1. Introduction
The GEYA GRD9L-W Wifi MCB Recloser is a miniature circuit breaker designed for intelligent household electricity management and photovoltaic distribution systems. This device combines the functionality of a circuit breaker with smart WiFi control, allowing for remote operation and monitoring.
Key features include:
- Remotely controlled for closing and opening through the Tuya APP.
- MCB (timing switch function) can be set to be turned ON/OFF at any time through the APP.
- Equipped with a manual / automatic selector switch.
- Features a mechanical / electronic double locking function for enhanced safety.
- Utilizes a shaft transmission mode for stable and reliable operation.
- Compatible with various accessories.
- Work status is clearly indicated by an LED light.
2. Safety Information
Please read and understand all safety instructions before installing, operating, or maintaining this device. Failure to follow these instructions may result in serious injury or property damage.
- Installation and maintenance should only be performed by qualified personnel.
- Always disconnect power before working on electrical circuits.
- Ensure proper grounding and wiring according to local electrical codes.
- Do not operate the device if it appears damaged or malfunctioning.
- This device is designed for specific voltage and current ratings. Do not exceed these limits.
- Keep the device away from moisture and extreme temperatures.
3. Product Overview
The GRD9L-W Wifi MCB Recloser integrates a circuit breaker with a WiFi-enabled reclosing mechanism, designed for DIN rail mounting.
3.1. Components and Views
3.2. Panel Diagram
4. Installation
The GRD9L-W is designed for DIN rail mounting (EN/IEC 60715).
4.1. Mounting and Wiring
Cooperation with RCCB:
- Attach the GRD9L-W to the RCCB.
- Secure the connection points.
- Ensure proper alignment for mechanical linkage.
Cooperation with MCB:
- Attach the GRD9L-W to the MCB.
- Secure the connection points.
- Ensure proper alignment for mechanical linkage.
Closing Lock: When checking the circuit, the RCCB/MCB cannot close when the lock function is activated. This prevents accidental reclosing during inspection or maintenance.
Accessories Installing: The GRD9L-W can be combined with various accessories such as ARD, MCB, RCCB, or RCBO units. Ensure correct mechanical and electrical connections.
4.2. Wiring Diagram
Connect the AC220V power supply to the designated terminals. The control terminals (A1, A2, NC, NO) are used for external control and status indication.
4.3. Application Examples
5. Networking Settings
The GRD9L-W can be controlled remotely via the Tuya Smart APP.
5.1. Install APP
Scan the QR code below to download the Tuya Smart APP, or search for 'Tuya Smart' in your device's app store.
5.2. Add Device
Ensure your phone is connected to a 2.4GHz WiFi network, as this product does not support 5G WiFi.
- Open the Tuya Smart APP.
- Click the 'Add Device' button and follow the on-screen prompts to complete the device addition.
- Once added, the main interface of the APP will display the device icon, and the WiFi indicator on the device will be ON. You can now control the device through the APP.
5.3. Reconfigure WiFi
If you need to change your WiFi network or restore factory settings:
- Via APP: If you no longer use this device, you can delete it from the APP, which will restore its factory settings. Then, you can add the device again through the APP.
- Manual Reset: Operate the button 5 times within 5 seconds to restore the factory status and reconfigure WiFi. The device will re-enter the WiFi configuration state, indicated by the WiFi indicator flashing. You can then add the device again through the APP.
6. Operation
The GRD9L-W features both automatic and manual operation modes, along with an LED indicator for status.
6.1. Operating Modes
- AUTO Mode: When the selector switch is in the 'AUTO' position, closing and opening commands can be sent remotely through the Tuya APP.
- MANU Mode: When the selector switch is in the 'MANU' position, sending closing and opening commands through the APP will be invalid. The device must be operated manually.
6.2. LED Indicator
- When the power is ON, the green light will flash for 2 seconds to wait for the power supply to be stable.
- When the WiFi connection is normal, the green light remains ON.
