1. Introducció
The TARSHYRY YX851 is a DC 12V 10A Automatic Power Switching Module designed to provide uninterrupted power to a load by seamlessly switching between a main power supply and a backup battery. This module prioritizes the main power supply and automatically transitions to battery power during outages, ensuring continuous operation of your connected devices. Its advanced manufacturing technology guarantees high reliability and stable performance, meeting strict quality standards for dependable use.

Figura 1: superior view of the TARSHYRY YX851 Automatic Power Switching Module.
2. Configuració i cablejat
Proper wiring is crucial for the safe and effective operation of the YX851 module. Refer to the wiring diagram below for connection details. Ensure all connections are secure before applying power.

Figure 2: Wiring diagram for the YX851 module. Connect the 12V power supply, 12V battery, and load as shown.
Passos de connexió:
- Main Power Supply Connection: Connect your 12V main power supply (e.g., a 12V power adapter) to the designated input terminals on the module. Ensure correct polarity (+ and -).
- Connexió de la bateria: Connect your 12V backup battery to the battery terminals on the module. Observe correct polarity (+ and -). The module will charge the battery when the main power is present.
- Connexió de càrrega: Connect your DC 12V load (the device you want to power) to the output terminals. Ensure correct polarity.
- Voltage Ajust: Before initial use, adjust the charge start and shutdown voltage settings as described in the Operating Instructions section to match your battery type and desired operation.
3. Instruccions de funcionament
The YX851 module operates automatically to manage power distribution. It features user-friendly voltage adjustments for precise control over battery charging and switching thresholds.
Automatic Switching Function:
- When the main 12V power supply is active, the module prioritizes power delivery to the load from the main supply and simultaneously charges the connected 12V battery.
- In the event of a main power failure, the module automatically switches the load to the backup 12V battery, ensuring continuous power without interruption.
- When the main power supply is restored, the module automatically switches the load back to the main supply and resumes charging the battery.
Voltage Reglament:
The module includes two potentiometers for voltage adjustment, allowing customization for various power and battery needs. These adjustments control the battery charging and discharge thresholds.

Figure 3: YX851 module showing locations for charge start and charge shutdown voltage ajustos.
- Inici de càrrega Voltage Ajust: This potentiometer controls the voltage level at which the module begins charging the battery. Turning clockwise increases the voltage, and counter-clockwise decreases it.
- Charge Shutdown Voltage Reglament: This potentiometer sets the voltage level at which the module stops charging the battery (or switches to battery power if the main supply drops below this threshold). Turning clockwise increases the voltage, and counter-clockwise decreases it.
Precautions for Voltage Ajust: For 12V batteries, adjust a half circle clockwise to add approximately 0.5V, and a half circle counter-clockwise to subtract approximately 0.5V. Do not adjust more than one full circle to avoid damage or incorrect operation.
4. Manteniment
To ensure the longevity and optimal performance of your YX851 module, follow these simple maintenance guidelines:
- Mantenir net: Regularly clean the module with a soft, dry cloth to remove dust and debris. Avoid using liquids or abrasive cleaners.
- Comproveu les connexions: Periodically inspect all wiring connections to ensure they are tight and free from corrosion. Loose connections can lead to intermittent operation or damage.
- Condicions ambientals: Operate the module within its specified temperature and humidity ranges. Avoid exposing it to extreme heat, cold, or moisture.
- Ventilació: Ensure adequate airflow around the module to prevent overheating, especially during prolonged operation or high current draw.
5. Solució De Problemes
If you encounter issues with your YX851 module, refer to the following troubleshooting steps:
| Problema | Causa possible | Solució |
|---|---|---|
| La càrrega no rep energia |
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| Module not switching to battery power during outage |
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| La bateria no es carrega |
|
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Si el problema persisteix després de seguir aquests passos, poseu-vos en contacte amb l'atenció al client.
6. Especificacions
Detailed technical specifications for the TARSHYRY YX851 Automatic Power Switching Module:
| Característica | Detall |
|---|---|
| Tipus d'element | Automatic Power Switching Module |
| Model | YX851 |
| Marca | TARSIRI |
| Corrent de control | 10A |
| Material | Plàstic |
| Color | As shown in image |
| Mida (LxWxH) | Approx. 69 x 48 x 18 mm / 2.7 x 1.9 x 0.7 inches |
| Mida de muntatge | Approx. 61 x 41 mm / 2.4 x 1.6 inches |
| Fabricant | TARSIRI |
| País d'origen | Xina |
| Condició | Nou |
7. Informació de la garantia
This TARSHYRY YX851 Automatic Power Switching Module comes with a Garantia del fabricant de 2 anysAquesta garantia cobreix els defectes de materials i de fabricació en condicions d'ús normal. Si us plau, conserveu el comprovant de compra per a reclamacions de garantia.
Please note that spare parts availability and guaranteed software updates are not available for this product.
8. Suport
For technical assistance, troubleshooting beyond the scope of this manual, or warranty inquiries, please contact TARSHYRY customer support through your retailer or the official brand website. When contacting support, please have your product model (YX851) and purchase details ready.