{"product_id":"5v-1-channel-solid-state-relay-module-ssr-high-low-trigger-250v-2a-arduino","title":"5V 1-Channel Solid State Relay Module (SSR) — High\/Low Level Trigger, 250V AC \/ 2A, for Arduino","description":"\u003ch2\u003e5V 1-Channel Solid State Relay Module (SSR) — High \/ Low Level Trigger, 250V AC \/ 2A\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003esolid state relay (SSR) module\u003c\/strong\u003e uses an optocoupler-isolated triac to switch AC loads up to 250V \/ 2A silently and without mechanical wear. Controlled by a 5V logic signal from Arduino, Raspberry Pi, or any microcontroller, it supports both high-level and low-level trigger modes. Unlike mechanical relays, SSRs produce no click noise, no contact arcing, and have virtually unlimited switching cycles.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC (logic input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrigger Mode\u003c\/td\u003e\n\u003ctd\u003eHigh level or Low level (selectable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Current\u003c\/td\u003e\n\u003ctd\u003e2A max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eOptocoupler (input\/output isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Type\u003c\/td\u003e\n\u003ctd\u003eZero-crossing (silent, no arcing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eSSR vs Mechanical Relay — Key Differences\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eSolid State Relay (SSR)\u003c\/th\u003e\n\u003cth\u003eMechanical Relay\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003eSilent\u003c\/td\u003e\n\u003ctd\u003eAudible click\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Speed\u003c\/td\u003e\n\u003ctd\u003eFast (ms)\u003c\/td\u003e\n\u003ctd\u003eSlower (~10ms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Wear\u003c\/td\u003e\n\u003ctd\u003eNone (no moving parts)\u003c\/td\u003e\n\u003ctd\u003eYes (limited cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArcing\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eYes (at high current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eFrequent switching, noise-sensitive\u003c\/td\u003e\n\u003ctd\u003eHigh current, low cost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This SSR Module?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSilent operation\u003c\/strong\u003e — no click noise, ideal for quiet environments\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOptocoupler isolation\u003c\/strong\u003e — protects Arduino from AC mains voltage\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eHigh\/low trigger selectable\u003c\/strong\u003e — compatible with active-high and active-low GPIO\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e-40°C to +85°C\u003c\/strong\u003e — reliable in industrial and outdoor environments\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNo moving parts\u003c\/strong\u003e — virtually unlimited switching cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino AC mains load switching (lamp, fan, heater)\u003c\/li\u003e\n\u003cli\u003eHome automation silent relay control\u003c\/li\u003e\n\u003cli\u003e3D printer heated bed AC power control\u003c\/li\u003e\n\u003cli\u003eIndustrial AC equipment on\/off control\u003c\/li\u003e\n\u003cli\u003eAquarium pump and lighting timer control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × 5V 1-Channel Solid State Relay Module (SSR)\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cem\u003e⚠️ Warning: This module switches mains AC voltage. Ensure proper insulation and follow electrical safety guidelines when wiring to AC loads.\u003c\/em\u003e\u003c\/p\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991435923691,"sku":"\u003cnone\u003e","price":5.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/5v-1-channel-solid-state-relay-module-ssr-arduino-250v-2a.webp?v=1761880112","url":"https:\/\/keszoox.com\/products\/5v-1-channel-solid-state-relay-module-ssr-high-low-trigger-250v-2a-arduino","provider":"Keszoox","version":"1.0","type":"link"}