1. Introduction and Product Overview
The MPP SOLAR LV5048 is a 5000W/48VDC off-grid solar hybrid inverter designed for use in regions utilizing 110/120V single-phase, 120V/240V split-phase, or 208V three-phase load configurations. This model is particularly suitable for off-grid applications in areas such as the US, Canada, and Puerto Rico, where 120V/240V split-phase power standards are common, eliminating the need for an external step-down transformer.
Each LV5048 unit integrates two 80A Maximum Power Point Tracking (MPPT) solar chargers and supports parallel operation for up to three units, with the parallel kit built-in. The inverter offers high programmability via its LCD menu, supporting both 50Hz and 60Hz operation, as well as dual AC or DC priority modes. It also includes a generator starter dry contact feature and comes with the WatchPower monitoring program.
A single LV5048 unit is capable of providing four distinct output types:
- 110V/120V Single Phase
- 120V/240V Split Phase
- 208V Split Phase
- 208V 3-Phase
Figure 1: Front view of the MPP SOLAR LV5048 Inverter, showing the LCD display and control buttons.
2. Safety Information and Important Notices
This unit is designed for 110V/120V/240V/208V power standards. It is NOT compatible with countries using 220-240V type power standards, such as those in Europe or Africa.
There is no UL certification for this inverter. If your local regulations or state laws require UL certification for all inverters, including off-grid or grid-tie systems, please do not purchase this product. Returns due to UL certification requirements may be subject to a maximum restocking fee of 20%.
Figure 2: Important notice regarding UL certification requirements.
Always ensure proper grounding and adhere to all local electrical codes during installation. Installation should be performed by qualified personnel.
3. Key Features
- Max Continuous Output: 5000W pure sine wave inverter.
- Battery System: 48VDC battery-based operation.
- Output Design: 120V/240V/208V output for 1-phase, split-phase, and 3-phase configurations, suitable for USA, Canada, and Puerto Rico power standards.
- Frequency Support: Both 50Hz and 60Hz load frequencies can be supported via LCD programming.
- Solar Charger: Built-in dual 2x 80A, 3-stage MPPT solar chargers, supporting up to 8KW (4KW per input) total PV array.
- PV Input: Maximum PV input open circuit voltage of 145V.
- Operating Modes: Dual AC and DC priority modes allow operation as a UPS or battery/solar inverter with backup options.
- Monitoring: Bundled monitoring software compatible with Windows, Mac, and Linux operating systems.
- Generator Compatibility: Built-in genset starter dry contact feature for use with inverter-type generators that have remote start functionality.
- Parallel Capability: Supports up to 3 units in parallel for increased capacity.
Figure 3: Overview of the LV5048's innovative features, including output voltage capabilities and main functions.
4. Product Components and Connections
The LV5048 inverter features a clear LCD display, LED indicators, and function keys on the front panel for easy monitoring and configuration. The rear panel provides all necessary connection points for power input, output, and communication.
Figure 4: System wiring concept and detailed product overview, highlighting the LCD display, LED indicators, function keys, and rear panel connections.
Rear Panel Connections:
- Circuit Breaker: For protection against overcurrent.
- AC Input (to grid): Connection for utility grid power.
- AC Output (to load): Connection for household or facility loads.
- Parallel ID: For identifying units in a parallel configuration.
- RS232 Port: Serial communication port for monitoring.
- PV Input x 2: Two separate inputs for solar panel arrays.
- Genset Starter: Dry contact for connecting to a generator's remote start.
- Power Switch: Main power control for the inverter.
- Battery Input: Connection terminals for the 48VDC battery bank.
- USB Port: For connecting to a computer for monitoring and configuration.
5. Installation and Wiring
Proper installation and wiring are crucial for the safe and efficient operation of the LV5048 inverter. Refer to the following diagrams for typical wiring configurations based on desired output voltage.
System Wiring Concept:
The inverter integrates solar power, battery storage, utility grid, and generator input to supply power to home appliances. Ensure all connections are secure and correctly polarized.
Operation Voltage Configurations:
Figure 5: Wiring diagrams for various output voltage configurations: Single Phase L1-N/L2-N = 120V, Split Phase/3-Phase L1-L2 = 208V, and Split Phase L1-L2 = 240V.
- Single Phase L1-N/L2-N = 120V: Connect L1 and L2 to the grid input, with neutral (N) connected. Output provides 120V.
- Split Phase / 3-Phase L1-L2 = 208V: Connect L1 and L2 to the grid input. Output provides 208V between L1 and L2.
- Split Phase L1-L2 = 240V: Connect L1 and L2 to the grid input. Output provides 240V between L1 and L2.
