: 170-280 VAC (For Personal Computers)
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Full SpecificationsDownload datasheet (PDF)

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

The Axpert MAX II Duplex 11K is an off-grid solar inverter rated Axpert MAX II Duplex 11K. Every figure on this page is read from the manufacturer's manual for the Axpert MAX II Duplex series.

Specifications last updated 18 August 2026

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

Electrical

Parallel CapabilityYES, 6 units
Selectable Voltage Range170-280 VAC (For Personal Computers)
AC Voltage Regulation (Batt. Mode)230VAC ±5%
Efficiency (Peak)93%
MPPT Range @ Operating Voltage90-450 VDC
Maximum PV Input Current27A x 2 (MAX 40A)
Maxmum Solar Charge Current150A
Maximum Charge Current150A
Communication InterfaceUSB/RS232/RS485/WiFi/Dry-contact
Rated Power11000VA/11000W
Surge Power22000VA
Maximum PV Array Power11000W (5500W x 2)
Maximum AC Charge Current150A
Transfer Time10 ms (For Personal Computers) ; 20 ms (For Home Appliances)
DC Voltage12 VDC ±5%, 100W
Floating Charge Voltage54 VDC
Maximum PV Array Open Circuit Voltage500 VDC
WaveformPure sine wave
Compliance SafetyCE
Battery Voltage48 VDC
Overcharge Protection63 VDC
High Loss Frequency65±1Hz
High Loss Return Voltage270Vac±7V
High Loss Voltage280Vac±7V
Low Loss Frequency40±1Hz
Low Loss Return Frequency42±1Hz
Max AC Input Voltage300Vac
Nominal Input Frequency50Hz/60Hz (Auto detection) | 50Hz/60Hz (
Output Short Circuit ProtectionLine mode: Circuit Breaker (70A) Battery mode: Electronic Circuits
Parallel KitYES
Parallel communicationCAN
Start-up Voltage80V +/- 5Vdc
High DC Recovery Voltage61Vdc | 64Vdc
Low DC Cut-off Voltage44Vdc
Cold Start Voltage46.0Vdc
Input Voltage WaveformSinusoidal (utility or generator) Nominal
Overload ProtectionSurge
Output PowerFor 8KW model, when

Mechanical

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

Environmental

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

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