Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your EARU Smart Circuit Breaker. This device is designed to offer remote control, voice control, and advanced timing functions for your electrical circuits through compatible smart home applications. It supports both WiFi 2.4GHz and ZigBee 3.0 protocols, allowing integration with smart home ecosystems like Amazon Alexa and Google Assistant. Please read this manual thoroughly before installation and use to ensure safe and optimal performance.
Important Note: This is a relay-type device and does NOT provide short-circuit or overload protection. It is intended for switching and smart control functions only. Ensure proper circuit protection is in place upstream of this device.
Safety Information
- Installation should only be performed by a qualified electrician to prevent electric shock or fire hazards.
- Ensure the main power supply is disconnected before any installation or maintenance work.
- Do not operate the device if it appears damaged.
- This device is designed for indoor use only.
- The device operates at AC230V, 50/60Hz. Verify your electrical system compatibility.
- As noted, this device does not provide short-circuit or overload protection. Additional protective devices must be installed in the circuit.
Product Overview
The EARU Smart Circuit Breaker comes in various models supporting different smart home ecosystems. All models are designed for easy integration and smart control of your electrical appliances.
Figure 1: Overview of EARU Smart Circuit Breaker Models (Tuya WiFi, eWeLink WiFi, Tuya ZigBee) and Supported Platforms.
Key Features:
- Remote Control: Manage your devices from anywhere using the compatible app.
- Voice Control: Integrate with Amazon Alexa or Google Assistant for hands-free operation.
- Countdown Timer: Set devices to turn off after a specified duration.
- Professional Timing & Scheduling: Create detailed schedules for automated operation (e.g., daily, weekly, recurring).
- Offline Timing: Maintain scheduled operations even without an internet connection (for certain models/features).
- Power Off Memory: The device retains its last state after a power failure and automatically returns to it when power is restored.
- Manual Button Switch: Convenient and swift manual operation.
- PC Flame-Retardant Material: High heat-resistant, insulating, and flame-retardant material for safety.
- Single Channel Wiring: Tunnel-type wiring port for secure connections.
- 35MM Din Rail Mounting: Easy installation in standard distribution boxes.
Specifications
Figure 2: Dimensional Drawing and Product Parameters.
| Parameter | Value |
|---|---|
| Model Number | RDCBC |
| Type | Mini Circuit Breaker (Relay Type) |
| Poles Number | 3P+N |
| Rated Voltage | AC230V |
| Frequency | 50/60Hz |
| Rated Current | 63A / 80A (depending on model) |
| Working Temperature | -25℃ to 70℃ |
| Installation | 35MM Din Rail |
| Wireless Protocol (WiFi models) | WiFi 2.4GHz Only (5GHz not supported) |
| Wireless Protocol (ZigBee models) | ZigBee 3.0 (WiFi 2.4GHz for gateway, 5GHz not supported) |
| App Support | Tuya / Smart Life, eWeLink (Android/iOS) |
| Voice Control | Amazon Alexa, Google Assistant |
| Mechanical Life | Over 100,000 Times ON/OFF Switch |
| Certification | CE |
Installation Guide
1. Physical Installation
- Disconnect Power: Before starting any electrical work, ensure the main power supply to the distribution box is completely turned off at the main circuit breaker.
- Mounting: The EARU Smart Circuit Breaker is designed for 35MM Din Rail installation. Simply clip the device onto the standard Din Rail within your household lighting distribution box.
- Wiring: Connect the input (IN) and output (OUT) terminals according to the wiring diagram provided. Ensure all connections are secure using the tunnel-type wiring ports.
Figure 4: Wiring Diagram for Tuya WiFi/ZigBee and eWeLink WiFi Models.
- Connect the Neutral (N) wire to the N terminal.
- Connect the Live (L1, L2, L3) wires to the respective IN terminals.
- Connect the load wires to the corresponding OUT terminals.
- Restore Power: Once all connections are secure and verified, restore power to the distribution box.
Figure 3: 35MM Standard Rail Installation.
