{"product_id":"1-channel-relay-module-3-3v-5v-12v-24v-high-low-level-trigger","title":"1-Channel Relay Module 3.3V 5V 12V 24V High\/Low Level Trigger","description":"\n\u003ch2\u003e1-Channel Relay Module – Versatile Multi-Voltage Trigger Board\u003c\/h2\u003e\n\u003cp\u003eTake full control of your electronics projects with this compact and reliable \u003cstrong\u003e1-Channel Relay Module\u003c\/strong\u003e. Compatible with 3.3V, 5V, 12V, and 24V systems, this board is ideal for Arduino, Raspberry Pi, microcontrollers, and a wide range of DIY automation applications. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Supports 3.3V, 5V, 12V, and 24V input — works seamlessly with most popular microcontrollers and development boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh \u0026amp; Low Level Trigger Selection:\u003c\/strong\u003e Each channel can be independently set for high or low level triggering via a simple jumper — maximum flexibility for any circuit design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble Optocoupler Isolation:\u003c\/strong\u003e Provides strong drive capability, stable performance, and protects your control circuits. Trigger current: just 5mA.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Load Capacity:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eNormally Open (NO) interface: AC 250V \/ 10A or DC 30V \/ 10A\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFault-Tolerant Design:\u003c\/strong\u003e Even if the control line is disconnected, the relay remains in its current state — no unintended switching.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClear Status Indicators:\u003c\/strong\u003e Green LED for power-on status; Red LED for relay activation status — instant visual feedback at a glance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUser-Friendly Terminal Connections:\u003c\/strong\u003e All interfaces connect directly via screw terminals — no soldering required for fast, secure wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eModule Interface Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDC+\u003c\/strong\u003e – Connect to positive pole of power supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDC–\u003c\/strong\u003e – Connect to negative pole of power supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIN\u003c\/strong\u003e – Signal input; controls relay via high or low level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelay Output Terminals\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNO (Normally Open):\u003c\/strong\u003e Circuit is open at rest; closes when relay is energized.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCOM (Common):\u003c\/strong\u003e Common terminal shared by NO and NC contacts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNC (Normally Closed):\u003c\/strong\u003e Circuit is closed at rest; opens when relay is energized.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTrigger Level Selection\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eS1 Jumper:\u003c\/strong\u003e Selects high or low level trigger for relay 1.\u003c\/li\u003e\n  \u003cli\u003eShort COM to LOW → Low-level trigger mode\u003c\/li\u003e\n  \u003cli\u003eShort COM to HIGH → High-level trigger mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.3V \/ 5V \/ 12V \/ 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Load (NO)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 250V\/10A or DC 30V\/10A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5mA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble Optocoupler\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower (Green), Relay Status (Red)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicon Grease Lubricant for O-Rings\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-large-capacity-battery-storage-organizer-box-batteries-not-included-vintage-beer-crate-appearance-holds-30-aaa-batteries\"\u003e1PC Large Capacity Battery Storage Organizer Box\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-mobile-data-cable-storage-box-portable-winding-earphone-charger-storage-box-with-lid-drawer-organizer-box\"\u003e1PC Mobile Data Cable Storage Box with Lid\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltages does this relay module support?\u003c\/h4\u003e\n\u003cp\u003eA: This 1-channel relay module supports 3.3V, 5V, 12V, and 24V input voltages, making it compatible with a wide range of microcontrollers including Arduino, Raspberry Pi, and other development boards.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I choose between high-level and low-level triggering?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The S1 jumper on the board lets you select either high-level or low-level triggering for the relay channel. Simply short COM to HIGH for high-level trigger mode, or to LOW for low-level trigger mode.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the maximum load this relay can handle?\u003c\/h4\u003e\n\u003cp\u003eA: The normally open (NO) interface supports a maximum load of AC 250V\/10A or DC 30V\/10A — suitable for switching a wide variety of home automation and electronics loads.\u003c\/p\u003e\n\u003ch4\u003eQ: Is optocoupler isolation included for circuit protection?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This module uses double optocoupler isolation to protect your microcontroller or control circuit from the load side, ensuring stable and safe operation.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltages does this relay module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 1-channel relay module supports 3.3V, 5V, 12V, and 24V input voltages, making it compatible with a wide range of microcontrollers including Arduino, Raspberry Pi, and other development boards.\"}}, {\"@type\": \"Question\", \"name\": \"Can I choose between high-level and low-level triggering?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The S1 jumper on the board lets you select either high-level or low-level triggering for the relay channel. 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This module uses double optocoupler isolation to protect your microcontroller or control circuit from the load side, ensuring stable and safe operation.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"1-Channel Relay Module 3.3V 5V 12V 24V High\/Low Level Trigger\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/1-channel-relay-module-3-3v-5v-12v-24v-high-low-level-trigger\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"24V","offer_id":67609185943651,"sku":"1005013147050657-24V","price":4.46,"currency_code":"USD","in_stock":true},{"title":"3.3V","offer_id":67609185976419,"sku":"1005013147050657-3.3V","price":5.05,"currency_code":"USD","in_stock":true},{"title":"5V","offer_id":67609186009187,"sku":"1005013147050657-5V","price":4.28,"currency_code":"USD","in_stock":true},{"title":"12V","offer_id":67609186041955,"sku":"1005013147050657-12V","price":4.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S9acb603639bc4d13ac571c3570175f2du.webp?v=1790788240","url":"https:\/\/nixiehaven.com\/products\/1-channel-relay-module-3-3v-5v-12v-24v-high-low-level-trigger","provider":"Nixie","version":"1.0","type":"link"}