Always consult a qualified electrician for installation to ensure compliance with local codes and safety standards.
6. Operation and LCD Menu Program
The LV5048 inverter features a highly programmable LCD menu for configuring various operational parameters. Settings can typically be adjusted when the inverter is in standby mode.
Key LCD Menu Settings:
- AC Output Mode: Configure the inverter's output voltage and phase. This setting is adjustable when the inverter is in standby mode (OFF status).
- Parallel Output in Single Phase (120V): Setting 28, option 2A0.
- Support L3 Phase Output on 3-Phase Application (120V): Setting 28, option 3P1.
- Support L2 Phase Output on 3-Phase Application (120V): Setting 28, option 3P2.
- Support L3 Phase Output on 3-Phase Application (208V): Setting 28, option 3P3.
- Support L1/L2 Phase Output on Split Phase Application (120V to L2 output, 240V): Setting 28, option 2A1.
- Support L1/L2 Phase Output on Split Phase Application (208V): Setting 28, option 2A2.
Refer to the detailed user manual for a complete list of LCD menu options and their functions.
7. Specifications
The following table outlines the technical specifications for the MPP SOLAR LV5048 inverter:
Figure 6: Detailed technical specifications and certification information.
| Category | Parameter | Value |
|---|---|---|
| Inverter Output | Continuous Output Power | 5000W |
| System DC Voltage | 48VDC | |
| AC Output Voltage | 110/120VAC (Phase-Neutral) | |
| Maximum Parallel Units | Up to 3 units | |
| PV Input / Solar Charging | Max PV Input Power | 8000W (4000W each input) |
| Max PV Input Voltage (Voc) | 145VDC (open circuit) | |
| MPPT Range | 60-110VDC | |
| Number of PV Inputs | 2 | |
| Max Charging Current | 160A (80A x 2) | |
| Output Mode | Output Waveform | Pure Sine Wave |
| AC Output Mode | 120V L-N / 240V L1-L2 / 208V L1-L3 3-Phase | |
| Frequency | 50 / 60Hz, auto-sensing | |
| Max Bypass Current | 40A | |
| Efficiency & Charging | Max Efficiency | >90% |
| Max Utility Charging | 60A | |
| Max Utility + Solar Charging | 120A | |
| Max Bulk/Float Charge | 58.4V | |
| Environmental / Mechanical | Communication Port | USB / RS232 / Dry Contact |
| Operating Temperature | 0 - 50°C | |
| Operating Humidity | 0 - 90% RH (Non-condensing) | |
| Dimensions (H*W*D) | 623 x 610 x 130mm | |
| Net Weight | 30kg |
8. Monitoring Software
The LV5048 inverter includes bundled monitoring software, WatchPower, which allows users to monitor system performance and configure settings from a computer. The software is compatible with multiple operating systems.
Figure 7: Monitoring software connection via USB or RS232 cable, showing compatibility with various operating systems.
Software Features:
- Real-time system status display.
- Data logging and historical performance analysis.
- Remote configuration of inverter parameters.
- Multi-platform support (Windows, Mac, Linux).
Connect the inverter to your computer using the supplied USB or RS232 cable. Refer to the software's user guide for detailed installation and operation instructions.
9. Troubleshooting and Technical Support
Should you encounter any issues with your LV5048 inverter, follow the technical support procedure outlined below. Many common issues can be resolved by reviewing the manual or contacting support.
Technical Support Procedure:
- Problem Found: Identify the specific issue or error.
- Email Tech Support: Contact technical support with a detailed description of the problem.
- Technical Evaluation and Solution: Support will evaluate the issue and provide potential solutions.
- Return Required (if applicable): If a solution cannot be found remotely, a return may be required.
- Obtain RMA #: Secure a Return Merchandise Authorization number from support.
- Ship Package: Send the product to the designated service facility.
- Service or Refund: The product will be serviced, or a refund processed as per warranty terms.
For further assistance, please visit the customer support page at www.mppsolar.com/v3/customer-support/.
10. Warranty Information
The MPP SOLAR LV5048 inverter comes with a standard international warranty of one year from the date of purchase. For detailed warranty terms and conditions, please refer to the official MPP SOLAR website or contact customer support.
Important Note for Returns: For items shipped within the EU, there may be no import duty when shipping within the EU. However, for EU stock returns, customers cannot ship directly to Taiwan. Please contact customer support for specific instructions regarding returns from the EU. For all other international returns, customers are responsible for customs duties and taxes. Please verify your country's customs office policies to determine any additional costs before returning the product.
