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This LCD din rail smart MCB is a high-performance intelligent power management solution designed for commercial buildings, distributed facilities, and smart electrical systems. Compliant with CE and IEC 60898 international standards, this Tuya WiFi smart circuit breaker integrates a 4-digit high-definition LCD display, real-time power metering, full-dimensional circuit protection, and remote wireless control, powered by the Tuya Smart ecosystem. Unlike basic smart breakers with no on-site display, it delivers instant visibility of critical electrical parameters without app access, making it the ideal choice for commercial users seeking simplified O&M, granular energy control, and reliable power protection, with 1P to 4P pole configurations and 1A to 63A adjustable rated current.
The standout feature of this metering smart MCB is its integrated LCD screen, which displays real-time voltage, current, active power, and cumulative energy consumption (kWh) at a glance. It supports energy statistics covering hourly, daily, monthly, and annual cycles, with a measurement error of ≤1% for accurate commercial energy auditing. On-site maintenance teams can quickly check circuit status without opening a mobile app, drastically reducing troubleshooting time for commercial facilities.
This adjustable smart circuit breaker offers fully customizable protection thresholds for leakage current (10-99mA), overcurrent, overvoltage (120-300V), undervoltage (80-210V), and over-temperature, with leakage faults tripping within ≤0.1s to prevent equipment damage and safety hazards. It features configurable auto-reclosing functionality, with adjustable reclose time (1-99s) and reclose times (1-30 times), automatically restoring power once faults are resolved. This minimizes unplanned downtime and manual on-site maintenance, especially for unattended commercial sites.
With built-in WiFi connectivity, this din rail smart MCB enables remote on/off control, countdown timing, cycle timing, and inching switch functions via the Tuya Smart APP. It supports multi-user device sharing and centralized multi-device management, with compatibility for Amazon Alexa and Google Home voice control. Designed for standard 35mm DIN rail mounting, it fits into all standard distribution boxes without complicated wiring, enabling fast, low-cost retrofitting for existing commercial electrical systems, ideal for large-scale chain deployments.
Specifications | Parameter |
Network | Tuya Smart |
Rated voltage | AC110/230V |
Operating Voltage | AC80V-300V (single phase) |
Power | Display KW |
Rated current setting range | 1.0-63A |
Overvoltage setting range | 120-300V (adjustable) |
Undervoltage setting range | 80-210V (adjustable) |
Leakage protector setting range | 10-99mA (adjustable) |
Temperature measurement | 10-85°C (adjustable) |
Energy display range | 0-99999.9kWh |
Energy statistics cycle | Hour/day/month/year |
Power factor | Display |
Frequency | 50/60Hz |
Metered prepayment | Recharge battery |
Zero battery reminder | With display |
Operating temperature | -30°C to 70°C |
Timing function | APP: Countdown/Timing/Cycle Timing/Inching Switch |
Power off memory | APP: Normally open/ normally closed/ memory |
Reclosing time | 1-99 seconds |
Number of reclosing | 1-30 times |
Cause of issue | APP fault check |
APP share | Support multi-person sharing |
Password setting | Initial password 0000 |
Installation | 35mm guide rail |
Electrical life | 10^5 times |
Mechanical life | 10^6 times |
Protection level | IP20 |
Pollution level | 3 |
Altitude | <2000m |
Working humidity | ≤50% at 40°C (no condensation) |
Synchronization time between data and device | Up to 20 seconds (depends on network speed) |
Measurement error | 1% |
Overvoltage & Undervoltage trip delay | 0.5s |
Reset/Start delay | 10s-99s |
Voltage measurement accuracy | 1% (not exceeding 1% of the total range) |
Rated insulation voltage | 400V |
Output contact | 1NO |
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Perfect for decentralized power management of chain retail stores, supermarkets, and catering outlets, enabling remote control of lighting and equipment, unified energy statistics, and fault alarms for multi-site commercial portfolios.
Ideal for tenant sub-metering, intelligent load control, and centralized O&M in office buildings, shared workspaces, and commercial parks, reducing energy waste and simplifying property management workflows.
Suitable for communication base stations, unmanned data rooms, and distributed photovoltaic systems, with auto-reclosing functionality to minimize on-site maintenance and maximize uptime for remote commercial facilities.
Optimized for pre-paid power management and remote access control in long-term rental apartments and commercial rental properties, with password protection and power-off memory functions for simplified property management.
Before installation, confirm the circuit voltage falls within the AC80V-300V operating range, and ensure the installation environment is within -30℃ to 70℃ with no condensation. Verify compatible mounting space for the 35mm standard DIN rail in the distribution box.
Strictly follow the terminal markings: connect the power supply to the IN terminals and the load to the OUT terminals, with clear separation of live and neutral lines. Ensure the terminal screws are tightened firmly to avoid loose connections and overheating risks.
After power-on, confirm the LCD screen displays normal electrical parameters. Press and hold both function keys for 5 seconds to enter network configuration mode, complete pairing via the Tuya Smart APP, and customize protection thresholds, timing tasks, and alarm notifications based on commercial usage requirements.
Yes, all core protection thresholds including leakage current, overvoltage, undervoltage, and overcurrent are fully adjustable, allowing tailored configuration for diverse commercial use cases from retail stores to remote communication base stations.
The on-site LCD screen displays real-time voltage, current, active power, and cumulative energy consumption (kWh). Additional data including power factor, frequency, and historical energy statistics are available via the Tuya Smart APP for in-depth commercial energy management.
Absolutely. This Tuya WiFi smart MCB supports centralized multi-device management and multi-user permission sharing, making it the perfect choice for chain stores, multi-building office parks, and distributed commercial facilities requiring unified, low-cost operation and maintenance.
