1. Introduction
This ECGSOLAX 12KW Solar Hybrid Inverter is a multifunctional device designed for off-grid backup power and self-consumption applications. It integrates an MPPT solar charge controller, a high-frequency pure sine wave inverter, and a UPS function module. This inverter can operate with or without batteries and features a built-in WiFi module for remote monitoring of your PV system via mobile phone or website.
2. Key Features
- Rated power 12KW, power factor 1.
- MPPT range 60V~450V, 500Voc.
- High frequency design for small size and light weight.
- Pure sine wave AC output, compatible with 95% household appliances.
- Ability to power loads simultaneously from solar and grid power.
- CAN/RS485 communication for Battery Management System (BMS).
- Capable of working without a battery.
- Built-in WiFi for remote monitoring.
- Dual AC output.
- Comprehensive 360° protection including Short Circuit, Overcurrent, Overvoltage, Undervoltage, Overload, Reverse Charging, Over-Temperature, and Overcharge Prevention.
3. Specifications
| Attribute | Value |
|---|---|
| Brand Name | ECGSOLAX |
| Model | 12KW 48V Hybrid Solar Inverter |
| Rated Power | 12KW |
| Battery Voltage | 48V |
| Max Charging Current | 160A (MPPT) |
| PV Input Voltage (Max) | 500VDC |
| Output Voltage | 220-240VAC |
| Output Frequency | 50/60Hz |
| Output Type | DUAL (AC Output 1 Max 70A, AC Output 2 Max 40A) |
| Is Smart Device | Yes (Built-in WiFi) |
| Customization | Yes |
| Weight | 16.5KG |
| Certification | CE |
| Package Dimensions (L x W x H) | 57cm x 39cm x 16cm |
4. Setup and Installation
Before installation, ensure the inverter is placed in a well-ventilated area, away from direct sunlight, heat sources, and moisture. Ensure all connections are secure and correctly polarized.
4.1 Component Identification
- Power On/Off Switch
- AC Input Breaker
- PE (Protective Earth)
- AC Input
- AC Output 1 (Max 70A)
- AC Output 2 (Max 40A)
- PV Input 1
- PV Input 2
- COM Port
- BMS Port
- Battery Input
4.2 System Connection Diagram
The inverter can be integrated into a comprehensive solar power system. Refer to the diagram below for typical connections.
- Solar Power: Connect your solar panels to the PV Input ports (7 & 8). Ensure correct polarity and voltage within the MPPT range (60V~450V, max 500Voc).
- Utility Grid: Connect the main AC power supply to the AC Input port (4).
- Generator: If using a generator as an auxiliary power source, connect it to the AC Input.
- Battery Packs: Connect your 48V battery system to the Battery Input (11). The inverter supports various battery types including SLD, FLD, LI, AGM, GEL, and SUER. It also features battery-less operation and activation functions for dormant batteries.
- Loads: Connect your household appliances and other loads to AC Output 1 (5) and AC Output 2 (6).
- Monitoring: Utilize the built-in WiFi for remote monitoring.
Safety Note: All electrical installations should be performed by a qualified electrician in accordance with local electrical codes and regulations.
5. Operating Modes
The ECGSOLAX inverter offers flexible charging and load output modes to optimize energy management.
5.1 Charging Modes
- Solar First: Prioritizes solar power for charging batteries. Utility power is used only if solar power is insufficient.
- Utility First: Prioritizes utility power for charging batteries. Solar power is used only if utility power is unavailable.
- Solar and Utility: Uses both solar and utility power simultaneously to charge batteries, providing faster charging.
- Only Solar: Charges batteries exclusively from solar power. Utility power is not used for charging.
5.2 Load Output Working Modes
- Utility First: Prioritizes utility power to supply loads. If utility power fails, the inverter switches to battery/solar power.
- Solar First: Prioritizes solar power to supply loads. If solar power is insufficient, it switches to utility or battery power.
- SBU First (Solar-Battery-Utility): Prioritizes solar power, then battery power, and finally utility power to supply loads. This mode maximizes self-consumption of solar energy.
5.3 WiFi Monitoring
The built-in WiFi module allows for remote monitoring of your PV system. Follow the instructions provided with the inverter's software or app to connect and configure monitoring. This enables you to view real-time data, historical performance, and receive alerts on your mobile device or through a web portal.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your ECGSOLAX inverter.
- Cleaning: Keep the inverter's ventilation openings clear of dust and debris. Use a soft, dry cloth to clean the exterior. Do not use liquid cleaners.
- Connections: Periodically check all electrical connections (PV, battery, AC input/output) for tightness and signs of corrosion. Ensure they are secure.
- Environment: Ensure the installation environment remains within the specified temperature and humidity ranges. Avoid exposing the inverter to extreme conditions.
- Battery Health: If using batteries, monitor their health and charge levels regularly, especially if they are lead-acid types. Follow battery manufacturer guidelines for maintenance.
- Firmware Updates: Check the manufacturer's website or monitoring app for any available firmware updates to ensure your inverter has the latest features and bug fixes.
Warning: Disconnect all power sources (solar, utility, battery) before performing any maintenance or cleaning to prevent electric shock.
7. Troubleshooting
This section provides basic troubleshooting steps for common issues. For more complex problems, contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter not turning on | No battery connection; Battery voltage too low; Power switch off; AC input breaker tripped. | Check battery connections; Ensure battery voltage is adequate; Turn on power switch; Reset AC input breaker. |
| No AC output | Overload; Short circuit on output; Inverter fault; Battery low. | Reduce load; Check for short circuits; Check inverter display for error codes; Charge batteries. |
| Batteries not charging | No solar input; PV voltage too low/high; Charging mode incorrect; Battery fault. | Check solar panel connections; Verify PV voltage within range; Select appropriate charging mode; Inspect batteries. |
| WiFi monitoring not working | No internet connection; Incorrect WiFi settings; Inverter not communicating with module. | Check router and internet connection; Reconfigure WiFi settings on inverter; Restart inverter and WiFi module. |
8. User Tips
- Optimize Solar Input: Ensure your solar panels are clean and optimally angled towards the sun for maximum energy harvest.
- Battery Management: If using batteries, consider setting the charging and discharging parameters to prolong battery life, especially for lithium-ion batteries.
- Load Prioritization: Use the "SBU First" load output mode to maximize self-consumption of solar energy and reduce reliance on the utility grid.
- Regular Monitoring: Utilize the built-in WiFi monitoring feature to keep track of your system's performance, identify potential issues early, and optimize settings remotely.
- Professional Installation: For complex setups or if you are unsure about electrical wiring, always consult with a certified solar installer.
9. Warranty and Support
For warranty information, technical support, or service requests, please refer to the contact details provided by your retailer or the ECGSOLAX official website. Keep your purchase receipt and product serial number handy when contacting support.
This product is certified with CE, indicating compliance with European health, safety, and environmental protection standards.