STY-T4P Tuya Smart Wi-Fi 3 Phase 4 Wire 4P Circuit Breaker

• Wireless Protocol: Wi-Fi (Zigbee is optional)
• Current: 1-63A
• Line Voltage(L to L): 180V - 450V
• Phase Voltage(L to N): 3 × 110V 60Hz | 3 × 220V 50Hz
• Poles: 3P + N (Triple Pole + Neutral)

• Tuya Wi-Fi Smart Control - Remote on/off, schedule timers and scene automation via Tuya App. No extra gateway required.
• 3 Phase 4 Wire 4P Design - Built for three-phase four-wire power systems, suitable for commercial, farm and workshop loads.
• Real-time Power Monitoring - Track voltage, current, power and energy consumption. View historical data on the app.
• Multiple Electrical Protection - Overvoltage, undervoltage, overload and overcurrent protection with automatic trip alarm.
• Standard DIN Rail Mount - Easy installation on standard DIN rail, fits most distribution boxes.
• Fault Alert Notification - Instant push alerts on your phone once an electrical fault is detected.
• Device Sharing - Authorize multiple users to manage the breaker together for team operation.
• Reliable & Stable Performance - Solid housing, stable Wi-Fi connection, long service life for continuous heavy-duty use.
• Manual Local Operation - Keep local control available even when the network is offline.

1. Cut off power before installation.
2. Download the Smart Life App. Scan the QR code, or search for "Smart Life" on the App Store or Google Play to download.
3. Your home Wi‑Fi name and password should contain only letters and numbers. Special symbols are not supported.
4. Proper electrical knowledge is required. Ensure correct wiring. If you are unsure, please hire a professional electrician.

Please download the user manual and other related documents from our support center.

• 1 × STY-T4P Tuya Smart Wi-Fi 3 Phase 4 Wire 4P Circuit Breaker
• 1 × Instruction User Manual