
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 II Duplex S Axpert Max II Duplex S 8K is a hybrid solar inverter rated Axpert Max II Duplex S 8K.
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The Axpert MAX II Duplex S Axpert Max II Duplex S 8K is a hybrid solar inverter rated Axpert Max II Duplex S 8K. Every figure on this page is read from the manufacturer's manual for the Axpert MAX II 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 | 16000VA |
| Waveform | Pure sine wave |
| Maximum PV Array Power | 8000W (4000W x 2) |
| Maximum PV Input Current | 27A x 2 (MAX 40A) |
| Maxmum Solar Charge Current | 150A |
| Maximum AC Charge Current | 120A |
| Maximum Charge Current | 150A |
| Compliance Safety | CE, NRS 097-2-1:2017 |
| Transfer Time | 10 ms (For Personal Computers) ; 20 ms (For Home Appliances) |
| DC Voltage | 12 VDC ±5%, 100W |
| Floating Charge Voltage | 54 VDC |
| Maximum PV Array Open Circuit Voltage | 500 VDC |
| Efficiency (Peak) | 93% |
| Dimension, D x W x H (mm) | 147.4x 432.5 x 553.6 |
|---|---|
| Net Weight (kgs) | 18.4 |
| 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 II Duplex S 8K takes up to 8000W (4000W 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 Axpert Max II Duplex S 8K works with a 12 VDC ±5%, 100W 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 II Duplex S 8K needs clear air around it and a mounting spot that is not the hottest wall in the building.