This Single‑Phase WiFi Reclosing Protector is a DIN‑rail smart circuit protector that combines 11 functions into one compact device.It replaces leakage switches, timers, over/under‑voltage protectors, circuit breakers, energy meters, thermostats, remote switches, voltmeters, ammeters, contactors, thermal relays, and power meters.Features Tuya WiFi smart control, 10 alarm protection mechanisms, real‑time APP data sampling, color LCD display, and leakage protection.Perfect for household distribution boxes, photovoltaic systems, rental apartments, and small commercial spaces – monitor and control your power remotely from your phone.

Image 1: Guideway Single‑Phase WiFi Reclosing Protector – Main Display
Brand CHULYI, single‑phase smart reclosing protector. The color LCD screen shows:

• 0.00 kWh (energy consumption)

• 0.00 / 49.9 Hz (frequency)

• 213.6V / 0.00 (voltage & current)

• 0.00 / 034 mA (leakage current)

• REV (reverse power indicator)
  Key features highlighted: Tuya WiFi intelligent control, 10 alarm protection mechanisms, mobile APP real‑time data sampling, color display, and leakage protection.

Image 2: Why Choose a Rail Meter – Four Advantages

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

2. Multiple protections, stable performance – comprehensive safety.

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

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

Image 3: Wiring Diagram – Single‑Phase Connection
Complete single‑phase wiring:

• Live in / Neutral in (input side)

• Live out / Neutral out (output side)
  Terminals clearly labeled: L1, WiFi, REV, CE, FC, LEAKAGE, OK – simple for electricians.

Image 4: 11‑in‑1 Smart Protector
One product, multiple functions – replaces more products. Eliminates the need for:

• Leakage switch

• Timer

• Over/under‑voltage protector

• Circuit breaker

• Energy meter

• Thermostat

• Remote switch

• Voltmeter & ammeter

• Contactor

• Thermal relay

• Power meter

Image 5: Color LCD Display
Large‑size LCD screen – large screen, large font, measurement results at a glance. The color display shows:

• 0.00 kWh (energy)

• 0.00 / 49.9 Hz (frequency)

• 213.6V / 0.00 PF (voltage & power factor)

• 0.00A / 034 mA (current & leakage)

• Indicators: REV, WiFi, CE, FC, LEAKAGE, tuya, OK

Image 6: Monitor Real‑Time Data Anytime, Anywhere
Monitor data from anywhere via the app – no need to be on site. The app interface shows:

• 0.00 / 0.00.49.9 / 213.6v 0.00 / 0.00.034mA

• 0.15 (total active energy – forward)

• Additional metrics for complete overview.

Image 7: Tuya WiFi Smart Connection
No need to check on site, just open your phone and connect wirelessly – view data quickly and conveniently. Connect via Tuya/Smart Life app for real‑time access from anywhere.

Image 8: Flame‑Retardant Material
Thickened ABS flame‑retardant shell avoids fire hazards caused by overload. The robust housing ensures safety even under heavy load.

Image 9: Multiple Screen Display Examples
Various screen readings demonstrating clear visibility under different measurement states – all with large fonts on the color LCD.

• 11‑in‑1 functionality – One device replaces leakage switches, timers, breakers, energy meters, thermostats, remote switches, voltmeters, ammeters, contactors, thermal relays, and power meters.

• 10 alarm protection mechanisms – Overvoltage, undervoltage, overcurrent, 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.

• Color LCD display – Large screen, large font – measurement results at a glance.

• Real‑time data sampling – Monitor voltage, current, energy, frequency, leakage, and PF anytime, anywhere.

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

• Easy installation – Compact DIN‑rail design, simple single‑phase wiring.

• Photovoltaic ready – Reverse power (REV) detection for solar systems.

• Household distribution boxes – Protect home circuits and monitor energy usage.

• Photovoltaic (solar) systems – Monitor generation and detect reverse power.

• Rental apartments – Remote power control and consumption monitoring.

• Small commercial spaces – Shops, restaurants, offices – real‑time energy management.

• Workshops / studios – Protect equipment from voltage fluctuations.

• Smart home integration – Voice and app control via Tuya ecosystem.

1. What does “11‑in‑1" mean?
It replaces 11 traditional devices: leakage switch, timer, over/under‑voltage protector, circuit breaker, energy meter, thermostat, remote switch, voltmeter, ammeter, contactor, thermal relay, and power meter – all in one compact unit.

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 – 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 alarm notifications.

4. What does the “REV" indicator mean?
REV stands for reverse power – it detects when power flows backward (e.g., solar export to grid). Useful for net‑metering and photovoltaic systems.

5. Can I install this myself?
Installation requires basic electrical knowledge for single‑phase wiring (Live + Neutral). The compact DIN‑rail design fits standard distribution boxes. We recommend a qualified electrician if unsure.