(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

    20 amp Digital Timer Switch, 12V/24V/220V/110V

    Get a 12V DC electric timer switch at low price, 24V DC/220V AC/110V AC is also available. 20 amp weekly programmable timer switch can be used to control lighting, light boxes, neon lights, production equipment, agriculture, aquaculture, etc. 24 hour digital timer switch, 1NO+1NC contact, rail installation, strong anti-interference.
    SKU: ATO-TM-20A
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    The provided 20A digital timer switch is a programmable timer switch, comes with a built-in lithium battery, 1NO+1NC contact, and optional 12 volt, 24 volt, 220 volt and 110 volt voltages, suitable for turning on and off lights or other devices automatically.


    • Model: ATO-THC-20A
    • Type: Programmable Digital Timer Switch
    • Rated Current: 20A
    • Rated Voltage: 12V DC, 24V DC, 220V AC, 110V AC
    • Power Control and Contact: 1NO+1NC
    • Timing Error: ≤1 seconds/day (25℃)
    • Working Temperature: -10~40℃
    • Set the Switch Number: 16 ON/16 OFF
    • Power Reserve: 3 Years
    • Power Consumption: <4 Va
    • Display Device: LCD Display
    • Minimum Control Time: 1min
    • Control Time Range: 1min~168h
    • Ambient Humidity: 35~85% RH
    • Electrical Life: 105 times
    • Mechanical Life: 107 times


    • An automatic digital timer switch is used for setting the time of each day or each week to control the equipment switch.
    • The electric timer switch can be set a time of 16 set ON/OFF and also can be ON/OFF at any time.
    • It can set 18 pulses of (ringing the bell) program, also adjustable pulse duration 1s~59s.
    • Weekly programmable timer switch can set the countdown program, and also the countdown duration of 1s~59s.
    • DIN Standard Size: 35mm, Rail Mounting.
    • Built-in lithium battery, when power fails, it can be displayed working as usual.
    • Automatic correction time per week (-30 seconds≤△t≤30 seconds).

    Outline Drawing

    Timer switch outline drawing

    Wiring Diagram

    Timer switch wiring drawing


    Timer switches are commonly used in residential, commercial, and industrial settings to automate the operation of lighting systems, HVAC (heating, ventilation, and air conditioning) equipment, irrigation systems, and various other electrical devices.

    Timer switch applications

    Tips: What is a programmable timer switch?

    A programmable timer switch, also known as a digital timer switch or programmable time switch, is a type of timer switch that allows you to set specific schedules or programs for turning on and off electrical devices. It provides more flexibility and customization options compared to standard timer switches.

    A programmable timer switch typically features a digital interface with buttons or a display that allows you to input and adjust various settings. These settings include the specific times and days when you want the switch to activate or deactivate the connected device.

    Write your review for 20 amp Digital Timer Switch, 12V/24V/220V/110V
    • Only registered users can write reviews
    • Bad
    • Excellent