LMB3MP Wifi Over under voltage protector

LMB3MP Wifi Over under voltage protector

Control your home power remotely with this Tuya-compatible smart circuit breaker. Featuring real-time voltage/current/power monitoring on a clear LED display, overvoltage/overcurrent protection, and voice control with Alexa/Google Assistant, this DIN-rail mounted 1P breaker lets you automate schedules, track energy usage, and manage circuits from anywhere via the Tuya Smart App. CE-certified, easy to install, and built for reliable home automation safety.

Control your home power remotely with this Tuya-compatible smart circuit breaker. Featuring real-time voltage/current/power monitoring on a clear LED display, overvoltage/overcurrent protection, and voice control with Alexa/Google Assistant, this DIN-rail mounted 1P breaker lets you automate schedules, track energy usage, and manage circuits from anywhere via the Tuya Smart App. CE-certified, easy to install, and built for reliable home automation safety.

Product Overview

Upgrade your home electrical system with our Tuya WiFi Smart Circuit Breaker, a cutting-edge 1P DIN rail-mounted smart switch designed for seamless home automation, real-time energy monitoring, and remote control. Compatible with the Tuya Smart ecosystem, this circuit breaker combines reliable overcurrent/overvoltage protection with smart connectivity, letting you manage your home’s power from anywhere via your smartphone.
Equipped with a high-visibility LED digital display, it shows real-time voltage, current, and power data at a glance, while the one-touch manual control button ensures easy local operation. Perfect for residential, commercial, and industrial applications, this smart breaker is the ultimate solution for modern, energy-efficient homes.

Key Features

Tuya Smart App Remote Control

Connect to your home WiFi (2.4GHz only) and control the circuit breaker remotely via the Tuya Smart App. Turn power on/off, set schedules, and monitor energy usage from anywhere in the world, no hub required.

Real-Time LED Digital Display

Built-in high-brightness LED screen displays real-time voltage (V), current (A), and power (W) data, so you can always check your home’s electrical status at a glance.

Multiple Protection Functions

Built-in overvoltage, undervoltage, overcurrent, and short-circuit protection automatically cuts off power to prevent electrical hazards, protecting your home appliances and wiring.

DIN Rail Mount Design

Standard 1P DIN rail housing fits perfectly into standard electrical distribution boxes, easy to install and compatible with most home electrical systems.

Voice Control Compatibility

Works with Amazon Alexa and Google Assistant for hands-free voice control. Simply use voice commands to turn on/off connected devices.

Schedule & Timer Function

Set custom on/off schedules for your appliances (e.g., lights, water heaters, air conditioners) to save energy and automate your daily routine.

Manual Control Button

Emergency one-touch manual control button for local operation, even when the internet is down, ensuring safety and reliability.

Energy Monitoring

Track real-time and historical energy consumption via the Tuya App, helping you identify energy waste and reduce your electricity bills.


Technical Specifications

Parameter Specification
Model LMB3M/LMB3MS/LMB3MP(Optional)
Rated Voltage AC 220V (110V Optional)
Rated Current 63A (Max)
WiFi Standard 2.4GHz 802.11 b/g/n
App Compatibility Tuya Smart / Smart Life
Voice Control Amazon Alexa, Google Assistant
Mounting Type DIN Rail (1P)
Display LED Digital Display (Voltage/Current/Power)
Protection Overvoltage, Undervoltage, Overcurrent, Short Circuit
Operating Temperature -30℃ ~ +70℃
Humidity Range 5% ~ 95% RH (Non-condensing)
Certification CE Certified
Wiring N/L Input & Output

How It Works

  1. Easy Installation

    Mount the smart circuit breaker on a standard DIN rail in your electrical distribution box, connect the N/L input and output wires, and power on.

  2. WiFi Connection

    Download the Tuya Smart App, add the device, and connect to your 2.4GHz home WiFi network (5GHz not supported).

  3. Remote Control & Monitoring

    Use the app to turn power on/off, set schedules, view real-time energy data, and receive overload/overvoltage alerts.

  4. Voice Control

    Link the device to Amazon Alexa or Google Assistant for hands-free control of your connected appliances.


Package Contents

  • 1 x Tuya WiFi Smart Circuit Breaker (1P DIN Rail)
  • 1 x User Manual
  • 1 x Mounting Screw Kit

Why Choose Our Smart Circuit Breaker?

🔹 Smart Home Integration: Seamlessly fits into your Tuya-based smart home ecosystem, working with thousands of compatible devices.

🔹 Safety First: Advanced protection features prevent electrical fires and damage to your appliances.

🔹 Energy Saving: Real-time energy monitoring helps you cut down on unnecessary power usage and lower utility bills.

🔹 Easy Installation: No professional electrician required for basic installation (follow local electrical codes).

🔹 Reliable Performance: CE-certified for quality and safety, with a durable design for long-term use.


Suitable Applications

  • Home electrical distribution systems
  • Smart home automation projects
  • Commercial office power management
  • Industrial equipment control
  • Solar power system monitoring
  • Rental property remote power management

FAQ

Q: Does this require a hub?

A: No, it connects directly to your 2.4GHz home WiFi network, no hub required.

Q: Can I use it with 5GHz WiFi?

A: No, this device only supports 2.4GHz WiFi networks.

Q: Is it compatible with Alexa/Google Home?