2. App Connection
Your smart circuit breaker can be controlled via the Tuya/Smart Life app or the eWeLink app, depending on the model. Download the appropriate app from your device's app store (Android/iOS).
- Download App: Search for "Tuya Smart", "Smart Life", or "eWeLink" in your app store and install it.
- Register/Login: Open the app and register a new account or log in with an existing one.
- Add Device: Follow the in-app instructions to add a new device. This usually involves selecting the device type (e.g., "Circuit Breaker" or "Switch") and putting the device into pairing mode.
- Pairing Mode: If the device does not automatically enter pairing mode, you may need to long-press the ON/OFF button for 5 seconds until the indicator light flashes rapidly.
- Network Connection: Ensure your smartphone is connected to a 2.4GHz WiFi network. 5GHz networks are not supported for initial setup.
- Complete Setup: Once the device is detected, follow the remaining prompts in the app to complete the connection.
Figure 5: Tuya App Interface for Setup and Control.
Figure 6: eWeLink App Interface for Setup and Control.
Video 1: Demonstration of eWeLink App Control.
Operating Instructions
1. Manual Operation
The circuit breaker can be manually turned ON or OFF by pressing the physical button on the device. The indicator light will show the current status.
2. App Control (Remote Control)
Once connected to the app (Tuya/Smart Life or eWeLink), you can control the circuit breaker remotely from your smartphone or tablet.
- Open the app and select your circuit breaker device.
- Tap the ON/OFF button within the app to toggle the power.
3. Voice Control
Integrate your circuit breaker with Amazon Alexa or Google Assistant for convenient voice commands.
- Ensure your smart speaker (Alexa Echo, Google Home) is set up and linked to your Tuya/Smart Life or eWeLink account.
- Use commands such as:
- "Alexa, turn on [Device Name]"
- "Hey Google, turn off [Device Name]"
Figure 7: Voice Control Integration.
4. Timing Functions
The app provides various timing options to automate your devices:
- Countdown Mode: Set a timer for the device to turn off after a specific duration.
Figure 8: Countdown Mode Example.
- Timed Mode (Scheduling): Set specific times for the device to turn ON or OFF.
Figure 9: Timed Mode Example.
- Recurring Timer Mode: Create schedules that repeat on specific days of the week.
Figure 10: Recurring Timer Mode Example.
- Power Off Memory: The device is designed to remember its last state (ON/OFF) before a power outage and restore it automatically when power returns.
Figure 11: Power Failure Memory Mode.
Maintenance
- Keep the device clean and free from dust. Use a dry, soft cloth for cleaning.
- Do not use harsh chemicals or abrasive cleaners.
- Regularly check wiring connections for tightness and signs of wear.
- Ensure the device is not exposed to excessive moisture or extreme temperatures outside its operating range (-25℃ to 70℃).
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not connecting to app. | Incorrect pairing mode, 5GHz WiFi network, weak signal, incorrect app. |
|
| Voice control not working. | Incorrect integration with Alexa/Google Assistant, device name mismatch. |
|
| Scheduled tasks not executing. | Incorrect schedule settings, device offline, time zone issues. |
|
| Device does not provide short-circuit/overload protection. | This is a relay-type device. | This device is designed for smart switching and control only. It does not offer inherent short-circuit or overload protection. Ensure appropriate circuit breakers or fuses are installed upstream in your electrical panel for safety. |
User Tips
- Energy Monitoring: Please note that this specific model of circuit breaker does not support energy usage tracking through the Tuya or eWeLink app. Its primary functions are remote switching and timing.
- Timing Precision: For critical applications, always double-check your scheduled timings in the app to ensure they are set correctly for daily, weekly, or monthly operations.
- Current Rating: The device is available in 63A and 80A versions. Ensure the selected device's rated current matches or exceeds the requirements of your circuit. The current rating is fixed and not adjustable.
- Power Outage Recovery: Utilize the 'Power Off Memory' feature to ensure your devices return to their desired state after a power interruption, which can be configured in the app settings.
Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
