{"product_id":"8-channel-relay-module-optocoupler-5v-12v-24v-arduino","title":"8 Channel Relay Module Optocoupler 5V 12V 24V for Arduino","description":"\n\u003ch2\u003e8 Channel Relay Module with Optocoupler — Multi-Voltage Control for Arduino \u0026amp; More\u003c\/h2\u003e\n\u003cp\u003eTake full control of your electronics projects with the \u003cstrong\u003eAsia-Teco 8 Channel Relay Module (Model HY08)\u003c\/strong\u003e. Designed for makers, hobbyists, and engineers alike, this versatile relay board lets you switch up to 8 independent loads using a single microcontroller. Compatible with Arduino, Raspberry Pi, 51\/AVR\/ARM development boards, and more, it's the go-to solution for home automation, robotics, industrial control, and DIY electronics.\u003c\/p\u003e\n\n\u003cp\u003eEach relay channel features both normally open (NO) and normally closed (NC) contacts, giving you maximum wiring flexibility. The built-in optocoupler isolation keeps your control circuitry safely separated from your load circuitry, protecting your microcontroller and ensuring reliable, noise-free switching.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e8 Independent Relay Channels\u003c\/strong\u003e — control 8 separate devices or circuits simultaneously\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Voltage Support\u003c\/strong\u003e — compatible with 5V, 12V, and 24V control signals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Current Relay Contacts\u003c\/strong\u003e — rated AC 250V \/ 10A and DC 30V \/ 10A per channel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptocoupler Isolation\u003c\/strong\u003e — electrically isolates control and load areas for safe, reliable operation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eActive-Low Trigger (IN1–IN8)\u003c\/strong\u003e — easy integration with standard microcontroller GPIO pins\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNO \u0026amp; NC Contacts\u003c\/strong\u003e — 8 normally open and 8 normally closed contacts for flexible wiring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBlue KF301 Screw Terminals\u003c\/strong\u003e — secure, tool-free wiring for all relay outputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDouble-Sided FR-4 PCB\u003c\/strong\u003e — professional-grade circuit board for durability and reliability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Status Indicators\u003c\/strong\u003e — individual indicator lights show the active\/inactive state of each relay\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 Mounting Holes\u003c\/strong\u003e — easy panel or enclosure installation (hole diameter 3.1mm, pitch 131mm × 49.5mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Tested\u003c\/strong\u003e — every unit passes full functional and stability testing before shipping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHY08\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eControl Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5V \/ 12V \/ 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRelay Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC 250V 10A \/ DC 30V 10A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eTrigger Logic\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eActive Low (IN1–IN8)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eContacts\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNO (Normally Open) \u0026amp; NC (Normally Closed)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePCB Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDouble-Sided FR-4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e138mm × 56mm × 18.5mm (L × W × H)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e120g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePin Interface Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eControl Side:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVCC\u003c\/strong\u003e — Connect to positive of 5V power supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGND\u003c\/strong\u003e — Connect to negative of 5V power supply\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIN1–IN8\u003c\/strong\u003e — Trigger signal inputs (active low)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRelay Output Side (per channel):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNO1–NO8\u003c\/strong\u003e — Normally Open: open before trigger, shorted to COM after trigger\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCOM1–COM8\u003c\/strong\u003e — Common terminal\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNC1–NC8\u003c\/strong\u003e — Normally Closed: shorted to COM before trigger, open after trigger\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Platforms\u003c\/h3\u003e\n\u003cp\u003eWorks seamlessly with Arduino Uno\/Mega\/Nano, Raspberry Pi, ESP8266, ESP32, 51 series MCUs, AVR, and ARM microcontrollers. The standard interface header makes it easy to extend with virtually any development board.\u003c\/p\u003e\n\n\u003ch3\u003eSafety \u0026amp; Standards\u003c\/h3\u003e\n\u003cp\u003eThis module complies with international safety standards. The load control area and the logic\/control area are fully isolated via optocouplers, ensuring your microcontroller is protected even when switching high-power AC or DC loads. For more information on electrical safety standards for electronic components, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Relay\" target=\"_blank\" rel=\"noopener\"\u003eRelay\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltages does this 8 channel relay module support?\u003c\/h4\u003e\n\u003cp\u003eA: The Asia-Teco HY08 8 channel relay module supports 5V, 12V, and 24V control signals, making it highly versatile for different microcontroller and power supply setups.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this relay module compatible with Arduino?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This 8 channel relay module is fully compatible with Arduino (Uno, Mega, Nano), as well as Raspberry Pi, ESP8266, ESP32, AVR, ARM, and 51-series microcontroller boards. The standard GPIO header interface makes wiring straightforward.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum load this relay module can switch?\u003c\/h4\u003e\n\u003cp\u003eA: Each relay channel can handle up to AC 250V \/ 10A or DC 30V \/ 10A, making it suitable for controlling household appliances, motors, lighting, solenoids, and other moderate-power devices.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the optocoupler isolation protect my microcontroller?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in optocoupler electrically isolates the low-voltage control circuitry (your Arduino or MCU) from the high-voltage load side. This prevents voltage spikes and electrical noise from the load from damaging your microcontroller, ensuring stable and safe operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this relay module support both normally open and normally closed wiring?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Each of the 8 channels provides a Normally Open (NO), a Common (COM), and a Normally Closed (NC) terminal, giving you the flexibility to wire your circuit in either configuration depending on your application needs.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltages does this 8 channel relay module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Asia-Teco HY08 8 channel relay module supports 5V, 12V, and 24V control signals, making it highly versatile for different microcontroller and power supply setups.\"}}, {\"@type\": \"Question\", \"name\": \"Is this relay module compatible with Arduino?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This 8 channel relay module is fully compatible with Arduino (Uno, Mega, Nano), as well as Raspberry Pi, ESP8266, ESP32, AVR, ARM, and 51-series microcontroller boards. The standard GPIO header interface makes wiring straightforward.\"}}, {\"@type\": \"Question\", \"name\": \"What is the maximum load this relay module can switch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each relay channel can handle up to AC 250V \/ 10A or DC 30V \/ 10A, making it suitable for controlling household appliances, motors, lighting, solenoids, and other moderate-power devices.\"}}, {\"@type\": \"Question\", \"name\": \"How does the optocoupler isolation protect my microcontroller?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in optocoupler electrically isolates the low-voltage control circuitry (your Arduino or MCU) from the high-voltage load side. 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Each of the 8 channels provides a Normally Open (NO), a Common (COM), and a Normally Closed (NC) terminal, giving you the flexibility to wire your circuit in either configuration depending on your application needs.\"}}]}\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:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Electronics \u0026 Tech\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/electronics-tech\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"8 Channel Relay Module Optocoupler 5V 12V 24V for Arduino\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/8-channel-relay-module-optocoupler-5v-12v-24v-arduino\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"5v","offer_id":48751897411776,"sku":"14:10#5v","price":14.99,"currency_code":"USD","in_stock":true},{"title":"24v","offer_id":48751897444544,"sku":"14:173#24v","price":14.99,"currency_code":"USD","in_stock":true},{"title":"12v","offer_id":48751897477312,"sku":"14:29#12v","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/H92286c72f99e42339091737555ba858e3.webp?v=1786242918","url":"https:\/\/vueselect.com\/products\/8-channel-relay-module-optocoupler-5v-12v-24v-arduino","provider":"Vue","version":"1.0","type":"link"}