Overview
The PowMr POW-SunSmart SP5.2K is a 48V pure sine wave solar inverter with built-in MPPT charging, designed for home solar systems and parallel operation. It provides 5200W (5200VA) rated output power, supports up to 6 units in parallel, and accepts PV input up to 500Vdc open-circuit with a 100A MPPT charging current.
Key Features
- Pure sine wave inverter output: Pure sine wave, rated output power 5200VA/5200W; peak power 10400VA; power factor 1.
- AC output settings: 120Vac rated output voltage (100/105/110Vac settable). Supports single-phase/split-phase/three-phase devices (split-phase/three-phase available in a parallel system).
- Parallel capability: Maximum number of parallel connections: up to 6 inverters.
- MPPT PV charging: Maximum PV input power 6000W; maximum PV open circuit voltage 500Vdc; PV operating voltage range 120-500Vdc; MPPT voltage range 120-450Vdc; maximum PV input current 22A; PV charging current range (settable) 100A.
- AC charging + hybrid charging: Maximum charge current (settable) 0-40A; max charger current (AC charger + PV charger, settable) 100A; charge voltage range 40–58Vdc.
- Charging modes (4): Solar First; Mains First; Hybrid Charge; Only Solar.
- Battery compatibility: Lead acid or lithium battery; rated battery input voltage 48V (minimum starting voltage 44V).
- Protections & cooling: Overload/short circuit protection by circuit breaker; AC reverse protection available; forced air cooling with variable-speed fan.
- Display: Backlit LCD screen display with 3 LED indicators for system data and operating status.
- Communication: USB/RS485(WiFi/GPRS)/Dry contact control.
For pre-sale system checks (PV string voltage/current, battery type, and parallel configuration planning), contact https://tsolar.top/ or service@tsolar.top.
Specifications
| Brand | PowMr |
| Model | POW-SunSmart SP5.2K |
| Certification | CE (IEC62109-1) |
| EMC certification level | EN61000 |
| Is Smart Device | Yes |
| Origin | Mainland China |
| High-concerned chemical | None |
| Output type | SINGLE |
| Waveform | Pure sine wave |
| Number of parallel | Up to 6 |
| Size | 54 x 45 x 22 |
| Weight | 15KG |
| AC Mode | |
| Rated input voltage | 110/120Vac |
| Output frequency | 50Hz/ 60Hz (Auto detection) |
| Overload/short circuit protection | Circuit breaker |
| Efficiency | >95% |
| AC reverse protection | Available |
| Inverter Mode | |
| Rated output power | 5200VA/5200W |
| Rated output power (text spec) | 5200W |
| Peak power | 10400VA |
| Power factor | 1 |
| Rated output voltage | 120Vac Rated output voltage (100/105/110Vac Settable) |
| Maximum efficiency | >92% |
| Loaded motor capability | 4HP |
| Battery | |
| Battery type | Lead acid or lithium battery |
| Rated battery input voltage | 48V (Minimum starting voltage 44V) |
| AC Output (Grid) | |
| Rated output power | 5200W |
| Max. apparent power | 5200VA |
| Max. output current | 41.7A |
| Rated voltage | 120Vac |
| AC Charging | |
| Maximum charge current (settable) | 0-40A |
| Charge voltage range | 40–58Vdc |
| Circuit breaker specifications | 63A |
| Overcharge protection | Alarm and turn off charging after 1 minute |
| PV Charging | |
| Maximum PV open circuit voltage | 500Vdc |
| PV operating voltage range | 120-500Vdc |
| MPPT voltage range | 120-450Vdc |
| Maximum PV input power | 6000W |
| Maximum PV input current | 22A |
| PV charging current range (settable) | 100A |
| Hybrid Charging (AC charger + PV charger) | |
| Max charger current (settable) | 100A |
| Environmental | |
| Operating temperature range | -10°C ~ 55°C |
| Storage temperature range | -25°C ~ 60°C |
| Noise | ≤60dB |
| Heat dissipation | Forced air cooling, variable speed of fan |
| Communication interface | USB/RS485(WiFi/GPRS)/Dry contact control |
Applications
- Home solar systems using a 48V battery bank (lead-acid or lithium)
- Off-grid PV + battery power systems requiring pure sine wave AC output
- Systems requiring parallel expansion up to 6 inverters for split-phase or three-phase configurations
Details

A 48V pure sine wave inverter/charger built for off-grid and hybrid solar setups, with high-voltage PV input and strong MPPT charging.

The backlit LCD and LED indicators make it easy to check PV input, battery status, and load information at a glance.

Choose from Solar First, Mains First, Hybrid Charge, or Only Solar to match your battery and backup priorities.

Supports common 48V battery types, including lead-acid (AGM/GEL/FLD) and lithium, for flexible system design.

Built-in protection functions help safeguard the inverter and connected loads during abnormal conditions.


Parallel-ready design scales up to 6 units for higher capacity systems and split-phase configurations.
