{"product_id":"24v-relay-module-2-4-channel","title":"24V Relay Module - 2 \u0026 4 Channel with High\/Low Level Trigger","description":"\u003ch4\u003eSafely Control High-Power Loads with Your 24V System\u003c\/h4\u003e\n\u003cp\u003eThis 24V relay module, available in \u003cb\u003e2 or 4-channel\u003c\/b\u003e options, is the perfect bridge between your low-voltage control circuits (like a PLC, MCU, or industrial controller) and high-power AC\/DC loads. It allows you to use a safe, low-voltage 24V signal to control lights, motors, solenoids, and other demanding devices.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e24V DC Operation:\u003c\/b\u003e Designed specifically for 24V systems, making it ideal for PLC and industrial automation projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSelectable High\/Low Level Trigger:\u003c\/b\u003e Easily configure how your relay activates. Use the onboard jumpers (S1, S2, etc.) to choose whether a HIGH (24V) or LOW (0V) signal turns the relay ON.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOptocoupler Isolation:\u003c\/b\u003e Features built-in optocouplers (opto-isolators) that completely separate your control circuit (PLC\/MCU) from the high-power load. This protects your delicate electronics from voltage spikes and electrical noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Switching Capacity:\u003c\/b\u003e Each relay (SRD-24VDC-SL-C) is rated to handle heavy loads:\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003e10A @ 250VAC\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e10A @ 30VDC\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClear Status Indicators:\u003c\/b\u003e Equipped with a power-on LED and individual status LEDs for each relay. Instantly see which channels are active, making troubleshooting a breeze.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSecure \u0026amp; Easy Wiring:\u003c\/b\u003e All inputs and outputs use convenient screw terminals for reliable, secure connections. No soldering required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eHow to Use\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePower:\u003c\/b\u003e Connect your 24V power supply to \u003ccode\u003eDC+\u003c\/code\u003e and \u003ccode\u003eDC-\u003c\/code\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrigger Setup:\u003c\/b\u003e\n\u003cul\u003e\n\u003cli\u003eMove the \u003ccode\u003eS1\u003c\/code\u003e\/\u003ccode\u003eS2\u003c\/code\u003e\/etc. jumper to the \u003cb\u003eHigh\u003c\/b\u003e side for a high-level trigger.\u003c\/li\u003e\n\u003cli\u003eMove the jumper to the \u003cb\u003eLow\u003c\/b\u003e side for a low-level trigger.\u003c\/li\u003e\n\u003cli\u003eConnect the \u003ccode\u003eCom\u003c\/code\u003e (common trigger) pin to your logic's common ground (0V) or positive (24V) as required by your setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Signal:\u003c\/b\u003e Send your 24V control signal from your PLC or MCU to the \u003ccode\u003eIN1\u003c\/code\u003e, \u003ccode\u003eIN2\u003c\/code\u003e, \u003ccode\u003eIN3\u003c\/code\u003e, or \u003ccode\u003eIN4\u003c\/code\u003e pins.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLoad Wiring:\u003c\/b\u003e Wire your device (e.g., a light or motor) using the three output terminals for each channel:\n\u003cul\u003e\n\u003cli\u003e\n\u003ccode\u003eNC\u003c\/code\u003e (Normally Closed): Contact is closed when the relay is OFF.\u003c\/li\u003e\n\u003cli\u003e\n\u003ccode\u003eCOM\u003c\/code\u003e (Common): The central pin your load is wired through.\u003c\/li\u003e\n\u003cli\u003e\n\u003ccode\u003eNO\u003c\/code\u003e (Normally Open): Contact is open when the relay is OFF (closes when activated).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVariants:\u003c\/b\u003e 2-Channel, 4-Channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoil Voltage:\u003c\/b\u003e 24V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTrigger Type:\u003c\/b\u003e High \/ Low Level (Jumper Selectable)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelay Model:\u003c\/b\u003e SRD-24VDC-SL-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMax Load:\u003c\/b\u003e 10A 250VAC \/ 10A 30VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIsolation:\u003c\/b\u003e Optocoupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Terminals:\u003c\/b\u003e DC+, DC-, IN1, IN2 (IN3, IN4 for 4-ch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Terminals (per channel):\u003c\/b\u003e NC, COM, NO\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"24V 2 Channel","offer_id":46267463630999,"sku":"21PS002404","price":62.0,"currency_code":"TWD","in_stock":true},{"title":"24V 4 Channel","offer_id":46267463663767,"sku":"21PS002405","price":103.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/24v-2-channel-4-channel-relay-module-comparison.jpg?v=1762948313","url":"https:\/\/scccltd.com\/en-tw\/products\/24v-relay-module-2-4-channel","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}