EARU Smart WiFi Circuit Breaker User Manual

1. Introduction

For optimal performance and safety, please read this manual carefully before using your EARU Smart WiFi Circuit Breaker. Keep this manual for future reference.

1.1 Important Safety Instructions

WARNING:

This product does not feature an explosion-proof structure and must not be used in flammable environments, such as those containing flammable gases, liquids, or explosives.

SAFETY INFORMATION:

Please use this product in accordance with the instructions in this manual.
Do not disassemble this product by yourself.
Pay attention to the rated voltage for use.

2. Product Overview

The EARU Smart WiFi Circuit Breaker series is designed for lighting distribution systems or motor distribution systems, providing protection against overload and short-circuit conditions. These smart devices integrate WiFi connectivity, allowing for remote control, energy monitoring, and advanced protection features via dedicated mobile applications.

2.1 Product Variants

The series includes several models with varying features:

EAWCBT Series: Basic smart circuit breaker.
EAWCBT-J Series: Includes Energy Monitor.
EAWCBT-P Series: Includes Current Limit, Over-Voltage Protection, Under-Voltage Protection, and Energy Monitor.
EAKCB-T-M Series (Tuya/Smart Life App): Comprehensive protection including Current Limit, Power Limit, Over-Voltage Protection, Under-Voltage Protection, Temperature Protection, and Energy Monitor.
EAKCB-EWE-M Series (eWeLink App): Comprehensive protection including Current Limit, Min./Max. Power, Min./Max. Voltage, and Energy Monitor.

Product Images and Feature Comparison Table — Comparison of features across different EARU Smart Circuit Breaker models.

3. Specifications

Parameter	Value
Pole	1P+N
Rated Current	1-63A (Adjustable)
Rated Voltage (EAWCBT/J/P)	AC80-240V
Rated Voltage (EAKCB Series)	AC80-300V
Frequency	50/60Hz
Breaking Capacity	6kA
Installation	35MM Din Rail
Connection	WiFi 2.4GHz Only (5GHz Not Supported) / Zigbee 3.0 (for Zigbee models)
Working Temperature (EAWCBT/J/P)	-40℃~85°C
Working Temperature (EAKCB Series)	-25℃~70°C
Insulation Protection Class	IP20
Certification	CE, FCC
Mechanical Life	Over 100,000 Times ON/OFF Switch
Support System	Android/iOS

3.1 Dimensional Drawings

Dimensional drawing for EAWCBT/J/P series circuit breakers — Dimensional Drawing for EAWCBT / EAWCBT-J / EAWCBT-P models.

Dimensional drawing for EAKCB-T-M / EAKCB-EWE-M series circuit breakers — Dimensional Drawing for EAKCB-T-M / EAKCB-EWE-M models.

4. Installation

Wiring Note: Power must enter from the top and must be a live line + neutral (L+N).

4.1 Physical Installation

The circuit breaker is designed for 35MM Din Rail mounting. It features securing clips for easy installation.

Diagram showing button switch, PC flame-retardant material, single channel wiring, and 35MM Din Rail mounting — Key physical features: Button Switch, PC Flame-Retardant Material, Single Channel Wiring (tunnel-type wiring port), and 35MM Rail Mounting.

4.2 Wiring Diagram

Ensure correct wiring for safe and proper operation. The input (N IN L) is at the top, and the output (N OUT L) is at the bottom.

Wiring diagram for EAWCBT, EAWCBT-J, and EAWCBT-P models — Wiring Diagram for EAWCBT, EAWCBT-J, and EAWCBT-P models. Connect N (Neutral) and L (Live) to the IN terminals at the top, and N and L to the OUT terminals at the bottom.

Wiring diagram for EAKCB-T-M and EAKCB-EWE-M models — Wiring Diagram for EAKCB-T-M and EAKCB-EWE-M models. Connect N (Neutral) and L (Live) to the IN terminals at the top, and N and L to the OUT terminals at the bottom.

If automatic networking is not possible, you can manually connect by long-pressing the on/off button for 5 seconds to open the network connection.

5. Initial Setup and App Pairing

The EARU Smart WiFi Circuit Breaker can be controlled via the Tuya/Smart Life app or the eWeLink app, depending on the model. Ensure your device is powered on and the WiFi indicator is blinking for pairing mode.

5.1 App Download and Installation

Download the appropriate app (Tuya/Smart Life or eWeLink) from your mobile device's app store (Android/iOS).

5.2 Device Pairing

Open the app and register/log in.
Tap the '+' icon to add a new device.
The app may automatically detect nearby devices in pairing mode. If not, select 'Add Manually' and choose the appropriate device type (e.g., 'Smart Rail On/Off Switch' or 'Socket').
Follow the on-screen instructions to connect the device to your 2.4GHz WiFi network. Enter your WiFi password when prompted.
Once successfully added, the device will appear in your app's device list.

Video demonstrating the pairing process of the EARU Smart Circuit Breaker with the mobile application.

6. Operating Instructions

Once paired, you can control and monitor your circuit breaker through the mobile app.

6.1 Remote ON/OFF Control

From the app's main device interface, you can toggle the circuit breaker ON or OFF remotely.

6.2 Timer Switch Functions

Set schedules, countdowns, sunrise/sunset automation, or circulating timers for automatic operation.

