1. Introduction
The MANHOT MHSQ 63A WIFI Smart Circuit Breaker is an advanced device designed to provide intelligent control and protection for your electrical circuits. It integrates metering capabilities, voltage and current protection, and smart home compatibility with platforms like Tuya, Smart Life, Google Home, and Alexa. This manual provides detailed instructions for installation, configuration, and operation to ensure safe and efficient use of your smart circuit breaker.
2. Product Features
The MANHOT MHSQ Smart Circuit Breaker offers a range of features for enhanced safety and convenience:
- Double Break Functionality: Can simultaneously cut off both Live (L) and Neutral (N) wires, eliminating the risk of the Neutral wire being energized and preventing electric shock accidents from faulty wiring.
- Integrated Design: Main body and relay are integrated for stable performance.
- Low Resistance: Features low parallel resistance with contact resistance ≤ 1mΩ.
- Double Contact Design: Ensures reliable electrical contact.
- High-Temperature Resilience: Suitable for environments up to 85°-105°C.
- High Short-Circuit Withstand: Can withstand short-circuit current impacts of up to 1600A.
- APP Remote Control: Manage the circuit breaker remotely via the Tuya/Smart Life app.
- Voice Control: Compatible with Alexa and Google Home for hands-free operation.
- Schedule Function: Set timers and schedules for automatic power on/off.
- Family Share Function: Allows multiple family members to control the device.
- Maintenance Lock Function: Power off the device or press the button 4 times to release the maintenance lock.
- High Power Protection: Adjustable threshold (1-26KW) with optional breaker tripping and alarm.
- Over Current Protection: Adjustable threshold (1-82A) with optional breaker tripping and alarm.
- Over Voltage Protection: Adjustable threshold (220-265V) with optional breaker tripping and alarm.
- Under Voltage Protection: Adjustable threshold (76-240V) with optional breaker tripping and alarm.
- Electricity Statistics: Monitor and record power consumption (hourly, daily, monthly, yearly).
- Logs: View switch logs, alarm logs, and setting logs within the app.
3. Specifications
| Attribute | Value |
|---|---|
| Model | MHSQ |
| Brand Name | MANHOT |
| Type | Mini Circuit breaker |
| Rated Frequency | 50/60Hz |
| Rated Voltage | 90-300V |
| Rated Current | 1-63A (Adjustable) |
| Over Voltage Protection | 220-265V |
| Under Voltage Protection | 85-240V |
| Energy Monitor (KW) | 1-26KW |
| Wireless Connection | WiFi 2.4G |
| Poles Description | L+N Double Break |
| Material | PC-V0 |
| Is Smart Device | Yes |
| Certification | CE, RoHS |
| EU LVD Voltage | High voltage: Above 50Vac or 75Vdc |
4. Installation
WARNING: To avoid electric shocks, please consult a qualified electrician or the dealer for help when installing and repairing. Always ensure the main power supply is OFF before installation.
- Power Off: Before starting any electrical work, ensure the main power supply to the circuit is completely turned off at the main breaker panel.
- Wiring Connection: Connect the wires to the upper terminals of the WiFi Din Rail Switch. The live wire connects to the 'L' pole, and the neutral wire connects to the 'N' pole. Ensure all connections are correct, secure, and tight.
- Mounting: The circuit breaker is designed for DIN rail mounting. Secure it firmly onto the DIN rail in your electrical panel.
- Output Connection: Connect the load wires to the lower terminals of the circuit breaker. The live load wire connects to 'L1' and the neutral load wire connects to 'N1'.
- Verify Wiring: Double-check all wiring connections to ensure they match the provided diagram and local electrical codes.
5. APP Configuration (Setup)
To utilize the smart features, configure the device with the Tuya Smart or Smart Life app.
5.1. Download the APP
Search for "Tuya Smart" or "Smart Life" in your mobile app store (Google Play Store for Android, Apple App Store for iOS) and download the application.
5.2. Pairing Steps
- Prepare for Pairing: Ensure your mobile phone's Bluetooth and Wi-Fi are turned on. The circuit breaker should be powered on.
- Enter Pairing Mode: Long press the orange "power" button on the circuit breaker for approximately 5-10 seconds until the Wi-Fi indicator light starts flashing blue slowly.
- Add Device in App: Open the Tuya Smart/Smart Life app. The app should automatically discover the new device. If not, tap the "+" icon in the upper right corner and select "Add Device".
- Confirm Device: Once the device is discovered, click "Add".
