1. Acabatview
The EPEVER IT-NC G3 and IT-NC G3 BLE series MPPT solar charge controllers represent a new generation of solar energy management. These controllers are designed to efficiently track the maximum power point of PV arrays, ensuring optimal energy capture from solar panels under various sunlight conditions. Models with 'BLE' in their name include a built-in Bluetooth module, allowing users to monitor and set parameters conveniently via a mobile application.
Característiques principals:
- Advanced MPPT control algorithm for improved tracking and response speed, minimizing power loss.
- Independent voltage stabilization, allowing direct connection of the battery terminal to the load even without a battery.
- Compatibility with various battery types, including lithium batteries, with comprehensive protection.
- Low static power consumption design for extended system standby time.
- Functions such as charging current limit, charging power limit, and automatic reduction of charging power at high temperatures to ensure system stability.
- Waterproof and dustproof design (IP32, up to IP43 with optional white terminal cover).
- Short-circuit protection and isolated RS485 communication interface for remote monitoring via optional WiFi, Bluetooth, TCP, or 4G modules.
- Configurable communication port for reduced static power consumption.
- Tres autoadaptatiustage charging mode to extend battery service life.
- Comprehensive electronic protections: overcharge, overdischarge, PV/battery reverse polarity.
- Supports up to 6 controllers for parallel charging, enabling system capacity expansion.
- Built-in BMS communication port and CAN parallel communication port.
- Real-time data logging, event logging, and energy statistics.
- Remote switch control and dry contact output for generator control.
- All-metal die-casting shell for durability.
- Compliant with IEC62109, UL1741, and EMC (Class B) standards.

2. Aspecte i components del producte
Understanding the physical layout of your controller is essential for proper installation and operation. Below is a diagram highlighting the key components and their functions.

Identificació de components:
- Pantalla LCD
- Botó amunt
- Botó avall
- Botó Enter
- PV1 Terminal (Photovoltaic Input 1)
- PV2 Terminal (Photovoltaic Input 2)
- Terminal de bateria
- Terminal de càrrega
- Port de comunicació RS485
- Port de comunicació CAN
- Remote ON/OFF Switch Port
- Relay Port
- Sortida de contacte sec
- Port de comunicació BMS
- USB Port (for PC communication)
- Bluetooth Module (for BLE models)
- Ventiladors de refrigeració
- Forats de muntatge
3. Configuració i cablejat
Careful wiring is crucial for the safe and efficient operation of your solar charge controller. Please follow these instructions precisely.
Diagrama de cablejat general:

Notes importants sobre el cablejat:
- Ensure that the length of the battery connection cable is less than 3 meters.
- Ensure that the length of the load connection cable is less than 3 meters.
- Ensure that the length of the communication cable is less than 3 meters.
- It is recommended that the length of the PV connection cable is less than 3 meters. If the PV connection cable exceeds 3 meters, it may not meet the requirements of the EN/IEC61000-6-3 standard.
System Wiring Diagram - No Battery Mode:
When operating without a battery, the controller can be directly connected to an inverter. Ensure the inverter is connected to the battery terminals of the controller and meets the specified power conditions.

Conditions for No Battery Mode:
- High-frequency inverter: PV input power > (load output power + inverter conversion efficiency + controller conversion efficiency).
- Industrial frequency inverter: PV input power > (load output power + inverter conversion efficiency + controller conversion efficiency) × 2.
System Wiring Diagram - Battery Mode:
In systems with a battery, any inverter should be connected directly to the battery pack, not to the load terminals of the controller.

