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    Picture of 20~100A Dual Power WiFi Automatic Transfer Switch, 2P/3P/4P
    Picture of 20~100A Dual Power WiFi Automatic Transfer Switch, 2P/3P/4P
    Picture of 20~100A Dual Power WiFi Automatic Transfer Switch, 2P/3P/4P
    Picture of 20~100A Dual Power WiFi Automatic Transfer Switch, 2P/3P/4P

    20~100A Dual Power WiFi Automatic Transfer Switch, 2P/3P/4P

    2 review(s) | Add your review
    SKU: PH-ATS-NLQ4
    $110.54
    ● PC‑class automatic transfer switch is available in 2/3/4P pole versions for different power‑supply layouts. ● Ensure safe isolation during dual‑source power switching. ● Supports 220V and 380V AC input and works under 50Hz or 60Hz power frequency. ● Covers 16A‑125A to match loads of various power consumption levels.
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    Overview

    WiFi automatic transfer switch offers reliable dual‑source power change‑over for household, office and small backup‑power applications. Built to PC‑class safety standards, it delivers stable millisecond‑range power switching and flexible operation options to guard your loads against mains power failure. With multiple pole and current specifications available, this unit can easily fit most common low‑voltage backup‑power projects and bring you worry‑free power‑supply protection.

    Dual Power WiFi ATS Features

    Feature

    • WiFi Remote: Integrated WiFi module allows remote status checking and switching control beyond local physical operation.
    • Rapid Transfer: Millisecond‑level switchover time reduces power‑off interruption for connected critical equipment.
    • Dual‑Mode Control: Supports fully‑automatic running for daily use and manual override for maintenance work.
    • Wide Compatibility: Works with two independent AC power sources including mains grid, solar or backup power supply.
     

    Details

    1. Flame‑retardant Housing: High‑strength flame‑retardant plastic housing provides insulation and anti‑burn performance for long‑term stable operation.
    2. Manual Override Knob: Physical switch knob for manual power switching during maintenance or power‑system inspection.
    3. Status Indicator Lights: Dual LED indicator lights show real‑time working status of main power and standby power sources.
    Dual Power WiFi ATS Details

    Dual Power WiFi ATS Dimensions(Unit: mm)

    • 2-Pole Wiring

    2P Dual Power WiFi ATS Dimensions

    • 3-Pole Wiring

    3P Dual Power WiFi ATS Dimensions

    • 4-Pole Wiring

    4P Dual Power WiFi ATS Dimensions

    Dual Power WiFi ATS Wiring Diagram

    • 2-Pole Wiring

    2P Dual Power WiFi ATS Wiring Diagram

    • 3-Pole Wiring

    3P Dual Power WiFi ATS Wiring Diagram

    • 4-Pole Wiring

    4P Dual Power WiFi ATS Wiring Diagram

    Specs
    Operating Voltage 220V (2P)/380V (3/4P)
    Operating Current 20A~100A
    Operating Frequency 50Hz/60Hz
    Number of Poles 2P/3P/4P
    Transfer Time Millisecond Level
    Operation Mode WIFI Control / Automatic / Manual
    Utilization Category PC Class
    Application
    ATS for Home

    Home

    ATS for Commercial Office Building

    Commercial Office Building

    ATS for School

    School

    ATS for Hospital

    Hospital

    FAQ

    Q1: Can this ATS start a diesel generator automatically when mains power fails?

    This automatic transfer switch only completes power switching between two incoming power sources, it does not provide dry‑contact signal output to start or stop the generator, you can use a generator as the backup power source but need a separate generator automatic transfer switch to handle start‑stop functions.

    Q2: What is the switching time of this PC‑class ATS?

    This PC‑class automatic transfer switch operates at millisecond‑level transfer time, it supports WIFI control, automatic and manual operation modes, and fits for 220V/380V systems with available poles of 2P,3P and 4P.

    2 review(s)
    4.5 2
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    Nathan | 9/4/2026 8:58 AM
    Wi-Fi control is handy, but know the limits – still a great buy
    I bought this Wi-Fi version for my Florida home generator setup, and the millisecond switching is a real upgrade – my PC and router no longer reboot during outages, which alone makes it worth the $110 price tag (cheaper than the non-WiFi model!). The app lets me check status and toggle manually from my phone, super convenient when I'm traveling or just too lazy to walk to the utility room.
    Tito | 8/31/2026 9:32 AM
    Reliable WiFi ATS Automatic Transfer Switch for Off Grid Solar Backup
    This WiFi dual power automatic transfer switch performs flawlessly for my home solar backup system. Millisecond fast transfer prevents power drops, with automatic, manual and remote WiFi control. Sturdy flame retardant housing and clear LED status lights. A solid upgrade for reliable backup power switching.
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