LIEW 4P 100A Tuya WiFi 3-Phase Smart Protector & Energy Meter

The Ultimate All-in-One Smart Protector for 3-Phase Systems.

Managing a 3-phase electrical system has never been this intelligent. The 4P 100A Tuya WiFi Three-Phase Smart Protector & Energy Meter combines a smart circuit breaker, energy meter, protection relay, and prepaid meter into a single DIN-rail device — controlled remotely via the Tuya/SmartLife app, voice assistants, or manually on-site. With auto-reclosing after fault recovery, your system manages itself without attended intervention.

✅ Key Benefits

• 4 Control Methods — Remote app (Tuya/SmartLife), voice control (Alexa, Google, Alice), programmable timer schedule, and manual key/handle control.
• Real-Time Energy Monitoring — View live current (A), voltage (V), leakage (mA), power (kW), energy (kWh), and temperature (°C) on your phone.
• Auto-Reclosing — Automatically reconnects after a fault clears — no manual reset needed. (Exception: trips 3 times on leakage = manual reset required for safety.)
• Adjustable Over-Voltage Protection — 250–400V (default 275V) with configurable action and recovery times.
• Adjustable Under-Voltage Protection — 150–190V (default 170V) to protect against low-voltage damage.
• Adjustable Over-Current Protection — 1–100A (default 63A) to prevent overloads.
• Leakage Current Protection — 10–100mA adjustable (default 50mA) for earth fault safety.
• Temperature Protection — Alarm at 50–90°C, trip at 60–100°C — prevents overheating damage.
• Prepaid Metering Mode — Set electricity credit limits — ideal for landlords managing tenant billing.
• Device Sharing — Share access with family or team members via the app.
• Works Without WiFi — Full local manual control via keys and handle even without internet.

📋 Technical Specifications

📦 What's in the Box

1× 4P 100A Tuya WiFi Three-Phase Smart Protector & Energy Meter

🛡️ Why Choose Energy Hub?

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