3-Phase WiFi Reclosing Protector: Tuya Smart, 10 Protections, PV Meter

Guideway Three‑Phase WiFi Reclosing Protector

This Guideway 3P4W WiFi Photovoltaic Smart Meter is a DIN‑rail mounted three‑phase reclosing protector and energy monitor in one unit. It offers Four Advantages – Tuya WiFi intelligent control, 10 alarm protection mechanisms, real‑time APP data sampling, and a compact size for easy installation. With Tuya WiFi Smart Connection, there's no need for on‑site checks; simply open your phone and connect wirelessly to view all data. Ideal for photovoltaic systems, distribution cabinets, industrial equipment, and commercial power monitoring – monitor and control your three‑phase power from anywhere.

Main Interface – Guideway Three‑Phase WiFi Reclosing Protector
The front panel features a large LCD screen showing real‑time data: 0.05 kWh (energy), 223.4 V (voltage), 0.0 V, 0.0 A, and 0.0 mA (per‑phase readings). Key indicators include: WiFi, REV (reverse power), Relay status, and CE / FC / tuya certifications. The terminal block is clearly labeled with 20 positions (1‑10 and 11‑20) for easy wiring.

Four Advantages of Choosing a Rail Meter

1. Tuya WiFi intelligent control – remote monitoring and operation.

2. Various protections, stable performance – comprehensive safety.

3. Mobile APP real‑time data collection – view data anytime.

4. Compact size, easy to install – fits standard DIN‑rail boxes.

Installation Method – Guide Rail Mounting
Standard guide rail installation – mounts directly onto DIN rails in distribution cabinets. Terminal connections are clearly marked: positions 1‑10 (A/B/In+/In‑/13‑/12‑/11‑/10‑ etc.) and positions 11‑20 (N/L/D1/DCR/R0/R1/Vn/V3/V2/V1). The color LCD shows 0.06 kWh, 223.4 V, 0.0 V, 0.0 A, 000 mA with WiFi, REV, Relay, CE, FC, and tuya indicators.

No‑Separation Design for Convenient Wiring
The integrated design eliminates separate components – it conducts real‑time measurement and display of electrical parameters such as combined electrical energy of electrical circuits. Simplifies installation and reduces wiring errors.

Product Size
Compact dimensions: 88mm × 72mm × 58mm – fits neatly into standard distribution boxes without occupying excess space.

Large LCD Display
A large‑size LCD screen with big fonts – measurement results at a glance. Displays: 0.06 kW/h, 223.4 V, 0.0 V, 0.0 A, and 000 mA. Indicators: Relay, WiFi, CE, FC, and tuya. Terminal block clearly labeled.

Tuya WiFi Smart Connection
No need to check on site – just turn on your phone and connect wirelessly. View all data quickly and conveniently via the Tuya/Smart Life app. The interface shows per‑phase readings: L1, L2, L3 with real‑time values.

Flame‑Retardant Material
The shell uses thickened ABS flame‑retardant material – avoids fire hazards caused by meter overloading. Safe and durable for long‑term use. Display shows 0.06, 223.4, 0.0, 0.0, and 0.0 mA readings.

Various Angles
Multiple product views showing the device from different angles – with clear terminal labeling and LCD display. Demonstrates robust build quality and professional design.

Alternate View
Additional product shots showing the device in various configurations – highlights the clean layout, bright LCD screen, and clearly marked terminals (1‑10 and 11‑20).

• 10 alarm protection mechanisms – Overvoltage, undervoltage, overcurrent, earth leakage, reverse power, frequency anomaly, phase loss, temperature overload, surge, and short‑circuit protection – with automatic trip and reclosing.

• Tuya WiFi smart control – Remote monitoring and operation via mobile APP – no site visits needed.

• Three‑phase real‑time monitoring – Per‑phase voltage, current, energy, leakage, and reverse power – all on one large screen.

• Large LCD display – Big fonts, clear readings – measurement results at a glance.

• No‑separation design – Makes wiring more convenient and reduces installation complexity.

• Flame‑retardant ABS shell – Thickened housing prevents fire hazards from overloading.

• Compact size – 88×72×58mm – fits standard distribution cabinets.

• Photovoltaic ready – Reverse power (REV) detection for solar systems – ideal for net‑metering.

• Photovoltaic (solar) power systems – Monitor generation, detect reverse power, track energy export.

• Distribution cabinets – Centralized circuit protection and energy metering for industrial/commercial buildings.

• Industrial equipment – Three‑phase motor and machinery power monitoring and protection.

• Commercial buildings – Real‑time consumption tracking for energy management and cost allocation.

• Large residential properties – Homes with three‑phase power supply – protect and monitor whole‑house electricity.

• Manufacturing / factories – Equipment protection from voltage fluctuations and overloads.

1. What is a three‑phase reclosing protector?

It is a smart circuit protection device that monitors voltage, current, energy, leakage, and reverse power across three phases. It automatically trips when faults occur and automatically recloses when conditions return to normal.

2. What are the 10 alarm protection mechanisms?

Includes: overvoltage, undervoltage, overcurrent, earth leakage, reverse power (REV), frequency anomaly, phase loss, temperature overload, surge, and short‑circuit protection – all with automatic trip and reclosing.

3. Does it work with the Tuya/Smart Life app?

Yes. Connect via WiFi 2.4GHz to the Tuya or Smart Life app for real‑time data, remote ON/OFF, and instant alarm notifications. No on‑site inspection needed.

4. What does the “REV” indicator mean?

REV stands for reverse power – it detects when power flows backward (e.g., solar energy being exported to the grid). Essential for photovoltaic systems and net‑metering applications.

5. Can I install this myself?

Installation requires basic three‑phase electrical knowledge. The compact DIN‑rail design fits standard distribution boxes with clear terminal labeling. We recommend a qualified electrician for safe installation.