
Voltronic Axpert IND 1.2KW Hybrid Solar Inverter
- Selectable Voltage Range:170-280 VAC (For Personal Computers)
- AC Voltage Regulation (Batt. Mode):230VAC ± 5%

The Axpert MAX Duplex S Axpert Max Duplex S 11K is a hybrid solar inverter rated Axpert Max Duplex S 11K.
In stock
The Axpert MAX Duplex S Axpert Max Duplex S 11K is a hybrid solar inverter rated Axpert Max Duplex S 11K. Every figure on this page is read from the manufacturer's manual for the Axpert MAX Duplex S series.
Specifications last updated 18 August 2026
| Selectable Voltage Range | 170-280 VAC (For Personal Computers) 90-280 VAC (For Home Appliances) |
|---|---|
| AC Voltage Regulation (Batt. Mode) | 230VAC ± 5% |
| Surge Power | 22000VA |
| Waveform | Pure sine wave |
| Maximum PV Array Power | 11000W (5500W x 2) |
| Maximum PV Input Current | 27A x 2(MAX 40A) |
| Maxmum Solar Charge Current | 150A |
| Maximum AC Charge Current | 150A |
| Maximum Charge Current | 150A |
| Compliance Safety | CE, NRS 097-2-1:2017 |
| Transfer Time | 10 ms (For Personal Computers), 20 ms (For Home Appliances) |
| Floating Charge Voltage | 54 VDC |
| Maximum PV Array Open Circuit Voltage | 500 VDC |
| Efficiency (Peak) | 93% |
| Net Weight (kgs) | 18.4 |
|---|---|
| Dimension, D x W x H (mm) | 147.4 x 432.5 x 553.6 |
| Humidity | 5% to 95% Relative Humidity(Non-condensing) |
|---|---|
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -15°C to 60°C |








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Read: How to Monitor Voltronic Inverters and UPS via WiFi →The Axpert Max Duplex S 11K takes up to 11000W (5500W 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.
Peak efficiency is 93%. Whatever is not converted leaves as heat, so the Axpert Max Duplex S 11K needs clear air around it and a mounting spot that is not the hottest wall in the building.
Up to 150A. Size the cable and the protection between the unit and the bank on that figure, not on the average you expect to see.