ADVERTIMENT:
If an inverter is used in a system with a battery, connect the inverter directly to the battery pack. DO NOT connect the inverter to the load terminals of the controller!
4. Instruccions de funcionament
The EPEVER IT-NC G3 series controllers are designed for user-friendly operation, offering both manual control via the integrated display and advanced monitoring/configuration through a mobile app for BLE models.
Pantalla i botons:
The LCD display provides real-time system status, including PV voltage, bateria voltage, charging current, and load status. Use the Up, Down, and Enter buttons (refer to Figure 2) to navigate menus and adjust parameters directly on the controller.
Mobile App (for IT-NC G3 BLE models):
For models equipped with a built-in Bluetooth module (e.g., IT10415NCG3BLE), download the official EPEVER mobile application. This app allows for:
- Real-time monitoring of system performance.
- Viewing historical data and energy statistics.
- Setting and modifying various control parameters.
- Firmware updates (if available).
Modes de càrrega:
The controller utilizes a self-adaptive three-stage charging mode (Bulk, Absorption, Float) to optimize battery charging and extend battery lifespan. It also features automatic power reduction during high temperatures to protect the system.
Control de càrrega:
Multiple load control modes are available, allowing users to configure when the load is powered. Refer to the controller's menu or the mobile app for specific load control settings.
Ports de comunicació:
The RS485 and CAN communication ports enable connection to external modules (WiFi, TCP, 4G) for advanced remote monitoring and system integration. The communication port can be enabled or disabled to manage power consumption.
Remote Control and Dry Contact:
The remote ON/OFF switch port allows for external control of the controller. The dry contact output can be used to trigger external devices, such as a generator, based on system conditions.
5. Manteniment
Regular maintenance ensures the longevity and optimal performance of your EPEVER solar charge controller.
- Inspecció visual: Periodically check all wiring connections for tightness and signs of corrosion. Ensure no cables are frayed or damaged.
- Neteja: Keep the controller's exterior clean and free from dust and debris. Pay special attention to the cooling fins and fan vents to ensure proper airflow.
- Ventilació: Ensure the installation area has adequate ventilation to prevent overheating. The controller's cooling fans should operate freely.
- Actualitzacions de firmware: For BLE models, regularly check for and apply any available firmware updates via the mobile app to ensure the controller has the latest features and bug fixes.
- Salut de la bateria: Superviseu l'estat i el volum de la bateriatage regularly. Ensure battery terminals are clean and secure.
6. Solució De Problemes
This section provides guidance on common issues you might encounter with your solar charge controller.
Problemes comuns i solucions:
- Sense alimentació/Pantalla apagada:
- Comproveu les connexions de la bateria i assegureu-vos que estiguin ben fixades i polaritzades.
- Comproveu el volum de la bateriatage està dins del rang de funcionament del controlador.
- Inspeccioneu els fusibles o els interruptors automàtics del circuit de la bateria.
- No Charging from PV:
- Ensure PV panels are receiving adequate sunlight.
- Check PV array connections for proper polarity and tightness.
- Verify PV input voltage is within the controller's MPPT operating voltage gamma.
- Inspect fuses or circuit breakers in the PV circuit.
- La càrrega no funciona:
- Comproveu les connexions de càrrega i assegureu-vos que estiguin ben fixades.
- Verify load current does not exceed the controller's rated load current.
- Check load control settings on the controller or mobile app to ensure the load is enabled.
- Assegureu-vos que la bateria voltage està per sobre del baix voltage disconnect (LVD) threshold.
- Bluetooth Connection Issues (BLE models):
- Assegureu-vos que el Bluetooth estigui habilitat al vostre dispositiu mòbil.
- Make sure the controller is within range of your mobile device.
- Restart the mobile app and try reconnecting.
- Verify the controller's Bluetooth module is active (refer to the display or specific settings).
- Sobreescalfament:
- Ensure the controller is installed in a well-ventilated area.
- Clear any obstructions from the cooling fins and fan vents.
- Reduce system load or PV input if consistently overheating in extreme conditions.
If you encounter persistent issues not covered here, please consult the full user manual (if available) or contact EPever customer support.
7. Especificacions
The following table details the technical specifications for the EPEVER IT-NC G3 series MPPT solar charge controllers.

