This 3P remote smart MCB (miniature circuit breaker) is a purpose-built intelligent power distribution solution for industrial and commercial three-phase electrical systems.
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Powered by the Tuya smart ecosystem, this industrial-grade WiFi smart circuit breaker integrates remote wireless control, high-precision energy metering, and comprehensive circuit protection, with optional RS485 bus compatibility for seamless integration with industrial automation systems. Designed to replace traditional non-smart MCBs, it delivers unified safety protection, remote operation and maintenance (O&M), and energy consumption optimization for high-demand commercial deployments, with a rated voltage of AC400V for 3P configurations and a wide rated current range from 10A to 100A to fit diverse industrial load requirements.
Engineered for harsh industrial environments, this industrial smart MCB offers a rated short-circuit breaking capacity of 3kA and 6kA options, with a 100A shell frame rated current for reliable overload and short-circuit protection. It features residual current protection with 30mA and 100mA optional thresholds, tripping within ≤0.1s to prevent electric shock and fire hazards. A built-in safety lock prevents unauthorized or accidental operation during line maintenance, ensuring compliance with industrial safety protocols.
Based on Tuya’s stable WiFi connectivity, this RS485 compatible smart circuit breaker enables remote on/off control via mobile app from anywhere, with real-time device offline and fault alarm notifications. It supports one mobile terminal managing multiple devices, or multiple authorized users controlling one device, making it ideal for centralized management of large-scale industrial facilities. It is also compatible with Amazon Alexa and Google Assistant for voice control, with flexible Tap-to-Run and automation scene settings to streamline commercial O&M workflows.
With built-in high-precision metering modules, this 3P smart circuit breaker delivers real-time energy consumption tracking, with ultra-low standby power consumption ≤2W to minimize auxiliary power loss. The wide range of optional rated current specifications allows for customized configuration based on specific load requirements, enabling facility managers to implement granular energy usage auditing, identify wasteful consumption, and reduce long-term operational costs for industrial and commercial sites.
Parameter | Value |
Rated voltage | AC230V(1P、2P)/AC400V(3P、4P) |
Rated current | 10A、16A、20A、25A、32A、40A、50A、63A、80A、100A |
Frequency | 50/60HZ |
Power consumption | ≤2W |
Rated short-circuit breaking capacity | 3kA;6kA |
Rated current of shell frame class | 100A |
Residual action current | 30mA、100mA |
Residual current operation time | ≤0.1s |
Ideal for three-phase power distribution of production lines, workshop equipment, and heavy industrial machinery, providing remote fault tripping and real-time load monitoring to reduce unplanned downtime.
Suitable for power distribution systems of commercial complexes, office buildings, data centers, and logistics parks, enabling centralized O&M and energy management for multi-circuit electrical systems.
Perfect for protection and control of three-phase loops in grid-tied and off-grid photovoltaic (PV) systems, energy storage stations, and distributed power generation facilities.
Before power-on, always verify that the rated voltage of the industrial smart MCB matches the circuit voltage. For line maintenance, strictly unlock the yellow safety lock or disconnect the superior power supply to avoid electric shock hazards.
This device only supports upper incoming line and lower outgoing line wiring; lower incoming line is strictly prohibited. Connect the three live wires to the corresponding 3P terminals, and confirm firm wiring through the visual window to prevent poor contact.
After wiring is complete, perform a manual on/off test to confirm normal mechanical operation. Power on the device, complete network pairing via the Tuya Smart APP, and configure remote control permissions, alarm thresholds, and automation rules as required.
Yes, this RS485 compatible smart circuit breaker supports standard RS485 bus communication, making it fully compatible with mainstream industrial automation and SCADA systems for seamless integration into existing commercial deployments.
It offers two rated short-circuit breaking capacity options: 3kA and 6kA, which meet the safety requirements of most industrial and commercial three-phase power distribution scenarios.
Yes, the Tuya platform supports multi-user device sharing and permission management, allowing authorized team members to access and control the WiFi smart circuit breaker from multiple mobile terminals simultaneously, optimized for commercial team-based O&M.
