{"product_id":"dc-5v-12v-ne555-time-delay-relay-module-adjustable-timer-switch","title":"DC 5V\/12V NE555 Time Delay Relay Module Adjustable Timer Switch","description":"\u003ch2\u003eDC 5V\/12V NE555 Time Delay Relay Module - Adjustable Timer Switch\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003eNE555-based time delay relay module\u003c\/strong\u003e provides an adjustable time delay from \u003cstrong\u003e0 to 270 seconds\u003c\/strong\u003e (depending on RC component values) before switching a \u003cstrong\u003e10A relay output\u003c\/strong\u003e. Powered from 5V or 12V DC, it is ideal for auto power-off circuits, delayed start applications, and timer-controlled switching without any microcontroller programming.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTimer IC\u003c\/td\u003e\n\u003ctd\u003eNE555\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e5V or 12V DC (select variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelay Range\u003c\/td\u003e\n\u003ctd\u003e0 - 270 seconds (adjustable via potentiometer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Output\u003c\/td\u003e\n\u003ctd\u003e10A \/ 250V AC (or 10A \/ 30V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contacts\u003c\/td\u003e\n\u003ctd\u003eNO, NC, COM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Mode\u003c\/td\u003e\n\u003ctd\u003ePower-on delay (relay activates after set time)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicator LEDs\u003c\/td\u003e\n\u003ctd\u003ePower LED + Relay status LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Size\u003c\/td\u003e\n\u003ctd\u003e~60 x 40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eOperating Modes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-On Delay\u003c\/strong\u003e - Apply power; relay activates after the set delay time. Use NO contact for delayed-on switching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-Off Delay\u003c\/strong\u003e - Relay activates immediately on power; deactivates after delay. Use NC contact for delayed-off switching.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose This Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Programming Required\u003c\/strong\u003e - Adjust delay with a screwdriver; no MCU or code needed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10A Relay Output\u003c\/strong\u003e - Switches mains loads (lamps, motors, appliances) up to 2500W @ 250V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Delay\u003c\/strong\u003e - Potentiometer sets delay from near-zero to ~270 seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNO\/NC\/COM Contacts\u003c\/strong\u003e - Flexible wiring for normally-open or normally-closed applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Indicators\u003c\/strong\u003e - Power and relay status LEDs for easy monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAuto power-off for tools and appliances after inactivity\u003c\/li\u003e\n\u003cli\u003eDelayed fan start after engine\/motor shutdown (cooling delay)\u003c\/li\u003e\n\u003cli\u003eDelayed power-on for audio amplifiers (speaker protection)\u003c\/li\u003e\n\u003cli\u003eAutomatic irrigation timer\u003c\/li\u003e\n\u003cli\u003eCar accessory delayed power-off (dome light, radio)\u003c\/li\u003e\n\u003cli\u003eIndustrial machine start delay for sequential power-up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWiring Guide\u003c\/h3\u003e\u003cp\u003eConnect VCC\/GND to 5V or 12V supply. Wire load between COM and NO (for delayed-on) or COM and NC (for delayed-off). Adjust potentiometer clockwise to increase delay time. LED lights when relay is energized.\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I extend the delay beyond 270 seconds?\u003c\/strong\u003e Yes - replace the timing capacitor with a larger value. Delay = 1.1 x R x C. Doubling the capacitor doubles the delay time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can this module switch 220V AC loads?\u003c\/strong\u003e Yes - the relay is rated 10A\/250V AC. Ensure proper insulation and safety precautions when wiring mains voltage.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1x NE555 Time Delay Relay Module (5V or 12V version)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"5V","offer_id":46991503524075,"sku":"14:1202#5V","price":5.12,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":46991503556843,"sku":"14:350852#12V","price":5.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/dc-time-delay-relay-module.webp?v=1761531778","url":"https:\/\/keszoox.com\/products\/dc-5v-12v-ne555-time-delay-relay-module-adjustable-timer-switch","provider":"Keszoox","version":"1.0","type":"link"}