| Paràmetre | IT10415NCG3BLE | IT10420NCG3 |
|---|---|---|
| Vol. nominal de la bateriatage | 12/24/48VDC or Auto | |
| Volum de funcionament del controladortage Rang | 8-62V | |
| Tipus de bateria | AGM (Default) / Gel / Flooded / User / LiFePO4 / Li(NiCoMn)O2 | |
| Corrent de càrrega/descàrrega nominal | 100A | |
| Potència de càrrega nominal | 1,300W/12V; 2,600W/24V; 5,200W/48V | 1,300W/12V; 2,600W/24V; 5,200W/48V |
| Potència de càrrega màxima | 1,300W/12V; 2,600W/24V; 5,200W/48V | 1,300W/12V; 2,600W/24V; 5,200W/48V |
| Corrent de càrrega puntuable | 100A | |
| Corrent de càrrega màxima | 100A | |
| Volum màxim de circuit obert PVtage | 150V (@ lowest temperature) / 138V (@ 25°C) | 200V (@ lowest temperature) / 180V (@ 25°C) |
| MPPT Vol. operatiutage Rang | Bateria voltage plus 2V ~ 28V to 103V (@ 25°C) | Bateria voltage plus 2V ~ 28V to 144V (@ 25°C) |
| Eficiència de seguiment | ≥ 99.5% | |
| Màxima eficiència de conversió | 98.5% | 98.5% |
| Eficiència a plena càrrega | 98.0% | 97.6% |
| Coeficient de compensació de temperatura | -3mV/°C/2V (per defecte) | |
| Self-consumption (Enabled Communication) | 98mA/12V; 60mA/24V; 46mA/48V | 98mA/12V; 60mA/24V; 46mA/48V |
| Self-consumption (Disabled Communication) | 48mA/12V; 25mA/24V; 14mA/48V | 48mA/12V; 25mA/24V; 14mA/48V |
| Tipus de connexió a terra | Arrel negatiu comú | |
| Dry Contact (Oil Generator / Utility) | Valor nominal: 5A/30VDC; Valor màxim: 0.5A/60VDC | |
| Port de comunicació RS485 | 5VDC/200mA (RJ45) | |
| Dimensió (Llarg × Amplada × Altura) | 352 × 263 × 158 mm | 352 × 263 × 158 mm |
| Mounting Dimension (Length × Width) | 340 × 140 mm | |
| Mida del forat de muntatge | Φ7 mm | |
| Terminal de cablejat | 2AWG/35mm² | |
| Cable recomanat | 2AWG/35mm² | |
| Net Weight (Controller & White Terminal Cover) | 7.87 kg | 7.87 kg |
| Net Weight (Controller Only) | 7.63 kg | 7.63 kg |
| Tancament | IP32 | |
| Seguretat | IEC62109-1 | |
| EMC | EN61000-6-1/EN61000-6-3 | |
8. Consells d'usuari
Maximize your experience with the EPEVER IT-NC G3 series controller with these practical tips:
- Mida del cable: Always use the recommended cable sizes (2AWG/35mm²) for PV, battery, and load connections to minimize voltage drop and ensure efficient power transfer. Shorter cable runs are always better.
- Monitor with App: If you have an IT-NC G3 BLE model, regularly use the mobile app for monitoring. It provides detailed insights into your system's performance and allows for easy parameter adjustments.
- Col·locació òptima: Install the controller in a cool, dry, and well-ventilated location, away from direct sunlight or heat sources, to prevent overheating and ensure optimal performance of the cooling fans.
- Compatibilitat de la bateria: Ensure your battery type is correctly configured in the controller settings. Incorrect settings can lead to improper charging and reduced battery lifespan.
- Operació en paral·lel: If expanding your system with multiple controllers, ensure they are correctly configured for parallel charging as per the instructions to avoid conflicts and ensure balanced charging.
9. Garantia i Suport
For warranty information, technical support, or service inquiries, please refer to the official EPever weblloc web o poseu-vos en contacte amb el vostre distribuïdor autoritzat. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.





