Model LRR6 Smart WIFI Operating Circuit Breaker is an electrical terminal distribution device developed for smart and safe electricityand energy management systems in buildings, This product is an Internet of Things (loT) smart circuit breaker that uses wireless WIFI communication to control the normal operation of traditional circuit breakers, It features remote opening and closing control,local mode selection, timed opening and closing settings, and other functions.
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4P WIFI Smart MCB (Model LRR6) is an advanced IoT-enabled smart circuit breaker, purpose-built for smart power distribution, safety management, and energy optimization in commercial and industrial building systems. Engineered with stable wireless WIFI connectivity, this 4 pole smart MCB delivers seamless remote control, intelligent circuit protection, and data-driven energy management for three-phase power systems, fully addressing the core needs of project contractors, system integrators, commercial facility operators, and industrial power management teams. Unlike traditional passive circuit breakers, this commercial smart circuit breaker integrates manual and automatic control modes, supporting flexible on-site and remote operation to streamline power management for large-scale commercial and industrial projects, while complying with IEC: 60898 international standards.
This remote control industrial circuit breaker supports both local manual operation and unlimited-distance remote control via Tuya APP, enabling real-time switching, status monitoring, and fault alerts for project teams regardless of geographic location. It also supports timed on/off settings, perfect for batch power management of public areas and industrial equipment.
Exclusive for engineering projects, the protection thresholds of this DIN rail smart MCB are fully customizable, with configurable over-voltage protection and adjustable automatic reclosing time. It delivers ≤0.04S short circuit tripping and ≤0.1S overload tripping, ensuring rapid fault isolation and automatic power recovery to minimize project downtime.
The Tuya compatible 4P circuit breaker supports multiple communication protocols including Tuya WIFI, Tuya ZIGBEE, RS485, dry contact, and Mi Home WIFI, making it easy to integrate into various building automation systems and industrial control platforms for large-scale project deployment.
It fits standard DIN-rail mounting for fast installation in existing distribution cabinets, with an IP20 protection rating, <3W standby power consumption, and wide operating temperature range from -20℃ to +70℃, adapting to complex commercial and industrial environments.
Parameter | Specification Details |
Poles | 4P |
Mounting poles | 5P |
Rated current | 10A, 16A, 25A, 32A, 40A, 50A, 63A |
Rated operating voltage & frequency | 220/230VAC 50Hz |
Rated breaking capacity | 6KA |
Trip curve type | Type C, Type D |
Standby power consumption | <3W |
Supported communication | Tuya WIFI, Tuya ZIGBEE, Mi Home WIFI, RS485, dry contact |
Overload tripping time | ≤0.1S |
Short circuit tripping time | ≤0.04S |
Compliance standard | IEC: 60898 |
Control mode | Integrated manual & automatic control |
IP rating | IP20 |
Product dimension | 88.5mm×90mm×50mm |
Configurable functions | Over-voltage protection, automatic reclosing, protection threshold customization |
This commercial power management smart MCB is ideal for large-scale projects in core sectors: commercial & public infrastructure (shopping malls, office buildings, hotels, schools, retail shops), industrial & agricultural operations (factories, farms, greenhouses, breeding farms), and smart city & utility facilities (streetlights, charging stations, transportation hubs, urban parks). It enables time-sharing and zoning power control, sequential equipment start-stop, remote emergency power-off, and energy consumption optimization, reducing operational costs and improving electrical safety for project operators.
Download and register the Tuya APP on your mobile device, then log in to your account.
Complete wiring per the standard diagram: connect the upper terminal to the power supply and the lower terminal to the load, then power on the device and wait for the indicator light to activate.
10 seconds after power-on, press and hold the networking button until the WIFI indicator flashes, meaning the device has entered pairing mode.
In the Tuya APP, click the "+" icon in the top right corner to enter the device adding interface, and wait for the app to detect the device.
Select the 2.4G WIFI network for the device to connect to (5G networks are not supported), then click "Next".
Wait for the device pairing process to complete, and follow the on-screen prompts for subsequent settings.
Select the device category, set the project-specific device name, and click "Finish" to complete the setup.
It supports Tuya WIFI, Tuya ZIGBEE, Mi Home WIFI, RS485, and dry contact protocols, fully adapting to mainstream building automation and industrial control systems for batch project deployment.
Yes, the protection thresholds of this commercial smart circuit breaker are fully customizable, with adjustable over-voltage protection settings and configurable automatic reclosing time to meet diverse project needs.
It supports standard DIN-rail mounting, with a maximum installation altitude of 3000m, operating temperature range of -20℃ to +70℃, and IP20 rating for indoor installation only.

