1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your ANERN AN-MSC-60A MPPT Solar Charge Controller. This device is designed to efficiently manage power flow from solar panels to various battery types in 12V or 24V systems, ensuring optimal charging and battery longevity.

Figure 1: ANERN MPPT Solar Charge Controller AN-MSC-60A front view, highlighting Max Charging Current, Max PV Input, and Battery Voltage.
2. Key Features
- Advanced MPPT (Maximum Power Point Tracking) technology with tracking efficiency no less than 99.5%.
- High conversion efficiency, reaching up to 97%.
- Super-fast maximum power tracking speed.
- Accurate identification and tracking of multi-wave peak maximum power points.
- Reliable maximum input power for PV arrays, ensuring equipment safety.
- Wide PV array maximum power point operating voltage range.
- Automatic 12V/24V system voltage identification.
- LCD display for dynamic operation data and working status.
- Multiple load control modes: Regular, Light Control, Light & Time, and Reverse Light Control.
- Supports various battery types: Sealed, GEL, Flooded, LiFePO4, and Li(NiCoMn)O2.
- Battery temperature compensation function.
- Power statistics recording function.
- External display unit and peripheral support for real-time data view and parameter setting.
- PWM function at High Voltage Disconnection (HVD) point to protect the battery.

Figure 2: High Efficiency MPPT Tracking
3. Setup and Installation
Follow these steps carefully to connect and install your solar charge controller. Ensure all connections are secure before powering on the system.
- Open the cover by gently pulling both hands down to reveal the screw terminals.
- Connect the battery cables first. Ensure correct polarity (positive to positive, negative to negative).
- Connect the photovoltaic (solar panel) cables. Ensure correct polarity.
- Connect the load cables. Ensure correct polarity.

Figure 3: Installation Steps and Terminal Access
3.1 Wiring Diagram
The following diagram illustrates the typical wiring configuration for the MPPT solar charge controller in a solar power system. Always ensure proper fusing and breaking mechanisms are in place for safety.

Figure 4: System Wiring Diagram
3.2 Heat Dissipation
The controller features a die-cast aluminum structure designed for efficient heat dissipation, ensuring continuous and stable charging performance.

Figure 5: Heat Dissipation Mechanism
4. Operating Instructions
4.1 Load Operating Modes
The controller offers four distinct load operating modes. The default setting is 24-hour operation. You can select the desired mode based on your application needs.

Figure 6: Load Operating Modes
- LD1 (Regular Mode): The load operates normally and can be turned on or off manually.
- LD2 (Light Control Mode): The load automatically turns on at dusk and off at dawn.
- LD3 (Light & Time Control Mode): The load operates for a set number of hours after dark and before dawn. The controller automatically identifies dark and light conditions based on the local environment.
- LD4 (Reverse Light Control Mode): The load automatically turns on at dawn and off at dark.
4.2 Interface Description (LCD and Buttons)
The LCD provides real-time status and data. The buttons allow for navigation and parameter adjustments.

Figure 7: LCD Interface and Button Functions
| Item | Icon | Status |
|---|---|---|
| PV array | ☀️ / 🌙 | Day / Night |
| ➡️ | Charging | |
| Battery | 🔋 | Uncharged / Battery capacity |
| LiPo / LiFe | Battery type | |
| Load | 💡 | Load on / Load off |
| Button meaning | Button pattern | Button function |
|---|---|---|
| MENU | 🔽 | Short press to switch down; press and hold for 3 seconds to enter the next interface |
| SET | 🔼 | Short press to switch up; press and hold for 3 seconds to exit without saving |
5. Maintenance
To ensure optimal performance and longevity of your MPPT Solar Charge Controller, regular maintenance is recommended:
- Keep the controller clean and free from dust and debris.
- Ensure proper ventilation around the unit to facilitate heat dissipation.
- Periodically check all wiring connections for tightness and corrosion.
- Inspect the solar panels and battery terminals for any signs of damage or wear.
- Monitor the LCD display for any error codes or unusual readings.
6. Troubleshooting and Protection Functions
The controller is equipped with several protection functions to safeguard your system. Understanding these can help in basic troubleshooting.

Figure 8: Controller Protection Functions
- Solar Panel Reversed: The controller is protected if the solar panel polarity is reversed, especially if the battery is not connected.
- Battery Reversed: The controller is protected if the battery polarity is reversed, particularly if the PV array is unconnected.
- Battery Over-Voltage: Protection activates if the battery voltage reaches the over-voltage point, preventing damage from overcharging.
- Battery Over-Discharge: Protection activates if the battery voltage drops below the under-voltage point, preventing deep discharge.
- Over-Load: Protection engages if the load current exceeds the rated current, preventing damage to the controller and connected devices.
If you encounter issues not covered here, please consult the full product documentation or contact customer support.
7. Specifications
Below are the detailed technical specifications for the ANERN AN-MSC-60A MPPT Solar Charge Controller.
| Parameter | 20A | 30A | 40A | |
|---|---|---|---|---|
| Input | ||||
| Maximum input power | 12V | 260W | 390W | 520W |
| 24V | 520W | 780W | 1040W | |
| Max. open voltage of solar panel | 60V | 100V | ||
| System rated voltage | 12V/24V Auto recognized | |||
| Battery voltage range | 8V-32V | |||
| Output | ||||
| Rated discharge current | 20A | 30A | ||
| Battery type | User default, Sealed, Flooded, GEL, LiFePO4, Li(NiCoMn)O2. | |||
| Equalized charging voltage | Maintenance-free lead acid battery 14.6V, GEL: No: Lead acid flooded battery: 14.8V | |||
| Absorption charging voltage | Maintenance-free lead acid battery 14.4V, GEL: 14.2V; Lead acid flooded battery: 14.6V | |||
| Floating charging voltage | Maintenance-free lead-acid battery, GEL, Lead acid flooded battery: 13.8V | |||
| Low voltage re-connection (LVR) | Maintenance-fee lead acid battery, GEL, Lead acid flooded battery: 12.6V | |||
| Low voltage disconnection (LVD) | Maintenance-fee lead acid battery, GEL, Lead acid flooded battery: 10.8V | |||
| Static loss | ≤50mA | |||
| High voltage disconnection (HVD) | Lead acid battery 16V (24V x 2) | |||
| Duration of absorption charging | 2 Hours | |||
| Light control voltage | 5V/10V | |||
| Charge loop voltage drop | ≤0.2V | |||
| LCD Temperature | -20°C~+70°C | |||
| Operating Temperature | -20°C~+55°C | |||
| Storage Temperature | -30°C~+80°C | |||
| Working humidity | ≤90% No condensation | |||
| Protection class | IP30 | |||
Table 1: Technical Specifications
8. User Tips
No specific user tips were available from reviews or Q&A for this product at this time. Always refer to the detailed instructions for optimal performance.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or refer to the official product website. Keep your purchase receipt for warranty claims.





