
Voltronic Axpert KING II TWIN 6KW Solar Charge Controller
- Input Voltage Waveform:Sinusoidal
- Nominal Input Voltage:230Vac
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Buy Now — Voltronic Axpert KING II TWIN 6KW Solar Charge Controller
The Axpert KING II TWIN 6.2KW is a solar charge controller rated 6.2KW.
In stock
The Axpert KING II TWIN 6.2KW is a solar charge controller rated 6.2KW. Every figure on this page is read from the manufacturer's manual for the Axpert KING II TWIN series.
Specifications last updated 17 August 2026
| Input Voltage Waveform | Sinusoidal |
|---|---|
| Nominal Input Voltage | 230Vac |
| Low Loss Voltage | 176Vac±7V |
| Low Loss Return Voltage | 186Vac+7V |
| High Loss Voltage | 280Vac±7V |
| High Loss Return Voltage | 270Vac±7V |
| Max AC Input Voltage | 300Vac |
| Nominal Input Frequency | 50Hz/60Hz (Auto detection) |
| Low Loss Frequency | 46(56)±1Hz |
| Low Loss Return Frequency | 46.5(57)±1Hz |
| High Loss Frequency | 54(64)±1Hz |
| High Loss Return Frequency | 6.2KW |
| Power Factor | >0.98 |
| Efficiency (Line Mode) | 93% ( |
| Transfer Time | InverterBypass 4ms |
| Floating Charging Voltage | 54Vdc |
| Communication | RS232 and Wi-Fi |
| Overcharge Protection | Charging Algorithm |
| Bypass Mode | 6.2KW |
| Storage temperature | -15°C~ 60°C |
|---|---|
| Humidity | 5% to 95% |








Peak efficiency is 93% (. Whatever is not converted leaves as heat, so the Axpert KING II TWIN 6.2KW needs clear air around it and a mounting spot that is not the hottest wall in the building.
Over RS232 and Wi-Fi. Those are the ports this unit publishes, and any monitoring or logging you plan has to go through one of them.