- Wi-Fi Information: Enter your 2.4GHz Wi-Fi network name and password when prompted. The device does not support 5GHz Wi-Fi.
- Connection: Wait for the app to connect the switch to your network.
- Completion: Upon successful connection, the Wi-Fi indicator on the circuit breaker will change from slowly flashing blue to a steady blue light.
6. Operating Instructions
6.1. LED Indicator Description
- WI-FI Indicator (Steady Blue): Network connection successful.
- WI-FI Indicator (Flashing Blue): Device is in pairing mode.
- WI-FI Indicator (Off): Device is off-grid or powered off.
- Out Indicator (Light Up): Switch is ON.
- Out Indicator (Light Out): Switch is OFF.
6.2. Real-time Metering and Electricity Statistics
The circuit breaker provides real-time monitoring of current, voltage, and power of connected loads. You can view detailed electricity statistics (hourly, daily, monthly, yearly) within the app to understand power consumption patterns.
Video: Real-time Metering, Schedule, and Voice Control Demonstration
6.3. Schedule and Timer Function
Set up schedules or countdown timers to automatically turn the circuit breaker on or off at specific times or after a set duration. This feature allows for energy management and automation of appliances.
6.4. Voice Control
Integrate your circuit breaker with Amazon Alexa or Google Home for convenient voice commands. Once linked, you can simply say, for example, "Alexa, turn on the power" or "Hey Google, turn off the living room lights" (if the circuit breaker controls living room lights).
6.5. Protection Features and Alarms
The device offers comprehensive protection against electrical anomalies. You can set thresholds for:
- High Power Alarm: Range 1-26KW.
- Over-Current Alarm: Range 1-82A.
- Over-Voltage Alarm: Range 220-265V.
- Under-Voltage Alarm: Range 76-240V.
When a set threshold is exceeded, the system will trigger an alarm. You can configure whether the breaker should trip automatically in response to these alarms.
6.6. Logs
The app records various logs including switch operations, alarm events, and setting changes. This allows you to review the history of device activity and identify potential issues.
7. Maintenance
The MANHOT MHSQ Smart Circuit Breaker is designed for minimal maintenance. However, regular checks can ensure optimal performance and safety.
- Visual Inspection: Periodically inspect the device for any signs of physical damage, loose connections, or overheating (discoloration).
- Cleaning: Keep the device free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquids or abrasive cleaners.
- Firmware Updates: Check the Tuya Smart/Smart Life app for any available firmware updates for your device. Keeping the firmware updated ensures you have the latest features and security patches.
- Maintenance Lock: If performing maintenance on connected appliances, activate the Maintenance Lock function by powering off the device or pressing the button 4 times. This prevents accidental re-energization.
8. Troubleshooting
If you encounter issues with your MANHOT MHSQ Smart Circuit Breaker, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on | No power supply; loose wiring | Check main power supply. Verify all wiring connections are secure (ensure power is off before checking). |
| Wi-Fi indicator not steady blue | Not connected to Wi-Fi; incorrect password; 5GHz network | Ensure Wi-Fi is 2.4GHz. Re-enter Wi-Fi password in the app. Move device closer to router. Re-initiate pairing mode. |
| Device not responding to app/voice commands | No Wi-Fi connection; app/voice assistant not linked | Check Wi-Fi indicator (should be steady blue). Ensure Tuya/Smart Life app is linked to Alexa/Google Home. Restart app and device. |
| Circuit breaker trips unexpectedly | Overload; over/under voltage; short circuit | Check connected appliances for faults or excessive load. Review alarm logs in the app to identify the cause (e.g., over-current, over-voltage). Reduce load or address electrical issues. |
| Cannot release maintenance lock | Incorrect procedure | Ensure the device is powered off, then press the button 4 times to release the lock. |
9. User Tips
- Optimal Wi-Fi Signal: For reliable operation, ensure the circuit breaker is installed in an area with a strong 2.4GHz Wi-Fi signal.
- Regular Monitoring: Utilize the electricity statistics feature to track energy consumption and identify potential energy-saving opportunities.
- Set Protection Thresholds Wisely: Configure the over/under voltage and current protection thresholds according to your specific electrical setup and appliance requirements to prevent damage.
- Voice Command Naming: Use clear and simple names for your devices in the smart home app to make voice commands easier and more effective.
10. Warranty and Support
For detailed warranty information and technical support, please refer to the official product documentation or contact the seller directly. A comprehensive user manual in PDF format is available for download: View User Manual (PDF).