{"product_id":"single-phase-ac-solid-state-relay-10a-25a-40a-white-shell-ssr","title":"AC Solid State Relay 10A 25A 40A Single Phase | 24–480VAC","description":"\n\u003ch2\u003eSingle Phase AC Solid State Relay – White Shell | 10A \/ 25A \/ 40A\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electrical control systems with this CE-certified Single Phase AC Solid State Relay (SSR). Available in 10A, 25A, and 40A load current ratings, this relay is engineered for reliable, silent switching in demanding industrial and commercial environments. Its white shell design resists corrosion and performs consistently even in humid or high-contamination conditions — making it an ideal drop-in replacement for traditional electromechanical relays.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building a temperature controller, a digital program-controlled device, a data processing system, or integrating a computer terminal interface circuit, this SSR delivers precise AC-to-AC control with zero mechanical wear and an LED status indicator for at-a-glance monitoring.\u003c\/p\u003e\n\n\u003cp\u003eMade in China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAC-to-AC Control:\u003c\/strong\u003e Accepts an AC control signal (80–250V) to switch loads up to 24–480VAC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Current Ratings:\u003c\/strong\u003e Choose from 10A, 25A, or 40A to match your application\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZero-Cross Switching:\u003c\/strong\u003e Reduces electrical noise and extends the lifespan of connected equipment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Moving Parts:\u003c\/strong\u003e Silent operation and virtually unlimited switching cycles — no contact wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Status Indicator:\u003c\/strong\u003e Visual confirmation of relay activation at a glance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant White Shell:\u003c\/strong\u003e Built for wet, dusty, and high-corrosion environments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European safety and electromagnetic compatibility standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Temperature control, data systems, program-controlled devices, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSSR-10AA \/ SSR-25AA \/ SSR-40AA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10A \/ 25A \/ 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24–480V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80–250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC: 3–25mA | AC: 12mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWork Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Source\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShell Color\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite\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 China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTemperature control devices and thermostats\u003c\/li\u003e\n  \u003cli\u003eDigital program-controlled industrial equipment\u003c\/li\u003e\n  \u003cli\u003eData processing systems and automation panels\u003c\/li\u003e\n  \u003cli\u003eComputer terminal interface circuits\u003c\/li\u003e\n  \u003cli\u003eFrequent-switching environments where mechanical relay wear is a concern\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/360-bicycle-chain-cleaner-tool-gear-cleaning-kit\"\u003e360° Bicycle Chain Cleaner Tool | Bike Gear Cleaning Kit\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 is the difference between the SSR-10AA, SSR-25AA, and SSR-40AA solid state relay models?\u003c\/h4\u003e\n\u003cp\u003eA: The three models differ in their maximum load current rating. The SSR-10AA handles up to 10 amps, the SSR-25AA up to 25 amps, and the SSR-40AA up to 40 amps. All three share the same control voltage range (80–250V AC) and load voltage range (24–480V AC), so you simply select the model based on the current draw of your intended load.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this solid state relay be used in humid or corrosive environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The white shell is specifically designed for wet, dusty, and high-corrosion environments where standard electromechanical relays may degrade or fail prematurely. The solid-state design with no mechanical contacts also makes it ideal for applications requiring frequent switching cycles.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this relay require a heat sink for operation?\u003c\/h4\u003e\n\u003cp\u003eA: For higher current loads (25A and 40A ratings especially), mounting the relay on an appropriate heat sink or metal panel is strongly recommended to dissipate heat effectively and ensure long-term reliable operation. For lower-current or intermittent applications at the 10A rating, heat management requirements are less critical but should still be considered.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the LED indicator on the solid state relay do?\u003c\/h4\u003e\n\u003cp\u003eA: The built-in LED indicator lights up whenever the relay is activated (i.e., when a valid control signal is applied and the load circuit is switched on). This provides a quick visual confirmation that the relay is functioning and conducting — useful for troubleshooting and system monitoring.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the SSR-10AA, SSR-25AA, and SSR-40AA solid state relay models?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The three models differ in their maximum load current rating. The SSR-10AA handles up to 10 amps, the SSR-25AA up to 25 amps, and the SSR-40AA up to 40 amps. All three share the same control voltage range (80–250V AC) and load voltage range (24–480V AC), so you simply select the model based on the current draw of your intended load.\"}}, {\"@type\": \"Question\", \"name\": \"Can this solid state relay be used in humid or corrosive environments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The white shell is specifically designed for wet, dusty, and high-corrosion environments where standard electromechanical relays may degrade or fail prematurely. The solid-state design with no mechanical contacts also makes it ideal for applications requiring frequent switching cycles.\"}}, {\"@type\": \"Question\", \"name\": \"Does this relay require a heat sink for operation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For higher current loads (25A and 40A ratings especially), mounting the relay on an appropriate heat sink or metal panel is strongly recommended to dissipate heat effectively and ensure long-term reliable operation. For lower-current or intermittent applications at the 10A rating, heat management requirements are less critical but should still be considered.\"}}, {\"@type\": \"Question\", \"name\": \"What does the LED indicator on the solid state relay do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The built-in LED indicator lights up whenever the relay is activated (i.e., when a valid control signal is applied and the load circuit is switched on). This provides a quick visual confirmation that the relay is functioning and conducting — useful for troubleshooting and system monitoring.\"}}]}\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:\/\/n8ande-60.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"AC Solid State Relay 10A 25A 40A Single Phase | 24–480VAC\", \"item\": \"https:\/\/n8ande-60.myshopify.com\/products\/single-phase-ac-solid-state-relay-10a-25a-40a-white-shell-ssr\"}]}\u003c\/script\u003e","brand":"Axl","offers":[{"title":"10AA","offer_id":44167665385559,"sku":"5:144170022#10AA","price":20.04,"currency_code":"USD","in_stock":true},{"title":"heat sink","offer_id":44167665418327,"sku":"5:200004183#heat sink","price":12.51,"currency_code":"USD","in_stock":true},{"title":"40AA","offer_id":44167665451095,"sku":"5:200004182#40AA","price":21.24,"currency_code":"USD","in_stock":true},{"title":"25AA","offer_id":44167665483863,"sku":"5:200004763#25AA","price":20.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0676\/6008\/7383\/files\/Hf9126742473d479e91c56558ab1543671.webp?v=1786762971","url":"https:\/\/axlcustomersupport.com\/products\/single-phase-ac-solid-state-relay-10a-25a-40a-white-shell-ssr","provider":"Axl","version":"1.0","type":"link"}