A: Yes, it works with Amazon Alexa and Google Assistant for voice control.

Q: Can I install it myself?

A: Basic installation is simple, but we recommend hiring a licensed electrician for compliance with local electrical codes.

Q: Does it have manual control?

A: Yes, it features a one-touch manual control button for local operation, even without internet.


Contact Us

For bulk orders, technical support, or custom solutions, please contact our sales team. We offer OEM/ODM services for global partners.

Product Overview

Upgrade your home electrical system with our Tuya WiFi Smart Circuit Breaker, a cutting-edge 1P DIN rail-mounted smart switch designed for seamless home automation, real-time energy monitoring, and remote control. Compatible with the Tuya Smart ecosystem, this circuit breaker combines reliable overcurrent/overvoltage protection with smart connectivity, letting you manage your home’s power from anywhere via your smartphone.
Equipped with a high-visibility LED digital display, it shows real-time voltage, current, and power data at a glance, while the one-touch manual control button ensures easy local operation. Perfect for residential, commercial, and industrial applications, this smart breaker is the ultimate solution for modern, energy-efficient homes.

Key Features

Tuya Smart App Remote Control

Connect to your home WiFi (2.4GHz only) and control the circuit breaker remotely via the Tuya Smart App. Turn power on/off, set schedules, and monitor energy usage from anywhere in the world, no hub required.

Real-Time LED Digital Display

Built-in high-brightness LED screen displays real-time voltage (V), current (A), and power (W) data, so you can always check your home’s electrical status at a glance.

Multiple Protection Functions

Built-in overvoltage, undervoltage, overcurrent, and short-circuit protection automatically cuts off power to prevent electrical hazards, protecting your home appliances and wiring.

DIN Rail Mount Design

Standard 1P DIN rail housing fits perfectly into standard electrical distribution boxes, easy to install and compatible with most home electrical systems.

Voice Control Compatibility

Works with Amazon Alexa and Google Assistant for hands-free voice control. Simply use voice commands to turn on/off connected devices.

Schedule & Timer Function

Set custom on/off schedules for your appliances (e.g., lights, water heaters, air conditioners) to save energy and automate your daily routine.

Manual Control Button

Emergency one-touch manual control button for local operation, even when the internet is down, ensuring safety and reliability.

Energy Monitoring

Track real-time and historical energy consumption via the Tuya App, helping you identify energy waste and reduce your electricity bills.


Technical Specifications

Parameter Specification
Model LMB3M/LMB3MS/LMB3MP(Optional)
Rated Voltage AC 220V (110V Optional)
Rated Current 63A (Max)
WiFi Standard 2.4GHz 802.11 b/g/n
App Compatibility Tuya Smart / Smart Life
Voice Control Amazon Alexa, Google Assistant
Mounting Type DIN Rail (1P)
Display LED Digital Display (Voltage/Current/Power)
Protection Overvoltage, Undervoltage, Overcurrent, Short Circuit
Operating Temperature -30℃ ~ +70℃
Humidity Range 5% ~ 95% RH (Non-condensing)
Certification CE Certified
Wiring N/L Input & Output

How It Works

  1. Easy Installation

    Mount the smart circuit breaker on a standard DIN rail in your electrical distribution box, connect the N/L input and output wires, and power on.

  2. WiFi Connection

    Download the Tuya Smart App, add the device, and connect to your 2.4GHz home WiFi network (5GHz not supported).

  3. Remote Control & Monitoring

    Use the app to turn power on/off, set schedules, view real-time energy data, and receive overload/overvoltage alerts.

  4. Voice Control

    Link the device to Amazon Alexa or Google Assistant for hands-free control of your connected appliances.


Package Contents

  • 1 x Tuya WiFi Smart Circuit Breaker (1P DIN Rail)
  • 1 x User Manual
  • 1 x Mounting Screw Kit

Why Choose Our Smart Circuit Breaker?

🔹 Smart Home Integration: Seamlessly fits into your Tuya-based smart home ecosystem, working with thousands of compatible devices.

🔹 Safety First: Advanced protection features prevent electrical fires and damage to your appliances.

🔹 Energy Saving: Real-time energy monitoring helps you cut down on unnecessary power usage and lower utility bills.

🔹 Easy Installation: No professional electrician required for basic installation (follow local electrical codes).

🔹 Reliable Performance: CE-certified for quality and safety, with a durable design for long-term use.


Suitable Applications

  • Home electrical distribution systems
  • Smart home automation projects
  • Commercial office power management
  • Industrial equipment control
  • Solar power system monitoring
  • Rental property remote power management

FAQ

Q: Does this require a hub?

A: No, it connects directly to your 2.4GHz home WiFi network, no hub required.

Q: Can I use it with 5GHz WiFi?

A: No, this device only supports 2.4GHz WiFi networks.

Q: Is it compatible with Alexa/Google Home?

A: Yes, it works with Amazon Alexa and Google Assistant for voice control.

Q: Can I install it myself?

A: Basic installation is simple, but we recommend hiring a licensed electrician for compliance with local electrical codes.

Q: Does it have manual control?

A: Yes, it features a one-touch manual control button for local operation, even without internet.


Contact Us

For bulk orders, technical support, or custom solutions, please contact our sales team. We offer OEM/ODM services for global partners.

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