{"product_id":"12v-relay-module-2-4-8-channel","title":"12V Relay Module - 2\/4\/8 Channel with High\/Low Trigger \u0026 Optocoupler","description":"\u003ch4\u003eTake Control of Your High-Power Projects\u003c\/h4\u003e\n\u003cp\u003eUnlock the potential of your microcontroller with our \u003cb\u003e12V Opto-Isolated Relay Module\u003c\/b\u003e. Whether you're a hobbyist working with an \u003cb\u003eArduino, Raspberry Pi, ESP32\u003c\/b\u003e, or a professional building a custom automation system, this module provides a safe and reliable way to control high-voltage and high-current devices like lights, motors, fans, and solenoids.\u003c\/p\u003e\n\u003cp\u003eAvailable in 2, 4, or 8-channel configurations, you can choose the perfect fit for your project's needs.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFlexible Channel Options:\u003c\/b\u003e Choose from \u003cb\u003e2, 4, or 8 channels\u003c\/b\u003e to match the scale of your project, from simple a simple switch to complex multi-device automation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh\/Low Level Trigger (Selectable):\u003c\/b\u003e A built-in jumper allows you to set each channel to trigger on either a \u003cb\u003eHIGH\u003c\/b\u003e signal (e.g., 3.3V\/5V) or a \u003cb\u003eLOW\u003c\/b\u003e signal (0V\/GND). This provides maximum compatibility with virtually any microcontroller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrue Optocoupler Isolation:\u003c\/b\u003e Each relay channel is equipped with a genuine optocoupler, creating an electrical barrier between your delicate microcontroller and the high-power output circuit. This \u003cb\u003eprotects your logic board\u003c\/b\u003e from voltage spikes and ground loop interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Current Relays:\u003c\/b\u003e Equipped with high-quality Songle SRD-12VDC-SL-C relays, each channel can handle heavy loads up to \u003cb\u003e10A at 250VAC\u003c\/b\u003e or \u003cb\u003e10A at 30VDC\u003c\/b\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStatus Indicator LEDs:\u003c\/b\u003e Each channel has two onboard LEDs: a power indicator (Green) and a relay status indicator (Red) that lights up when the relay is active, making debugging your circuit a breeze.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStable \u0026amp; Reliable:\u003c\/b\u003e Features screw terminal blocks for secure input and output connections, and mounting holes for easy installation in your enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eHow to Use the High\/Low Trigger\u003c\/h4\u003e\n\u003cp\u003eThis module offers maximum flexibility with its trigger selection:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cb\u003eLocate the Jumper:\u003c\/b\u003e Find the 3-pin jumper block for the module (or for each channel on multi-channel boards).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSet to Low Level Trigger:\u003c\/b\u003e Place the jumper cap to connect the \u003cb\u003e\u003ccode\u003eL\u003c\/code\u003e\u003c\/b\u003e pin and the \u003cb\u003e\u003ccode\u003eCOM\u003c\/code\u003e\u003c\/b\u003e pin. The relay will activate when your I\/O pin sends a \u003cb\u003eLOW\u003c\/b\u003e (0V) signal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSet to High Level Trigger:\u003c\/b\u003e Place the jumper cap to connect the \u003cb\u003e\u003ccode\u003eH\u003c\/code\u003e\u003c\/b\u003e pin and the \u003cb\u003e\u003ccode\u003eCOM\u003c\/code\u003e\u003c\/b\u003e pin. The relay will activate when your I\/O pin sends a \u003cb\u003eHIGH\u003c\/b\u003e (e.g., 5V) signal.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCoil Voltage:\u003c\/b\u003e 12V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAvailable Channels:\u003c\/b\u003e 2, 4, 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelay Model:\u003c\/b\u003e Songle SRD-12VDC-SL-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMax Load Rating:\u003c\/b\u003e 10A 250VAC \/ 10A 125VAC \/ 10A 30VDC \/ 10A 28VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrigger Voltage:\u003c\/b\u003e 3.3V - 12V (Compatible with most microcontrollers)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrigger Current:\u003c\/b\u003e ~5mA per channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIsolation:\u003c\/b\u003e Optocoupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Terminals:\u003c\/b\u003e Normally Open (NO), Common (COM), Normally Closed (NC)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"12V 2 Channel","offer_id":46267436531863,"sku":"21PS002244","price":62.0,"currency_code":"TWD","in_stock":true},{"title":"12V 4 Channel","offer_id":46267436564631,"sku":"21PS002245","price":103.0,"currency_code":"TWD","in_stock":true},{"title":"12V 8 Channel","offer_id":46267436597399,"sku":"21PS002286","price":161.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/12v-relay-module-2-4-8-channel-group.jpg?v=1762944641","url":"https:\/\/scccltd.com\/en-tw\/products\/12v-relay-module-2-4-8-channel","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}