1. Introduction
The PowMr Hybrid Solar Inverter is an all-in-one solution that combines inverter output and bypass output functions. It is designed to efficiently convert DC power from batteries or solar panels into stable AC power for your appliances. This inverter supports charging from both photovoltaic (solar) and AC power sources and features a built-in MPPT (Maximum Power Point Tracking) solar charger controller for optimized solar energy harvesting. It is compatible with various battery types, including lead-acid and lithium batteries, and incorporates multiple protection functions to ensure system safety and stability.
Video: PowMr Hybrid Solar Inverter Product Introduction
2. Key Features
- Pure Sine Wave output for sensitive electronics.
- Available in 3000W and 5000W output power models.
- 110V/120V AC output.
- Supports single-phase devices.
- Fast switching time of 10ms.
- Compatible with 24V/48V lithium-ion and lead-acid batteries, with user-definable settings.
- Max. PV charging current up to 80A.
- Max. AC charging current up to 40A.
- Max. hybrid charging current up to 80A.
- Wide AC input voltage range of 90~140Vac.
- Wide PV operating voltage range of 120~450Vdc.
- Single MPPT tracker with 99.9% efficiency.
- Multiple communication interfaces: USB/CAN/RS485 (WiFi/GPRS)/Dry node control.
- Durable finish with high anti-corrosion properties.
- Effective forced air cooling for stable operation.
- Built-in lithium battery activation function.
3. Setup
3.1. General Overview
Figure 1: 5000W Off-Grid Solar Inverter Overview
Figure 2: 3000W Solar Inverter Overview
3.2. Wiring Diagram
Refer to the following diagrams for proper wiring of your solar inverter system. Ensure all connections are secure and follow local electrical codes. Always connect the PE (Protective Earth) protective conductor first.
3.2.1. 3000W Model Wiring
Figure 3: Wiring Diagram for 3000W Model
3.2.2. 5000W Model Wiring
Figure 4: Wiring Diagram for 5000W Model
3.3. Battery Compatibility
The inverter is compatible with both lead-acid and lithium batteries. It supports various types of lead-acid batteries including AGM, GEL, Flooded (FLD), and Sealed Lead-Acid (SLD), as well as Lithium (LI) batteries. Ensure your battery type is correctly configured in the inverter settings.
Figure 5: Compatible Battery Types
3.4. PV Input Configuration
The inverter features a wide photovoltaic input range of 120-450Vdc. The maximum PV input power is 4000W for the 3KW model and 5500W for the 5KW model. Ensure your solar panel array's voltage and power are within these limits for optimal performance.
4. Operating Instructions
4.1. Charging Modes
The inverter can be configured with four charging modes, allowing flexibility in how your batteries are charged:
- Solar priority charging
- Utility priority charging
- Solar and Utility charging
- Only Solar charging
The maximum hybrid charging current (AC charger + PV charger) is 80A.
Figure 6: Hybrid Charging Current
4.2. AC Output Modes
The inverter supports four AC output modes to suit different application scenarios:
- Utility priority output
- Inverter priority output
- Battery priority output
- Energy-saving mode
4.3. Lithium Battery Activation
The inverter features a built-in lithium battery activation function, simplifying the setup process for lithium-ion battery systems.
4.4. Monitoring and Control
The inverter can be monitored and controlled remotely via the SmartESS App. A Wi-Fi/GPRS data acquisition module is required for this functionality and needs to be purchased separately.
Figure 7: SmartESS App Monitoring Setup
4.5. Power Saving Mode
The power saving mode activates when the load is less than or equal to 50W, helping to conserve energy when demand is low.
5. Maintenance
To ensure the longevity and optimal performance of your PowMr Hybrid Solar Inverter, regular maintenance is recommended:
- Keep the inverter in a clean, dry, and well-ventilated area.
- Ensure proper airflow around the unit; the effective forced air cooling system relies on unobstructed vents.
