
Voltronic Axpert MAX III 12KW Off-Grid Solar Inverter
- Parallel Capability:YES, 6 units
- Selectable Voltage Range:170-280 VAC (For Personal Computers)

The Axpert MAX III 11KW is an off-grid solar inverter rated Axpert MAX III 11KW.
In stock
The Axpert MAX III 11KW is an off-grid solar inverter rated Axpert MAX III 11KW. Every figure on this page is read from the manufacturer's manual for the Axpert MAX III series.
Specifications last updated 18 August 2026
| Parallel Capability | YES, 6 units |
|---|---|
| Selectable Voltage Range | 170-280 VAC (For Personal Computers) |
| AC Voltage Regulation (Batt. Mode) | 230VAC ± 5% |
| Efficiency (Peak) | 93% |
| No Load Power Consumption | <75W |
| Maximum PV Array Power | 12000W (6000W x 2) |
| Maximum Charge Current | 150A |
| Communication Interface | USB/RS232/RS485/Wifi/Dry-contact |
| Compliance Safety | IEC 62109, IEC 61683, EN/IEC 61000-6-2, 61000-6-4, 61000-3-11, 61000-3-12 |
| Rated Inverter Power | 11000VA/11000W |
| Surge Power | 22000VA |
| Maximum PV Input Current | 27A x 2 (MAX. 40A) |
| Maximum Solar Charge Current | 150A |
| Maximum AC Charge Current | 150A |
| Floating Charge Voltage | 54 VDC |
| MPP Range @ Operating Voltage | 90 ~ 450 VDC |
| Maximum PV Array Open Circuit Voltage | 500 VDC |
| Waveform | Pure sine wave |
| Transfer Time | 15 ms (For Personal Computers), 20 ms (For Home Appliances) |
| DC Voltage | 12 VDC ± 5%, 100W |
| Solar Charger type | MPPT |
| Frequency Range | 50 Hz/60 Hz (Auto sensing) |
| Battery Voltage | 48 VDC |
| Overcharge Protection | 66 VDC |
| Net Weight (kgs) | 28.5 |
|---|
| Humidity | 5% to 95% |
|---|---|
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -15°C to 60°C |








Everything you need to know before buying an off-grid inverter. Power rating, MPPT specs, battery options, warranty, and common mistakes to avoid.
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Read: Solar Inverters for UAE Homes: Grid-Tie, Hybrid, and Off-Grid Options →Compare Voltronic Axpert and Must Solar off-grid inverters. Build quality, specifications, parallel capability, support network, and long-term value.
Read: Voltronic Axpert vs Must Solar Inverters: Which Platform Wins? →The Axpert MAX III 11KW takes up to 12000W (6000W x 2) of PV array. The string has to stay below 500 VDC open-circuit — that ceiling is reached on a cold bright morning, not at noon. The tracker works over 90 ~ 450 VDC, so wire the modules to land inside that window.
The Axpert MAX III 11KW works with a 48 VDC bank. It charges at up to 150A, and that current — not the bank's capacity — is what the cabling and the fuse between bank and unit have to be sized for.
Peak efficiency is 93%. Whatever is not converted leaves as heat, so the Axpert MAX III 11KW needs clear air around it and a mounting spot that is not the hottest wall in the building.