Circuit breaker TUYA HS084073 3P+N 63A — three-pole + neutral, 63 A

Circuit breaker TUYA HS084073 3P+N 63A is a DIN-rail mountable smart switch designed for three-phase installations with neutral. It provides overload and short-circuit protection while adding remote control and energy monitoring via 2.4 GHz Wi‑Fi using the TuyaSmart or SmartLife apps. The device includes an RS485 interface, two Wi‑Fi antennas, a manual ON/OFF lever, mechanical lock, network detection button and LED, and supports voice control through Google Assistant and Amazon Alexa.

Advantages

The TUYA HS084073 combines conventional protection functions (overload, short circuit, overvoltage, residual current/leakage, high temperature) with smart capabilities such as real‑time measurement of voltage, current, power and energy, remote switching, programmable schedules, scenes and automations. It is DIN‑rail compatible for easy installation, offers RS485 connectivity for integration with other systems, and includes energy metering and reporting features suitable for monitoring household or small industrial consumption.

Suitable for

• Three-phase residential distribution boards with neutral conductor
• Small industrial or commercial panels requiring remote switching and energy monitoring
• Home automation setups using TuyaSmart or SmartLife and voice assistants
• Applications needing centralized protection and consumption accounting

Key specifications

• Model: TUYA HS084073 — 3P+N
• Rated current: 63 A
• Rated voltage: AC 400 V
• Frequency: 50/60 Hz
• Breaking capacity: up to 6 kA
• Wi‑Fi: 2.4 GHz (802.11b/g/n); includes 2 antennas
• Interfaces: RS485; app control via TuyaSmart / SmartLife (Android, iOS)
• Voice control: Amazon Alexa, Google Assistant
• Protections: overload, short circuit, overvoltage, leakage (residual current), high temperature
• Mechanical lifespan: >10000 operations; Electrical lifespan: >6000 operations
• Housing: PC V0 (flame‑retardant); Installation: 35 mm DIN rail
• Operating temperature: -25°C to +70°C
• Dimensions & weight: 89 x 74 x 100 mm; 502 g
• Certifications: CE, RoHS, IEC60898-1
• Set includes: 2x Wi‑Fi antennas and RS485 adapter

How to use

Mount the TUYA HS084073 on a 35 mm DIN rail and perform wiring according to the three‑phase plus neutral diagram in the installation manual. Install the two Wi‑Fi antennas, connect RS485 if required, and power the unit. Add the device in the TuyaSmart or SmartLife app via 2.4 GHz Wi‑Fi, follow on‑screen instructions to name and configure circuits, and enable voice control through the chosen assistant if needed. Use the manual lever or app to switch circuits; view real‑time voltage, power and energy readings in the app and export consumption reports where supported.

Usage recommendations

Use the device within its rated current and voltage limits and ensure correct wiring by a qualified electrician. Configure consumption thresholds and automatic shutdowns in the app to protect connected equipment. For reliable wireless operation, place antennas to minimize obstructions and ensure the control network is 2.4 GHz. Do not overload beyond 63 A and perform maintenance with the mechanical lock engaged to prevent accidental switching.