- Periodically check all electrical connections for tightness and signs of corrosion.
- Clean the exterior of the inverter with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Monitor the LCD screen and LED indicators for any error messages or unusual operating status.
Figure 8: Protection Functions and Indicators
6. Troubleshooting
If you encounter issues with your inverter, consider the following general troubleshooting steps:
- No Power Output: Check battery connections, AC input (if applicable), and solar panel connections. Ensure the inverter is turned on.
- Overload Warning: Reduce the connected load. The inverter has overload protection.
- Battery Not Charging: Verify solar panel input voltage and current. Check AC input if charging from utility. Ensure battery type settings are correct.
- Unusual Noises: While the inverter has forced air cooling, excessive or unusual noises may indicate a problem. Consult the full manual or contact support.
For detailed error codes and specific solutions, please refer to the complete user manual provided with your product.
7. Specifications
| Category | Specification | POW-LVM3K-24V | POW-LVM5K-48V |
|---|---|---|---|
| AC Mode | |||
| Rated input voltage | 110/120Vac | ||
| Input voltage range | (90Vac-140Vac) | ||
| Frequency | 50Hz/ 60Hz (auto-sensing) | 50Hz/ 60Hz (auto-sensing) | |
| Overload/short-circuit protection | Circuit breaker | ||
| Efficiency | >95% | ||
| Maximum bypass overload current | 40A | 63A | |
| Inverting Mode | |||
| Output voltage waveform | Pure sine wave | ||
| Rated output power (VA) | 3000 | 5000 | |
| Rated output power (W) | 3000 | 5000 | |
| Rated output voltage (Vac) | 120Vac | 120Vac | |
| Maximum Efficiency | >92% | >90% | |
| Peak power | 6000VA | 10000VA | |
| Loaded motor capability | 2HP | 4HP | |
| Rated battery input voltage | 24V (Minimum starting voltage 22V) | 48V (minimum start voltage 44V) | |
| Power saving mode | Load ≤50W | ||
| AC Charging | |||
| Battery type | Lead acid or lithium battery | ||
| Maximum charge current (can be set) | 0-40A | ||
| Charge voltage range | 20–33Vdc | 40–60Vdc | |
| Breaker specification | 40A | 63A | |
| Solar Charging | |||
| Maximum PV open-circuit voltage | 450Vdc | 500Vdc | |
| PV operating voltage range | 120~450Vdc | 120-500Vdc | |
| Battery voltage range | 20~33Vdc | 40-60Vdc | |
| Maximum input power | 4000W | 5500W | |
| Charge current range of solar energy (settable) | 0-80A | ||
| Authentication Specification | |||
| EMC authentication grade | EN61000 | ||
| Noise | ≤60dB | ||
| Communication interface | USB/RS485 (WiFi/GPRS)/dry node control | ||
| Dimension (L*W*D) | 378mm*280mm*103mm | 426mm*322mm*126mm | |
| Weight (kg) | 8 | 11.5 | |
8. Warranty and Support
The PowMr Hybrid Solar Inverter comes with an 18-month warranty. For technical support, warranty claims, or further assistance, please contact your vendor or refer to the official PowMr website.
9. User Tips
- Output Voltage: Note that this inverter provides 110/120V AC output. If 220V output is required for your specific application, a different model or an additional step-up transformer may be needed.
- Wi-Fi/GPRS Module: For remote monitoring and control via the SmartESS App, remember that the Wi-Fi/GPRS data acquisition module is an optional accessory and must be purchased separately.
- Battery Type Configuration: Always ensure the correct battery type (Lead-acid or Lithium) is selected in the inverter settings to prevent damage and ensure efficient charging.
10. Applications
The PowMr Hybrid Solar Inverter is versatile and suitable for a wide range of applications, providing reliable power wherever needed:
Figure 9: Powering RVs and Homes
Figure 10: Diverse Application Scenarios
