1. Introduction
Thank you for choosing the EARU Smart Circuit Breaker Switch. This device integrates advanced protection features with smart home connectivity, allowing for remote control, energy monitoring, and automated scheduling of your electrical circuits. Please read this manual carefully before installation and operation to ensure safe and efficient use.
2. Safety Information
- Professional Installation Recommended: Installation should be performed by a qualified electrician to prevent electric shock or damage to the device.
- Power Off Before Installation: Always disconnect the main power supply before installing or performing any maintenance on the circuit breaker.
- Correct Wiring: Ensure all wiring connections are secure and follow the provided wiring diagrams. Incorrect wiring can lead to malfunction or hazards.
- Voltage Compatibility: Verify that the device's rated voltage matches your electrical system.
- Environmental Conditions: Do not expose the device to excessive moisture, dust, or extreme temperatures outside its specified operating range.
- Children Safety: Keep the device out of reach of children.
3. Product Overview
The EARU Smart Circuit Breaker Switch is designed to provide comprehensive protection and smart control for your electrical appliances. It comes in both 1-Pole (1P) and 2-Pole (2P) configurations, with options for WiFi (EAYCBM-TY) or ZigBee (EAYCBM-ZG) connectivity.
Key Features:
- Adjustable Current Limit: 1A-63A
- Adjustable Power Limit: 1KW-26KW
- Over-Voltage Protection: 220V-265V (Adjustable)
- Under-Voltage Protection: 76V-240V (Adjustable)
- Temperature Protection: 40℃-150℃ (Adjustable)
- Leakage Protection: 30mA (Available on 2P models only)
- Energy Monitoring: Real-time and historical data for kWh, Voltage, Current, Power, and Temperature.
- Timer Switch: Schedule ON/OFF times.
- Remote Control: Control via Tuya App/Smart Life App.
- Voice Control: Compatible with Amazon Alexa Echo/Google Assistant.
- Power Failure Memory: Retains settings after power loss.
Product Variants:
| Feature | WiFi 1P | ZigBee 1P | WiFi 2P | ZigBee 2P |
|---|---|---|---|---|
| Connection | WiFi | ZigBee | WiFi | ZigBee |
| Timer Switch | ✓ | ✓ | ✓ | ✓ |
| Remote Control | ✓ | ✓ | ✓ | ✓ |
| Energy Monitor | ✓ | ✓ | ✓ | ✓ |
| Current Limit | ✓ | ✓ | ✓ | ✓ |
| Wattage Protection | ✓ | ✓ | ✓ | ✓ |
| Under Voltage Protection | ✓ | ✓ | ✓ | ✓ |
| Temperature Protection | ✓ | ✓ | ✓ | ✓ |
| Power Off Memory | ✓ | ✓ | ✓ | ✓ |
| Leakage Protection (30mA 2P Only) | ✓ | ✓ |
Figure 1: Feature Comparison Table
Figure 2: Product Overview
4. Specifications
| Attribute | Value |
|---|---|
| Type | Moulded Case Circuit Breaker |
| Model Number | EAYCBM-TY/EAYCBM-ZG |
| Is Smart Device | Yes |
| Rated Voltage | 220V |
| Working Voltage | AC80-300V |
| Frequency | 50/60Hz |
| Rated Current | 1-63A (Adjustable) |
| Over-Under Protection | 220-265V (Adjustable) |
| Under-Voltage Protection | 76-240V (Adjustable) |
| Power Protection | 1-26KW (Adjustable) |
| Temperature Protection | 40℃-150℃ (Adjustable) |
| Leakage Protection | 30mA (Only 2P) |
| Wireless Protocol 1 | WiFi 2.4GHz Only (5GHz Not Supported) |
| Wireless Protocol 2 | ZigBee 3.0 |
| App | Tuya & Smart Life |
| Working Temperature | -25℃-70℃ |
| Installation | 35MM Din Rail |
| Mechanical Life | Over 100,000 Times |
| Pole | 1P/2P |
| Breaking Capacity | 6kA |
| Insulation Protection Class | IP20 |
| Certification | CE, FCC |
Figure 3: Product Dimensions and Parameters
5. Setup and Installation
Important: Ensure the main power supply is OFF before proceeding with installation.
5.1 Physical Installation
- Mount the circuit breaker onto a standard 35MM DIN rail in your electrical distribution box.
- Ensure it is securely fastened.
5.2 Wiring Diagram
Follow the appropriate wiring diagram for your 1P or 2P model. Ensure correct connection of Live (L) and Neutral (N) wires for both input and output.
Figure 4: Wiring Diagram (1P Model)
Figure 5: Wiring Diagram (2P Model)
5.3 Initial Power-Up and App Pairing
- After wiring, restore the main power supply. The device's display should light up.
- Download the Tuya Smart or Smart Life app from your mobile app store (Android/iOS).
- Register or log in to your account.
