The Axpert VM II TWIN VM II-4000 TWIN-PV 5600 is an off-grid solar inverter rated VM II-4000 TWIN-PV 5600.
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The Axpert VM II TWIN VM II-4000 TWIN-PV 5600 is an off-grid solar inverter rated VM II-4000 TWIN-PV 5600. Every figure on this page is read from the manufacturer's manual for the Axpert VM II TWIN series.
Specifications last updated 18 August 2026
| Rated Power | 4000VA/4000W |
|---|---|
| Selectable Voltage Range | 170-280 VAC (For Personal Computers) |
| AC Voltage Regulation (Batt. Mode) | 230VAC ± 5% |
| Efficiency (Peak) | 93% |
| Maximum Charge Current | 120A |
| Communication Interface | USB/RS232/RS485/Wi-Fi |
| Surge Power | 8000VA |
| Maximum PV Array Power | 5600W |
| Maximum PV Input Current | 40A |
| MPP Range @ Operating Voltage | 60-450 VDC |
| Maximum Solar Charge Current | 120A |
| Maximum AC Charge Current | 100A |
| Net Weight (kgs) | 9.5 |
|---|
| Humidity | 5% to 95% |
|---|---|
| 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 VM II-4000 TWIN-PV 5600 is rated 4000VA/4000W continuous, with 8000VA available on surge for the second a motor or a compressor starts. Size the load you actually intend to run against the continuous figure, never against the surge one.
The VM II-4000 TWIN-PV 5600 takes up to 5600W of PV array. The tracker works over 60-450 VDC, so wire the modules to land inside that window.
Peak efficiency is 93%. Whatever is not converted leaves as heat, so the VM II-4000 TWIN-PV 5600 needs clear air around it and a mounting spot that is not the hottest wall in the building.