
Voltronic Axpert WP 1.5KW Hybrid Solar Inverter
- Selectable Voltage Range:170-280 VAC (For Personal Computers)
- AC Voltage Regulation (Batt. Mode):230VAC ±5%

The Axpert WP 4KW is a hybrid solar inverter rated Axpert WP 4KW.
In stock
The Axpert WP 4KW is a hybrid solar inverter rated Axpert WP 4KW. Every figure on this page is read from the manufacturer's manual for the Axpert WP series.
Specifications last updated 18 August 2026
| Selectable Voltage Range | 170-280 VAC (For Personal Computers) |
|---|---|
| AC Voltage Regulation (Batt. Mode) | 230VAC ±5% |
| Efficiency (Peak) | 91% |
| Maximum PV Input Current | 18A x 1 |
| MPP Range @ Operating Voltage | 90~450 VDC |
| Communication Interface | RS232/RS485(BMS)/WiFi |
| LCD Display | 2.5' Graphical LCD |
| Ingress Protection | IP65 |
| Rated Power | 4000VA/4000W |
| Surge Power | 8000VA |
| Maximum PV Array Power | 6000W |
| Nominal PV Voltage | 320VDC |
| Start up Voltage | 120VDC |
| Transfer Time | 10 ms (For Personal Computers); 20 ms (For Home Appliances |
| Floating Charge Voltage | 27 VDC |
| Waveform | Pure sine wave |
| Compliance Safety | CE, IEC62116, IEC 61727, IEC61683 |
| Solar Charger type | MPPT |
| Maximum PV Array Open Circuit Voltage | 500 VDC |
| Net Weight (kgs) | 10.5 |
|---|
| 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 Axpert WP 4KW 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 Axpert WP 4KW takes up to 6000W 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 WP 4KW works with a 320VDC bank.