Image showing Countdown Mode, Timed Mode, and Recurring Timer Mode examples — Examples of Countdown Mode, Timed Mode, and Recurring Timer Mode for automated control.

EAWCBT-Tuya App Interface for scheduling and timing functions — EAWCBT-Tuya App Interface showing options for Schedule, Sunrise, Sunset, and Circulate timing.

EAWCBT-J-Tuya App Interface for scheduling and timing functions — EAWCBT-J-Tuya App Interface showing options for Schedule, Sunrise, Sunset, and Circulate timing.

EAWCBT-P-Tuya App Interface for scheduling and timing functions — EAWCBT-P-Tuya App Interface showing options for Schedule, Sunrise, Sunset, and Circulate timing.

EAKCB-Tuya App Interface for scheduling and timing functions — EAKCB-Tuya App Interface showing options for Schedule, Sunrise, Sunset, and Circulate timing.

EAKCB-eWeLink App Interface for scheduling and timing functions — EAKCB-eWeLink App Interface showing options for Timer, Loop Timer, and Device Settings.

6.3 Energy Monitoring

Monitor real-time kWh, voltage, current, and power consumption. View electricity statistics by day, month, or year.

Real-time monitoring of kWh, Voltage, Current, and Power consumption — Real-time monitoring of electricity consumption data.

Real-time monitoring of kWh, Voltage, Current, and Power consumption for EAWCBT-J and EAWCBT-P models — Real-time monitoring of electricity consumption data for EAWCBT-J and EAWCBT-P models.

6.4 Protection Settings (Model Dependent)

Set thresholds for various protections. The functional protection and alarm functions are automatically turned on after setting the threshold. The protection tripping switch can be turned on or off.

Current Limit: Adjustable from 1A-63A.
Power Limit: Adjustable from 1KW-26KW (EAKCB-Tuya) or Min.Power 1W-5000W, Max.Power 1W-15000W (EAKCB-eWeLink).
Over-Voltage Protection: Adjustable from 220V-265V.
Under-Voltage Protection: Adjustable from 76V-240V.
Temperature Protection: Adjustable from 40℃-150℃ (EAKCB-Tuya).

EAKCB-Tuya Alarm Setting interface — EAKCB-Tuya App Alarm Setting interface for Temperature, High Power, Over-Current, Over-Voltage, and Under-Voltage protection.

EAWCBT-P-Tuya Alarm Setting interface — EAWCBT-P-Tuya App Alarm Setting interface for Over-Current, Over-Voltage, and Under-Voltage protection.

EAKCB-eWeLink Alarm Setting interface — EAKCB-eWeLink App Alarm Setting interface for Min./Max. Power, Min./Max. Voltage, and Max. Current protection.

6.5 Power Failure Memory

The device is able to retain data after a power failure and automatically return to its pre-power failure state when power is restored.

Image illustrating the Power Failure Memory Mode feature — The device retains its state after a power failure.

7. Voice Control

Integrate your EARU Smart WiFi Circuit Breaker with voice assistants like Amazon Alexa or Google Assistant for convenient hands-free control.

7.1 Connecting to Voice Assistants

Ensure your circuit breaker is successfully paired with its respective app (Tuya/Smart Life or eWeLink).
Open your Amazon Alexa or Google Home app.
Navigate to the 'Skills' or 'Works with Google' section.
Search for 'Tuya Smart', 'Smart Life', or 'eWeLink' skill/service and enable it.
Link your Tuya/Smart Life or eWeLink account with the voice assistant.
Discover devices. Your circuit breaker should now be controllable via voice commands.

Diagram showing voice control integration with Google Assistant and Amazon Alexa — Simply give a voice command to Alexa or Google Home to control your devices.

8. Maintenance

The EARU Smart WiFi Circuit Breaker is designed for durability and requires minimal maintenance. Keep the device clean and free from dust. Do not use harsh chemicals for cleaning. Ensure proper ventilation around the device.

9. Troubleshooting

9.1 Common Issues and Solutions

Device not pairing: Ensure your WiFi network is 2.4GHz. 5GHz networks are not supported. Make sure the device is in pairing mode (blinking WiFi indicator). Try resetting the device by long-pressing the ON/OFF button for 5 seconds.
No power to connected devices: Check the circuit breaker's status in the app. Ensure it is switched ON. Verify the wiring connections are secure.
Inaccurate energy monitoring: Ensure the device is correctly installed and calibrated if applicable (though typically self-calibrating).
Voice control not working: Confirm the device is online in its respective app and that the voice assistant skill is enabled and linked to the correct account. Try re-discovering devices in your voice assistant app.

10. User Tips

App Selection: Be aware that some models use the Tuya/Smart Life app, while others use the eWeLink app. Check your specific model's compatibility before attempting to pair.
WiFi Compatibility: Always ensure your router is configured to support 2.4GHz WiFi for successful pairing, as 5GHz is not supported.
Protection Settings: Utilize the adjustable protection settings (current, voltage, power, temperature) to safeguard your appliances and electrical system effectively. Regularly review these settings to match your load requirements.

11. Warranty and Support

For warranty information and technical support, please refer to the seller's official channels or contact customer service. Keep your purchase receipt as proof of purchase.

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EARU EAKCB-T-M

EARU Smart WiFi Circuit Breaker Instruction Manual