- When the WiFi is in a waiting configuration state, the green light flashes.
- If a trip fault occurs, the indicator light will turn red.
6.3. Functions Diagram
7. Maintenance
To ensure optimal performance and longevity of your GRD9L-W Wifi MCB Recloser, follow these general maintenance guidelines:
- Regularly inspect the device for any visible damage, loose connections, or signs of overheating.
- Keep the device clean and free from dust and debris. Use a dry, soft cloth for cleaning.
- Do not use abrasive cleaners or solvents.
- Ensure that the ventilation openings are not obstructed.
- Periodically check the functionality of the manual/automatic switch and the reclosing mechanism.
8. Troubleshooting
This section addresses common issues you might encounter with your GRD9L-W Wifi MCB Recloser.
8.1. Common Faults and Solutions
- Unable to close or open:
- Confirm whether the power supply voltage is normal.
- Confirm whether the working mode is set to 'AUTO' mode.
- Confirm the buckle of the electric operation mechanism with the MCB.
- Confirm if the green terminal is connected with wires.
- Trip immediately after closing:
- Check the circuit to confirm whether there is an overload, short circuit, or leakage fault at the lower end of the MCB/RCCB/RCBO.
- Check if the circuit breaker is damaged or if it has slipped from its mounting.
8.2. Frequently Asked Questions (FAQ)
- Q: If the breaker trips, can I reconnect it via WiFi or does it connect automatically?
A: The device is an auto-recloser, meaning it can attempt to reclose automatically after a trip. Additionally, if in 'AUTO' mode, you can send closing commands remotely via the Tuya APP. - Q: What WiFi frequency does it support?
A: The device supports 2.4GHz WiFi (802.11 b/g/n). It does not support 5G WiFi.
9. Specifications
Detailed technical parameters for the GRD9L-W Wifi MCB Recloser.
| Parameter | Value |
|---|---|
| Control mode | WiFi |
| Supply terminals | A1-A2 |
| Voltage range | AC 220V (50-60Hz) |
| Supply voltage tolerance | -10% ~ +10% |
| Power input | AC max. 1VA (standby) max. 20VA (action) |
| Action time | ≤1s |
| WiFi connectivity | 802.11 b/g/n, 2.4GHz |
| Mechanical life | 10000 |
| Electrical life | Refer to MCB / RCCB / RCBO catalogue |
| Operating temperature | -20°C to +55°C |
| Storage temperature | -35°C to +75°C |
| Mounting/DIN rail | Din rail EN/IEC 60715 |
| Protection degree | IP20 |
| Operating position | Any |
| Overvoltage category | III. |
| Pollution degree | 2 |
| Max. cable size (mm²) | Solid wire max. 1x2.5 or 2x1.5 / with sleeve max. 1x2.5 (AWG 12) |
| Dimensions | 82 x 18 x 78mm |
| Weight | 80g |
9.1. Combination with Accessories
| Accessory Type | Compatibility |
|---|---|
| Auxiliary contact | Yes |
| Alarm contact | Yes |
| Shunt release | Yes |
| Under voltage release | Yes |
10. User Tips
Here are some helpful tips for using your GEYA GRD9L-W Wifi MCB Recloser:
- WiFi Compatibility: Always ensure your router is broadcasting a 2.4GHz WiFi signal when connecting the device, as it does not support 5G networks.
- Mode Selection: Understand the difference between 'AUTO' and 'MANU' modes. Use 'AUTO' for remote control convenience and 'MANU' when you need to disable remote commands, for example, during maintenance or when direct physical control is preferred.
- Connection Check: If you experience issues with closing or opening, always start by checking the physical wiring, especially the green terminal connections, and ensure the power supply is stable.
- Overload Protection: If the breaker trips frequently, investigate the connected load for potential overloads, short circuits, or leakage faults before attempting to reclose.
11. Warranty and Support
For warranty information and technical support, please refer to the official GEYA website or contact your local distributor. Keep your purchase receipt as proof of purchase.
