Circuit breaker TUYA HS084042 1P Wi‑Fi 63A — single-pole smart MCB with Wi‑Fi control

The TUYA HS084042 is a single-pole smart circuit breaker with integrated 2.4 GHz Wi‑Fi and RS485 interface, rated for up to 63 A at AC 230 V. Designed for DIN-rail installation, the device provides protection against overloads and short circuits while adding remote control and energy metering for household and light-commercial circuits. It works with the TuyaSmart and SmartLife apps (Android, iOS) and supports voice assistants such as Google Assistant and Amazon Alexa. The set includes two Wi‑Fi antennas and an RS485 adapter.

Advantages

This single-pole smart MCB combines standard electrical protections (overload, short circuit, overvoltage, leakage and high temperature) with remote switching and built-in energy measurement. Real-time readings for voltage, power, temperature and energy are available in the app, and consumption thresholds, schedules and automation scenes can be configured. The device is DIN-rail mountable, includes mechanical locking and a manual ON/OFF lever, and features a Wi‑Fi LED and network detection button for easy setup. RS485 connectivity expands integration options for controllers and automation systems.

Suitable for

• Remote switching and monitoring of lighting circuits
• Control and metering of sockets and small appliance circuits
• Automation of water heaters, HVAC zones and other single-phase loads
• Integration into home or small commercial automation scenes

Key specifications

• Number of poles: 1P
• Rated voltage: AC 230 V
• Maximum current: 63 A
• Frequency: 50/60 Hz
• Breaking capacity: up to 6 kA
• Wi‑Fi: 2.4 GHz (802.11 b/g/n)
• Interfaces: RS485
• Protections: overload, short circuit, overvoltage, leakage (residual current), high temperature
• Apps: TuyaSmart / SmartLife (Android, iOS)
• Voice control: Amazon Alexa, Google Assistant
• Operating temperature: -25°C to +70°C
• Mechanical lifespan: >10,000 cycles; Electrical lifespan: >6,000 cycles
• Housing material: PC V0 (flame-retardant)
• Installation: DIN rail 35 mm
• Dimensions: 36 × 74 × 100 mm; Weight: 195 g
• Set includes: 2× Wi‑Fi antennas, RS485 adapter
• Certifications: CE, RoHS, IEC60898-1

How to use

Mount the TUYA HS084042 on a standard 35 mm DIN rail and make electrical connections according to local wiring regulations and the product’s terminal markings. Install the two Wi‑Fi antennas and configure network access using the TuyaSmart or SmartLife app on an Android or iOS device. Register the device in the app, assign it to a room or group, and optionally link with Amazon Alexa or Google Assistant for voice control. Use the app to view real‑time measurements, set timers, schedules, consumption thresholds and automation scenes. For integration with external controllers, connect via the RS485 interface following the manufacturer’s wiring and protocol guidelines.

Usage recommendations

Install and commission this device only by a qualified electrician. Ensure the breaker’s rated current and breaking capacity are suitable for the protected circuit. Use the app settings to configure safety thresholds and automatic shutdowns, and enable mechanical locking when performing maintenance.