1. Einleitung
The BLUETTI SolarX 4K MPPT Solar Charge Controller is designed to efficiently convert solar energy for charging compatible BLUETTI solar generators and batteries. It features a wide voltage input range, high efficiency, and smart monitoring capabilities via Bluetooth and Wi-Fi, making it suitable for various applications including RVs, off-grid homes, and outdoor use.

Image 1.1: The BLUETTI SolarX 4K MPPT Solar Charge Controller integrated into a home solar setup.
2. Sicherheitshinweise
Please read and understand all safety instructions before installing or operating the SolarX 4K MPPT Solar Charge Controller. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Hohe Lautstärketage Warnung: Solarmodule können hohe Spannungen erzeugen.tages. Always disconnect solar panels from the controller before performing any wiring or maintenance.
- Richtige Erdung: Ensure the controller is properly grounded according to local electrical codes.
- Verpolungsschutz: The device includes reverse polarity protection, but always double-check wiring connections to prevent damage.
- Überstromschutz: The controller is equipped with overcurrent protection. Do not exceed the specified input or output current limits.
- Isolationserkennung: The unit features insulation detection for enhanced safety.
- Qualifiziertes Personal: Installation und Wartung sollten von qualifiziertem Personal durchgeführt werden.
- Umgebungsbedingungen: Do not expose the controller to rain, moisture, or extreme temperatures outside its specified operating range.
3. Packungsinhalt
Überprüfen Sie, ob alle Artikel im Paket vorhanden sind:
- BLUETTI SolarX 4K Solarladeregler
- DC output cable (XT60-F connectors)
- 8 Befestigungsschrauben
- 3 Erdungsschrauben
- 9 OT-Terminals
- 8-Anker
- Knockout connector
- Hex socket wrench
- User Manual (Document)
4. Produktüberschreitungview
The SolarX 4K MPPT Solar Charge Controller offers advanced features for efficient solar power management:
- High Solar Input: Supports up to 4200W solar power input (150V–500V), compatible with various solar panels.
- Außergewöhnliche Effizienz: Achieves up to 99% MPPT efficiency, maximizing energy harvest even in low light conditions.
- Stabile Ausgabe: Delivers 4000W DC power (58V/80A) to BLUETTI solar batteries such as the Apex 300 and B300K.
- Intelligente Überwachung: Remote monitoring and control via the BLUETTI app using Bluetooth and Wi-Fi.
- Robustes Design: Funktioniert zuverlässig bei Temperaturen von -20 °C bis 55 °C (-4 °F bis 131 °F).

Image 4.1: Performance comparison highlighting the SolarX 4K's superior efficiency, input voltage, safety, and scalability.
5. Einrichtungsanweisungen
Follow these steps for proper installation of your SolarX 4K MPPT Solar Charge Controller:
- Auspacken: Nehmen Sie alle Komponenten vorsichtig aus der Verpackung und überprüfen Sie sie auf Beschädigungen.
- Montage: Choose a suitable location for mounting the controller. Ensure it is in a well-ventilated area, protected from direct sunlight and moisture. Use the provided fixing screws and anchors to securely mount the unit.
- Erdung: Connect the grounding screw to a reliable earth ground using appropriate wiring.
- Anschluss des Solarmoduls: Connect your solar panels to the input terminals of the SolarX 4K. Ensure correct polarity (+ to + and - to -) and that the total open-circuit voltage of your solar array is within the controller's specified input range (150V-500V).
- Battery/Generator Connection: Connect the DC output cable (XT60-F connectors) from the SolarX 4K to your compatible BLUETTI solar generator or battery (e.g., Apex 300, B300K). Ensure a secure connection. For optimal 4kW output performance, use with BLUETTI Apex 300 & B300K systems and a P090A cable.
- Erstes Einschalten: Once all connections are secure, power on your BLUETTI solar generator or battery. The SolarX 4K will automatically detect the solar input and begin charging.

Image 5.1: Connection diagram for the SolarX 4K with BLUETTI Apex 300 and B300K units.

Abbildung 5.2: Beispielample of a 12kW solar charging system using multiple SolarX 4K controllers for high-power applications.
6. Bedienungsanleitung
The SolarX 4K is designed for automatic operation once properly installed. Monitoring and advanced settings are managed through the BLUETTI app.
- Automatisches Aufladen: The controller will automatically begin charging your connected BLUETTI power station when sufficient solar input is available.
- BLUETTI App Monitoring: Download the official BLUETTI app from your device's app store. Connect to the SolarX 4K via Bluetooth or Wi-Fi to monitor real-time charging status, energy production, and system performance.
- Firmware-Updates: The BLUETTI app allows for convenient over-the-air firmware updates to ensure your controller always has the latest features and optimizations.

Image 6.1: The BLUETTI app provides smart control and monitoring of your solar power system, including firmware updates and fault alerts.
7. Wartung
To ensure optimal performance and longevity of your SolarX 4K MPPT Solar Charge Controller, perform the following maintenance:
- Regelmäßige Inspektion: Überprüfen Sie regelmäßig alle Kabelverbindungen, um sicherzustellen, dass sie fest sitzen und frei von Korrosion sind.
- Reinigung: Keep the controller's exterior clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Belüftung: Um eine Überhitzung zu vermeiden, ist darauf zu achten, dass die Lüftungsöffnungen nicht verstopft sind.
- Umweltcheck: Confirm the operating environment remains within the specified temperature range (-20°C to 55°C).
8. Fehlerbehebung
If you encounter issues with your SolarX 4K, refer to the following common troubleshooting steps:
- Kein Aufladen:
- Check all solar panel connections for proper polarity and secure fit.
- Überprüfen Sie, ob das Solarpanel-Volumentage is within the controller's input range (150V-500V).
- Ensure the DC output cable is securely connected to the BLUETTI power station.
- Confirm that the BLUETTI power station is powered on and ready to receive charge.
- Low Charging Power:
- Prüfen Sie, ob die Solarpaneele verschattet sind.
- Clean solar panels if dirty.
- Ensure solar panels are optimally angled towards the sun.
- Communication Issues (Bluetooth/Wi-Fi):
- Stellen Sie sicher, dass der Controller eingeschaltet ist.
- Check your mobile device's Bluetooth/Wi-Fi settings.
- Move closer to the controller to improve signal strength.
- Restart the BLUETTI app and/or your mobile device.
- Fehlercodes: The BLUETTI app provides detailed fault alerts and error codes (15+ error codes). Consult the app for specific error messages and recommended actions.
If problems persist, contact BLUETTI customer support for assistance.
9. Spezifikationen
| Marke | BLUETTI |
| Modellname | SolarX 4K+XT60 |
| Solareingangsleistung | Bis zu 4200 W |
| Solareingangsvoltage Reichweite | 150 V bis 500 V |
| Ausgangsleistung | 4000 W Gleichstrom |
| Ausgangsstrom | 80 A |
| MPPT-Effizienz | 99 % |
| Betriebstemperatur | -20 °C bis 55 °C (-4 °F bis 131 °F) |
| Konnektivität | Bluetooth, Wi-Fi |
| Empfohlene Verwendung | Residential, Outdoor, RV, Off-Grid Living |
10. Garantie und Support
Garantie: The BLUETTI SolarX 4K MPPT Solar Charge Controller comes with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
Kundendienst: For technical assistance, warranty claims, or any questions regarding your product, please contact BLUETTI customer service. Refer to the official BLUETTI webWebsite mit Kontaktinformationen und Supportressourcen.