1. Introduction
This manual provides essential instructions for the safe and efficient operation of your PGMTDEFXJO TUYA MCB Smart Miniature Circuit Breaker, model EKR3S 1P 25A. This device integrates circuit protection with smart control features, allowing for remote management and energy metering via the Smart Life application. Please read this manual thoroughly before installation and use.
2. Safety Information
WARNING: Installation and maintenance must be performed by a qualified electrician in accordance with all local and national electrical codes. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Disconnect all power before installing or servicing the device.
- Do not operate the device if it is damaged.
- Ensure correct wiring connections to prevent malfunction or damage.
- This device is designed for AC circuits only.
- Do not exceed the rated current and voltage.
Keep this manual for future reference.
3. Product Overview
The TUYA MCB Smart Miniature Circuit Breaker (EKR3S) combines the functionality of a standard miniature circuit breaker with smart connectivity. It allows for remote ON/OFF control, timing functions, and energy metering through the Smart Life mobile application.
Key Components:
- Operating Handle: Manually switch the breaker ON or OFF.
- Networking Button: Used for pairing the device with the Smart Life app.
- Lock Mechanism: A physical lock to prevent accidental operation.
- Indicator Lights: Show device status (e.g., Wi-Fi connectivity, power status).
Figure 1: Front view of the TUYA MCB Smart Miniature Circuit Breaker (1P 25A). This image shows the operating handle, Wi-Fi indicator, and networking button.
Note: The specific configuration (e.g., 1P, 2P, 3P) will vary based on the model purchased. This manual focuses on the 1P 25A model.
4. Setup and Installation
4.1 Mechanical Installation
- Power Disconnection: Ensure the main power supply to the circuit is completely disconnected before beginning installation. Verify with a voltage tester.
- Mounting: Mount the MCB onto a standard DIN rail within an appropriate electrical enclosure.
- Wiring: Connect the incoming live wire to the top terminal (L) and the outgoing live wire to the bottom terminal (L). For neutral, connect to the N terminal if present on your specific model. Ensure all connections are tight and secure. Refer to the wiring diagram provided with the product packaging for precise connections.
- Verification: Double-check all wiring connections for correctness and security.
4.2 Smart Life App Pairing
- Download App: Download the "Smart Life" app from your mobile device's app store (iOS or Android).
- Register/Login: Open the app and register a new account or log in to an existing one.
- Add Device: Ensure your mobile device is connected to a 2.4GHz Wi-Fi network. In the Smart Life app, tap the "+" icon in the top right corner to add a device.
- Select Device Type: Select "Electrical Engineering" > "Circuit Breaker (Wi-Fi)".
- Enter Wi-Fi Details: Enter your 2.4GHz Wi-Fi network name and password.
- Pairing Mode: On the MCB, press and hold the "Networking button" (usually located near the Wi-Fi indicator) for 5-7 seconds until the Wi-Fi indicator light starts blinking rapidly.
- Confirm Blinking: In the app, confirm that the indicator light is blinking rapidly and proceed.
- Connection: The app will begin searching for and connecting to the device. Once connected, you can rename the device and assign it to a room.
- Completion: The device is now paired and ready for smart control.
5. Operating Instructions
5.1 Manual Operation
- To Turn ON: Push the operating handle upwards to the "ON" position.
- To Turn OFF: Push the operating handle downwards to the "OFF" position.
- Trip Indication: If the breaker trips due to overload or short circuit, the handle will move to a central or "TRIP" position. To reset, first push the handle fully down to "OFF", then push it up to "ON". Investigate the cause of the trip before resetting.
5.2 Smart Life App Operation
- Remote ON/OFF: Open the Smart Life app, select your circuit breaker device. You will see a toggle switch to turn the breaker ON or OFF remotely.
- Timing Functions: Set schedules for the breaker to turn ON or OFF at specific times or days. This is useful for automating lighting, water heaters, or other appliances.
- Countdown: Use the countdown feature to automatically turn the breaker OFF after a set duration.
- Metering: View real-time current, voltage, power consumption, and historical energy usage data within the app. This feature helps monitor and manage energy consumption.
- Scene Automation: Integrate the circuit breaker into smart scenes with other TUYA-compatible devices for advanced automation.
6. Maintenance
The TUYA MCB is designed for minimal maintenance.
- Periodically inspect the device for any visible damage or loose connections.
- Ensure the area around the circuit breaker is clean and free from dust or obstructions.
- Do not attempt to open or repair the device yourself. Refer to qualified personnel for service.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power ON. | No power supply; incorrect wiring; device fault. | Check main power supply. Verify wiring connections. Contact support if fault persists. |
| Wi-Fi indicator not blinking for pairing. | Networking button not pressed long enough; device already paired. | Press and hold the networking button for 5-7 seconds. If already paired, check app. |
| Cannot connect to Smart Life app. | Incorrect Wi-Fi password; 5GHz Wi-Fi network; device too far from router. | Ensure 2.4GHz Wi-Fi. Re-enter password. Move device closer to router or use a Wi-Fi extender. |
| Breaker trips frequently. | Overload on the circuit; short circuit; faulty appliance. | Reduce load on the circuit. Disconnect appliances to identify faulty one. Consult an electrician. |
8. Specifications
- Model: EKR3S 1P 25A
- Brand: PGMTDEFXJO
- Type: AC Miniature Circuit Breaker with Metering
- Rated Current: 25A
- Poles: 1P (Single Pole)
- Rated Voltage: 230V AC (typical for 1P models)
- Frequency: 50/60Hz
- Connectivity: Wi-Fi (2.4GHz)
- Control: Smart Life App, Manual
- Functions: Remote ON/OFF, Timing, Countdown, Energy Metering
- Mounting: DIN Rail
- Operating Temperature: Refer to product packaging
Note: Specifications are subject to change without notice. Refer to the product packaging or manufacturer's website for the most current information.
9. Warranty and Support
Specific warranty information for this PGMTDEFXJO product is not provided in the available data. Please refer to the product packaging or contact the seller directly for details regarding warranty coverage and technical support.
For app-related issues, please refer to the Smart Life app's help section or their official support channels.