1. Introducció
This manual provides detailed instructions for the installation, operation, and maintenance of the Erayak GT-800 MPPT On-Grid 800W Micro Inverter. Please read this manual thoroughly before installation and operation to ensure proper function and safety.

Figure 1: Erayak GT-800 Micro Inverter with its monitoring application interface.
2. Instruccions de seguretat importants
Observe the following safety precautions during all stages of installation, operation, and maintenance of the Erayak GT-800 Micro Inverter:
- La instal·lació ha de ser realitzada per personal qualificat d'acord amb els codis i les normatives elèctriques locals.
- Ensure the inverter is disconnected from all power sources (solar panels and AC grid) before performing any service or maintenance.
- The device is equipped with an integrated ENS protection circuit and 6000V overvoltagprotecció.
- The Erayak GT-800 meets German standards VDE-AR-N 4105:2018-11 and EN50549-1.
- No intenteu obrir ni reparar l'inversor. Envieu totes les tasques de manteniment a personal de servei qualificat.
- Assegureu-vos de posar a terra correctament l'inversor.
- The inverter is IP66 rated for water and dust resistance, suitable for outdoor installation. However, avoid submerging the device.

Figure 2: The Erayak GT-800 Micro Inverter features an IP66 waterproof rating, indicating protection against dust and powerful water jets.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents i no estiguin danyats en desempaquetar-los:
- 1 x Erayak GT-800 Micro Inverter
- 1 x 2-meter AC Connection Cable
- 2 x Sets of Screws for mounting
- 1 x User Manual (English version provided here)
4. Especificacions tècniques
| Característica | Especificació |
|---|---|
| Nom del model | GT800 |
| Potència del mòdul recomanada | 250W to 550W per panel (max 800W total) |
| Entrada Voltage Rang | 20 V - 50 V |
| MPPT Peak Voltage Rang | 22 V - 48 V |
| Startup Voltage | 22 V |
| Volum d'entrada màximtage | 50 V |
| Corrent màxim de curtcircuit d'entrada | 2 x 16A |
| Potència de sortida nominal | 800W |
| Rated Output Current (at 230V) | 3.5A |
| Vol. De sortida nominaltage / Interval | 230V (180V - 275V) |
| Eficiència ponderada CEC | 96.50% |
| Dimensions (LxWxH) | 230 x 200 x 40 mm |
| Classificació de protecció | IP66 |
| Consum d'energia en espera | < 50 mW |
5. Configuració i instal·lació
The Erayak GT-800 Micro Inverter is designed for easy installation. Follow these steps for a successful setup:
- Muntatge: Securely mount the micro inverter in a suitable location, preferably in a shaded area to optimize performance. Use the provided screw sets.
- Connexió del panell solar: Connect up to two solar panels (250W to 550W each) to the inverter's MC4 compatible module connectors. Ensure correct polarity. The input voltagEl rang és de 20 V-50 V.
- Connexió a la xarxa de CA: Connect the inverter to your AC grid using the provided 2-meter AC connection cable. The inverter supports AC Daisy Chain cabling for multiple units.
- Parallel Installation (Optional): For larger systems, multiple GT-800 inverters can be connected in parallel. Each inverter operates independently, ensuring continuous power generation even if one unit experiences an issue.

Figure 3: Basic installation diagram illustrating solar panel and AC grid connections.

Figura 4: Example of a parallel installation with two GT-800 micro inverters and four solar panels.
6. Funcionament
The Erayak GT-800 Micro Inverter features advanced technology for optimal performance and monitoring.
6.1 Tecnologia MPPT
The inverter utilizes Maximum Power Point Tracking (MPPT) technology to optimize the current detection of solar panels. With a CEC efficiency of 96.5%, the dual MPPT tracker ensures optimal performance by accurately capturing and converting sunlight into electricity, maximizing power output by over 25% compared to systems without MPPT.
6.2 WiFi SmartLife App Monitoring
The GT-800 allows for remote control and monitoring via the SmartLife mobile application. This application enables you to:
- Monitor electricity production efficiency in real-time.
- Track energy capture and consumption.
- Control the inverter's switching system remotely.

Figure 5: System overview demonstrating connectivity with the SmartLife App for monitoring.

Figure 6: The Erayak SmartLife App interface displaying real-time operational data.
6.3 Auto-Cooling Feature
The GT-800 incorporates an auto-cooling technology. At high temperatures, the inverter automatically cools itself. The minimum power output is 400W during this process. After cooling, the output power automatically increases to maximize energy consumption and prevent overheating shutdowns.

Figure 7: Performance graph demonstrating the GT-800's overheat shutdown prevention mechanism, maintaining output even at elevated temperatures.
7. Manteniment
Regular maintenance ensures the longevity and optimal performance of your Erayak GT-800 Micro Inverter:
- Neteja: Periodically clean the exterior of the inverter to remove dust and debris. Use a soft, damp tela. No utilitzeu productes químics o materials abrasius.
- Connexions: Annually inspect all electrical connections (MC4 and AC) for tightness and signs of corrosion. Ensure they are secure.
- Ventilació: Ensure that the area around the inverter is clear to allow for proper airflow and cooling.
- Seguiment: Regularly check the SmartLife App for any error messages or unusual performance readings.
8. Solució De Problemes
This section provides solutions to common issues you might encounter with your Erayak GT-800 Micro Inverter.
| Problema | Causa possible | Solució |
|---|---|---|
| Sense potència de sortida | No sunlight, DC input voltage too low, AC grid disconnected, inverter fault. | Check solar panel connections and sunlight conditions. Verify AC grid connection. If issue persists, contact support. |
| Sortida de baixa potència | Shading on panels, dirty panels, high ambient temperature (auto-cooling engaged), panel degradation. | Clear shading, clean panels. Ensure adequate ventilation. Monitor app for temperature readings. |
| Problemes de connexió Wi-Fi | Weak WiFi signal, incorrect network settings, app error. | Ensure inverter is within WiFi range. Reconfigure WiFi settings in the app. Restart the app or inverter. |
| Sobreescalfament del inversor | Insufficient ventilation, prolonged high ambient temperature. | Ensure proper airflow around the inverter. The auto-cooling feature will reduce output to prevent damage. If persistent, relocate to a cooler spot. |
9. Garantia i Suport
The Erayak GT-800 Micro Inverter comes with a 5 any de garantia. Erayak provides a German repair service and 24-hour technical support for any inquiries or issues you may encounter.
For technical assistance or warranty claims, please contact Erayak customer service through the contact information provided with your purchase or on the official Erayak weblloc.




