{"product_id":"hanyoung-nux-t21-1-4a20-mini-timer","title":"Hanyoung Nux T21-1-4A20 Mini Timer","description":"\u003cmeta name=\"description\" content=\"Buy Hanyoung Nux T21-1-4A20 Mini Timer online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eHanyoung Nux T21-1-4A20 Mini Timer\u003c\/h1\u003e\n\n\u003cp\u003eThe Hanyoung Nux T21-1-4A20 is a compact digital mini timer designed for precision timing applications in industrial automation and control systems. This device is widely used by automation engineers, plant operators, and control system integrators who require reliable time-delay functionality in their electrical panels and machinery. It solves the critical problem of implementing accurate time delays, pulse generation, and cycle timing in automated processes without requiring complex programming or large panel space.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe T21-1-4A20 mini timer operates on the principle of electronic time-delay relay functionality, utilizing a microprocessor-based control circuit to generate precise timing intervals. This model features a compact DIN-rail mountable design that fits seamlessly into standard electrical enclosures, making it ideal for retrofit applications and space-constrained installations. The timer employs solid-state relay output technology, eliminating the mechanical wear associated with traditional electromagnetic relays while providing faster switching response times and improved reliability in harsh industrial environments.\u003c\/p\u003e\n\n\u003cp\u003eWhat distinguishes the T21-1-4A20 is its versatile timing range capability and multiple operating modes that cater to diverse industrial applications. The device utilizes a 4-digit LED display for real-time parameter visibility and configuration, allowing technicians to monitor timing values and operational status at a glance. Its robust construction with industrial-grade components ensures stable performance across temperature fluctuations and electrical noise typical in manufacturing facilities, power distribution systems, and process control environments.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDigital Mini Timer with Relay Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHanyoung Nux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eT21-1-4A20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003eAC 100-240V or DC 24V (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTiming Range\u003c\/td\u003e\n\u003ctd\u003e0.1 seconds to 99 hours 59 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Contact\u003c\/td\u003e\n\u003ctd\u003e1 Form A (SPST) 4A at 250VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003e4-digit LED display with 7-segment format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN-rail mount (35mm standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10 to 50 degrees Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrecision timing accuracy with adjustable resolution from 0.1 seconds to 1 hour intervals, enabling fine-tuned control in critical timing sequences\u003c\/li\u003e\n\u003cli\u003eMultiple operating modes including on-delay, off-delay, and pulse generation for versatile automation requirements across different industrial processes\u003c\/li\u003e\n\u003cli\u003eCompact DIN-rail design measuring approximately 45mm width, allowing installation in tight panel spaces without requiring additional enclosure modifications\u003c\/li\u003e\n\u003cli\u003e4-digit LED display with intuitive push-button interface for quick parameter adjustment and real-time operational status monitoring\u003c\/li\u003e\n\u003cli\u003eSolid-state relay output rated at 4A 250VAC providing fast switching times under 10ms and superior reliability compared to mechanical relays\u003c\/li\u003e\n\u003cli\u003eWide supply voltage compatibility supporting both AC 100-240V and DC 24V operation, making it suitable for diverse electrical infrastructure standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePump motor control systems where precise on-delay timing prevents water hammer effects and ensures smooth equipment startup in irrigation and industrial water treatment facilities\u003c\/li\u003e\n\u003cli\u003eConveyor belt automation sequences requiring coordinated start-stop timing between multiple driven rollers and sorting mechanisms in manufacturing and logistics operations\u003c\/li\u003e\n\u003cli\u003eHVAC system cycling control for heating and cooling equipment, managing compressor run-time intervals and preventing rapid on-off cycling that reduces equipment lifespan\u003c\/li\u003e\n\u003cli\u003eIndustrial furnace and oven temperature stabilization through controlled heating element pulse timing, maintaining consistent thermal profiles in food processing and metal treatment applications\u003c\/li\u003e\n\u003cli\u003eEmergency lighting and backup power system sequencing, ensuring proper time-delayed activation of standby generators and distribution of electrical loads during power transitions\u003c\/li\u003e\n\u003cli\u003eMachinery safety interlocks implementing timed delays between operational sequences, protecting operators from unexpected equipment movement in presses, shears, and automated assembly stations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eInstallation of the T21-1-4A20 begins with mounting the unit onto a standard 35mm DIN rail within your electrical enclosure, ensuring proper orientation with the display facing outward for visibility. Connect the supply voltage to the designated terminals, observing polarity if using DC supply, and wire the load circuit through the relay output contacts rated at 4A maximum. Before energizing the system, verify all connections using a multimeter to prevent short circuits and ensure proper grounding of the enclosure.\u003c\/p\u003e\n\n\u003cp\u003eConfiguration requires entering the desired timing parameters using the push-button interface on the device face. Press the mode button to cycle through available timing functions such as on-delay or off-delay, then use the increment and decrement buttons to set your desired time value displayed on the 4-digit LED screen. Once configured, the timer automatically activates when its trigger input receives the appropriate signal, and the relay output switches to energize your connected load. For complex multi-step timing sequences, document your configuration settings for future reference and maintenance purposes.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between on-delay and off-delay timing modes?\u003c\/summary\u003e\n\u003cp\u003eOn-delay mode activates the relay output only after the input signal has been present for the programmed duration, useful for preventing false triggers from momentary electrical noise. Off-delay mode keeps the relay energized for the programmed time after the input signal is removed, ideal for maintaining equipment operation during brief power interruptions or ensuring smooth shutdown sequences in machinery.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan the T21-1-4A20 handle inductive loads like solenoids and motor coils?\u003c\/summary\u003e\n\u003cp\u003eWhile the relay contacts are rated for 4A at 250VAC, inductive loads require additional protection through snubber circuits or freewheeling diodes to suppress voltage spikes generated during relay switching. We recommend installing a varistor or diode across inductive loads to prevent contact erosion and extend relay lifespan. For heavy inductive loads exceeding 2A, consider using an external contactor controlled by this timer's relay output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat happens if the input signal is interrupted during the timing cycle?\u003c\/summary\u003e\n\u003cp\u003eIn on-delay mode, if the input signal is removed before the timer completes its cycle, the timing resets and the relay output does not activate. In off-delay mode, the timer continues running independently of the input signal once initiated, ensuring the full delay period elapses before the relay de-energizes. This behavior is essential for safety-critical applications requiring guaranteed timing completion.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the timer suitable for outdoor or high-vibration environments?\u003c\/summary\u003e\n\u003cp\u003eThe T21-1-4A20 is designed for standard industrial indoor environments with operating temperatures between -10 to 50 degrees Celsius. For outdoor installation, the unit must be housed in a sealed, weatherproof enclosure with appropriate ventilation to prevent condensation. In high-vibration applications, secure the DIN rail mounting with vibration-dampening brackets to prevent contact chatter and ensure reliable operation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Tech Depot\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Hanyoung Nux T21-1-4A20 Mini Timer Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eHanyoung Nux T21-1-4A20 Mini Timer\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eHanyoung Nux T21-1-4A20 Mini Timer\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48742559580417,"sku":"TTD-6872","price":1068.48,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/e3094f9ee96e5b3be9314cacd4ac2d7a.jpg?v=1778030451","url":"https:\/\/techdepot.in\/products\/hanyoung-nux-t21-1-4a20-mini-timer","provider":"Tech Depot India","version":"1.0","type":"link"}