Atorch KWS-303WF — 40A Wi-Fi Relay with Display and Protection

Опубликовано 10 июля 2026, 18:56

The Atorch KWS-303WF is a smart DIN-rail Wi-Fi relay with a color display, energy monitoring, remote control through Tuya Smart / Smart Life, and adjustable protection settings. The device supports loads of up to 40A and displays voltage, current, power, energy consumption, mains frequency, power factor, and temperature from an external sensor.
In this review, we will look at the package contents and design, on-device controls, protection settings, and the relay menu. We will also take the device apart and examine the power section, internal relay, busbars, circuit board, and Wi-Fi module.
Then we will connect the Atorch KWS-303WF to Tuya, check the graphs, timers, and automations, test its Home Assistant integration, and run practical tests of measurement accuracy, control speed, and protection response.

👉 Atorch KWS-303WF — s.click.aliexpress.com/e/_c3FQ... or alli.pub/7c6trb
👉3 phase WIFI Power Energy Meter AC Monitor — s.click.aliexpress.com/e/_c4bk... or alli.pub/7c6tr4
👉 Non-Contact Voltage Detector - s.click.aliexpress.com/e/_c4l3... or alli.pub/7c6trw

Chapters:
00:00 — Smart Wi-Fi Relay Atorch KWS-303WF
00:50 — Main Specifications
01:37 — Package Contents and Design
02:40 — Relay Settings
05:11 — Teardown and Internal Components
06:04 — Connecting to Tuya Smart, Controls, Graphs and Timers
08:10 — Tuya Automations
09:29 — Home Assistant
10:12 — Tests Overvoltage Overcurrent protection test
12:03 — Conclusion

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#Atorch #KWS303WF #Tuya #HomeAssistant #SmartHome #WiFiRelay #DINRail #EnergyMonitor #Lubops