Overview
The PowMr 4.2kW off-grid pure sine wave inverter charger combines DC-to-AC inversion with an MPPT solar charge controller for solar system applications. It supports operation on 12V or 24V battery systems (different rated power levels) and provides single-phase 230Vac output with 50Hz/60Hz auto sensing.
Key Features
- Rated output power: DC12V-2300VA/2300W; DC24V-4200VA/4200W
- MPPT solar charging: maximum PV array power 4000W; MPPT range @ operating voltage 55~500VDC; maximum PV array open circuit voltage 500VDC
- Maximum charge current: 100A
- Maximum PV input current: 18A
- Charging modes: Only Solar, Solar First, Solar & Utility
- Output modes: SUB, SBU, MKS
- Communication interfaces: RS232; RS485/BMS; WiFi (as listed)
- Protections (as listed): overload, overvoltage, undervoltage, overtemperature, short circuit, battery reverse polarity
- Auto-restart during AC power recovery (as described)
For pre-sales compatibility checks or setup support, contact https://tsolar.top/ or service@tsolar.top.
Specifications
| Brand | PowMr |
| Certification | CE |
| Type / Features | Hybrid Inverter; MPPT Inverter; 4.2KW Solar Inverter |
| Inverter model (spec table) | POW-HVM4.2K-24V-D |
| Model number (listing) | POW-LVM3.6M-24V-D |
| Output type | Single |
| Waveform | Pure Sine Wave |
| Rated output power | DC12V-2300VA/2300W; DC24V-4200VA/4200W |
| Output voltage | 230Vac |
| Output frequency | 50Hz/60Hz |
| Output current (listing) | 100A |
| Surge power | 4600W (12V); 8400W (24V) |
| Peak efficiency (battery to inverter) | 94% |
| Transfer time | 10ms (For Personal Computers); 20ms (For Home Appliances) |
| AC input voltage | 230VAC |
| Selectable voltage range | 170~280VAC (For Personal Computers); 90~280VAC (For Home Appliances) |
| Frequency range | 50 Hz/60Hz (Auto Sensing) |
| Battery voltage | 12V / 24V |
| Floating charge voltage | 13.5V (12V); 27V (24V) |
| Overcharge protection | 16VDC (12V); 32VDC (24V) |
| Maximum charge current | 100A |
| Maximum PV array power | 4000W |
| MPPT range @ operating voltage | 55~500VDC |
| Maximum PV array open circuit voltage | 500VDC |
| Maximum PV input current | 18A |
| Communication interface | RS485/RS232 BMS/WIFI |
| Humidity | 5% to 95% Relative Humidity (Non-condensing) |
| Operating temperature | -20°C to 55°C |
| Storage temperature | -20°C to -60°C |
| Size | 110x334x423mm |
| Weight | 9 |
| Is smart device | Yes |
| Customized | Yes |
| High-concerned chemical | None |
| Origin | Mainland China |
| Brand name (listing) | NONE |
Applications
- Off-grid solar power systems requiring 230Vac pure sine wave output
- Setups with selectable charging (Only Solar / Solar First / Solar & Utility) and selectable output modes (SUB / SBU / MKS)
- Monitoring and integration scenarios using RS232 or RS485/BMS communication (and WiFi as listed)
Details

The PowMr POW-HVM4.2K-24V-D combines a pure sine wave inverter with an MPPT solar charge controller for off-grid systems.

Multiple communication interfaces support monitoring and integration, including RS232 and RS485/BMS options (model dependent).

Choose between Only Solar, Solar First, or Solar & Utility charging to match your energy priorities.

Built-in protections help safeguard the inverter and battery bank during common fault conditions.

Ideal for home off-grid solar setups where solar can be prioritized and utility used as backup when needed.

Battery configuration changes output rating—12V uses a parallel battery setup, while 24V uses a series battery setup.