- In the app, tap the '+' icon to add a new device. The app may automatically detect the device if it's in pairing mode. If not, select 'Add Manually' and choose the appropriate device type (e.g., 'Socket' under Electrical).
- Follow the in-app instructions to connect the device to your WiFi (2.4GHz only) or ZigBee network. For ZigBee models, a ZigBee gateway is required.
- Important Note for 110V Systems: If you are using a 110V power supply, you MUST set the Under-Voltage protection threshold to 110V within the app's alarm settings. Failure to do so will prevent the device from powering on.
Video 1: Demonstration of App Pairing and Control
6. Operating Instructions
6.1 Manual Control
The device has physical buttons for manual ON/OFF control. Press the button to toggle the power state.
6.2 Remote Control via App
Once paired with the Tuya Smart/Smart Life app, you can remotely turn the circuit breaker ON or OFF from anywhere with an internet connection. The app interface will display the current status of the switch.
6.3 Voice Control
Integrate your circuit breaker with Amazon Alexa or Google Assistant for convenient voice control. Link your Tuya Smart/Smart Life account to your voice assistant app and use commands like "Alexa, turn on the living room light" or "Hey Google, turn off the kitchen power."
Figure 6: Voice Control Setup
7. App Integration and Advanced Features
The Tuya Smart/Smart Life app unlocks the full potential of your EARU Smart Circuit Breaker Switch.
7.1 Alarm Settings
Configure various protection thresholds directly from the app:
- High Temperature: Set a threshold (e.g., 100°C) to automatically trip the breaker if the device temperature exceeds it.
- High Power Alarm: Define a maximum power consumption (e.g., 26KW) to prevent overload.
- Over-Current Alarm: Set a maximum current (e.g., 63A) to protect against excessive current flow.
- Over-Voltage Alarm: Configure the upper voltage limit (e.g., 265V).
- Under-Voltage Alarm: Set the lower voltage limit (e.g., 76V). Remember to adjust this to 110V for 110V power supplies.
Figure 7: Alarm Setting Interface
Figure 8: Temperature Protection
Figure 9: Leakage Protection (2P Only)
7.2 Timing Functions
Automate your devices with various timing modes:
- Schedule: Set specific ON/OFF times for different days of the week.
- Sunrise/Sunset: Automatically turn devices ON/OFF relative to local sunrise or sunset times.
- Circulate: Set a repeating ON/OFF cycle within a specified time range.
- Countdown: Set a timer for the device to turn ON or OFF after a set duration.
Figure 10: Timing Modes
Figure 11: App Settings Overview
7.3 Energy Monitoring
The app provides real-time monitoring of Power (W), Voltage (V), Current (A), and Temperature (°C). You can also view historical electricity consumption data (kWh) by day, month, or year, helping you track and manage energy usage.
Figure 12: Real-Time Monitoring and Electricity Statistics
7.4 Power Failure Memory
The device is equipped with a power failure memory function, allowing it to retain its last state (ON/OFF) and settings after a power outage and automatically return to that state when power is restored.
Figure 13: Power Failure Memory Mode
8. User Tips
- Network Stability: For optimal performance, ensure your WiFi network is stable and the circuit breaker is within range of your router or ZigBee gateway.
- Regular Checks: Periodically check the device's temperature and current readings in the app to ensure it's operating within safe limits.
- Firmware Updates: Keep the device firmware updated through the Tuya Smart/Smart Life app for the latest features and security enhancements.
- App Notifications: Enable app notifications for alarm settings to receive immediate alerts in case of protection trips.
9. Maintenance
- Cleaning: Use a dry, soft cloth to clean the exterior of the device. Do not use abrasive cleaners or solvents.
- Connection Check: Periodically inspect wiring connections to ensure they remain tight and secure.
- Test Leakage Protection (2P Models): For 2P models with leakage protection, perform a monthly test using the dedicated test button on the device, if available, or as instructed by the app.
10. Troubleshooting
- Device Not Powering On:
- Check main power supply.
- Verify correct wiring.
- If using 110V, ensure Under-Voltage protection is set to 110V in the app.
- App Connection Issues:
- Ensure your mobile device is connected to a 2.4GHz WiFi network (5GHz is not supported for WiFi models).
- Restart the circuit breaker and your router.
- Ensure the device is within range of your WiFi router or ZigBee gateway.
- If using ZigBee, confirm your ZigBee gateway is online and functioning correctly.
- Protection Tripping Frequently:
- Check the current, voltage, power, and temperature readings in the app.
- Review your alarm settings in the app and adjust thresholds if necessary, ensuring they match your load requirements.
- Reduce the load connected to the circuit if it consistently exceeds the set limits.
- Voice Control Not Working:
- Ensure your Tuya Smart/Smart Life account is correctly linked to your Amazon Alexa or Google Assistant app.
- Check your internet connection.
- Verify the device name in the app matches the name used in voice commands.
11. Warranty and Support
For warranty information and technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
