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        Learn more by watching our EATON TSQD1NO | Single Pole Timer 24Hr 16Amp Analogue N/O 144hr Battery Backup video.

        Additional related video.

        Eaton | Single Pole Timer 24Hr 16Amp Analogue N/O | DIN Rail

        The Eaton TSQD1NO is a 24-hour analogue timer rated for single-pole operation at 16A 230V AC, designed for DIN rail mounting in switchboards and distribution boards. The TSQD1NO controls loads up to 16 amps with a single normally open (N/O) contact and provides 72 hours of battery backup to maintain timing during power loss. It adjusts in 15-minute intervals across a 24-hour cycle and complies with IEC/EN 61439 design verification standards.

        Electricians specify the TSQD1NO for load control where a simple, unprogrammed on/off schedule is needed — heating systems, pump cycles, lighting schedules, or equipment duty cycles. The analogue dial is rugged and glance-readable on site, requiring no software or complex configuration. Battery backup keeps the timer running through power cuts, so schedules remain intact without re-programming after supply restoration. A single 17.5mm-wide module fits standard DIN rails alongside circuit breakers and RCDs, occupying minimal space in tight switchboards.

        The TSQD1NO is a workhorse timer favoured by contractors for retrofit installations and new builds where cost-effective load control matters. The quartz-controlled mechanism holds accuracy to within 1 second per day, and the transparent cover allows visual confirmation of the schedule dial without opening the enclosure. Manual operation lets users override the timer on-site if needed.

        Features

        • 24-hour analogue program — a single 24-hour cycle repeats daily; no weekly or annual schedules, no complexity on the dial.
        • 16A single-pole contact — controls loads up to 16 amps at 250V AC; suitable for general lighting, motors up to 3 kW, heating elements, and pump duty cycles.
        • 15-minute switching intervals — smallest increment is 15 minutes, giving 96 possible ON/OFF combinations across a 24-hour day.
        • 72-hour battery backup — internally powered by quartz-controlled backup battery; timer continues running for 3 days if mains power fails, so the schedule is not lost.
        • DIN rail mounting — 17.5mm width fits single-module spacing on standard DIN rails; mounts alongside MCBs, RCBOs, and RCDs with no special adapters.
        • Transparent cover — sealable plastic cover allows visual inspection of the dial schedule without opening the unit; shows ON/OFF segments at a glance.
        • Manual override — pressing the manual button overrides the program for emergency or temporary control; release restores the timed schedule.
        • IP20 protection — suitable for indoor switchboard use; not rated for splash or damp external environments.
        • Normally open contact — single N/O switch; energises the load when the timer closes the contact; de-energises when the contact opens.
        • Compact design — 90mm tall, 17.5mm wide, 65.5mm deep; fits easily into enclosures with limited panel space.
        • Quartz-controlled — oscillator-driven accuracy eliminates drift; no mechanical wear on the time base.
        • May require a contactor — if controlling motors or heating elements, a separate contactor is recommended to avoid burning out the timer contact; verify application load with a licensed electrician before installation.

        Where to use

        • Pump and water system cycles — the TSQD1NO schedules pump operation on/off for tanks, water re-circulation loops, and pressure systems on a fixed 24-hour cycle.
        • Heating system scheduling — controls immersion heaters, boiler pumps, or warm-water circulating fans on a predictable daily timetable.
        • Lighting schedules for commercial premises — off-hours building lighting, security or sign illumination, and car park lighting follow a simple fixed schedule.
        • Equipment duty cycles — compressors, fans, and industrial machinery can be run ON for N minutes, OFF for M minutes, repeating across the day.
        • Retrofit lighting and load control — where existing panels have space for a single-module timer and no remote control or programming logic is required.
        • New build switchboards — integrated into MDB or sub-board designs for applications needing straightforward load scheduling without smart meters or comms infrastructure.

        The TSQD1NO is not suitable for high-frequency switching, rapid on/off cycles (faster than 15 minutes), or safety-critical applications. It is a simple on/off timer, not a dimmer or proportional controller. Do not use the TSQD1NO to control RCDs, safety switches, or Earth leakage devices.

        Verified Sparky Direct customer reviews: Eaton TSQD1NO (TSQD1NO)

        "Great service." — Craig

        "Good quality timer with battery backup. Simplicity just works." — Tready

        (TSQD1NO)

        The TSQD1NO can switch up to 16A at 250V, but motors draw high inrush current at startup. For motor control, use a separate contactor controlled by the TSQD1NO's contact. A licensed electrician should verify the load and circuit design before installation.

        The TSQD1NO runs on an internal battery backup for up to 72 hours (3 days). The timer continues counting and holding the schedule, so when power returns, it resumes the programmed cycle without re-setting.

        Yes. Pressing the manual button on the timer overrides the program — the contact energises or de-energises immediately, independent of the dial setting. Release the button to return to the scheduled timetable.

        The smallest segment on the dial is 15 minutes. You cannot set intervals smaller than 15 minutes — the timer is designed for simple daily schedules (heating on/off, pump cycles, lighting), not for high-frequency switching.

        No. The TSQD1NO is rated IP20 and is suitable for indoor switchboard mounting only. It is not rated for damp, splash, or outdoor environments. For outdoor control, a weatherproof contactor enclosure is required.

        The Eaton TSQD1NO is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.

        100-Day Fuss-Free Returns
        We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.

        All products come with a manufacturer’s or supplier’s warranty

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.

        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        Warranty starts from Invoice Date

        Domestic Use: 1 Year
        Commercial Use: 1 Year
        Warranty Method: Return to Sparky Direct

        These specifications and characteristics outline physical, mechanical, electrical details.

        Brand Eaton
        SKU TSQD1NO
        Barcode # 4015081638871
        Package Weight 0.095kg
        View Datasheet
        TYPE VALUE
        Type Timer
        Brand Eaton
        Rated Current (A) 16
        Height (mm) 90
        Width (mm) 17.5
        Depth (mm) 65.5
        Mounting DIN rail
        Program Time 24 Hours
        Voltage (V) 230vac
        Voltage (V) 230
        Programming Type Analog
        Channels 1
        Battery Backup 3 Days
        Operating temperature -25 Deg Minimum
        Min Switch Time 15mins
        IP Rating IP20
        Contact Configuration 1 x N/O
        Frequency 50Hz
        Number of Poles 1

        Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.

        Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.

        Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.

        Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.

        For website terms and conditions https://www.sparkydirect.com.au/terms-of-use

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