Description

City Power ⇆ Generator/PV

WIFI smart dual power switch by TUYA/SmartLife

General

TOMZN TOQ7S is a WiFi-enabled smart Automatic Transfer Switch (ATS) compatible with the TUYA/SmartLife app. It allows remote control of power switching between City Power and Generator/PV sources, along with functions such as countdown, timer, and relay status monitoring.

As an upgraded version of the TOQ7e series, the TOQ7S features a critical improvement: the APP status does not change with the power source switching. This ensures that when Source A (City Power) loses power and then restores, the device automatically switches back to Source A — a function the TOQ7e cannot perform.

Key operating logic:

When ON (Source A) is selected on the APP, the TOQ7S operates as a standard ATS: power loss on Source A triggers an automatic switch to Source B (Generator/PV). When Source A is restored, the device automatically switches back to Source A.
The APP status remains consistent with the user’s selection, not with the actual switching event.

Product Parameter

Rated supply voltage Us: Three-phase Four-wire 220V-230V 50Hz-60Hz

Working condition: 85% Us~110% Us

Switching time: <50ms

Action time: <50ms

Rated impulse withstand voltage (kV):8kV

Electrical Life: 2000 times

Mechanical Life: 5000 times

Noted:

1.The product works with L+N 220-230V 50-60Hz.

2.The WIFI chip is powered by source A. When source A loses power, the product cannot switch via TUYA/SmartLife.

3.The status of the APP will not change along with the switching of the device status. When source A is selected, even after source A loses power and then reboots, it will still switch back to source A. (TOQ7e is unable to achieve this)