{"product_id":"solid-state-relay-ssr40da-dc-to-ac-input-332vdc-output-24380vac-40a","title":"SSR-40DA DC to AC Solid State Relay - 3 Pack","description":"\u003ch2\u003eSSR-40DA Solid State Relay\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eModel: SSR-40DA\u003c\/li\u003e\n\u003cli\u003eType: Single-phase solid state relay\u003c\/li\u003e\n\u003cli\u003eControl Input Voltage: 3-32V DC\u003c\/li\u003e\n\u003cli\u003eLoad Output Voltage: 24-380V AC\u003c\/li\u003e\n\u003cli\u003eMaximum Load Current: 40A\u003c\/li\u003e\n\u003cli\u003eSwitching Method: Electronic, for fast response and long service life\u003c\/li\u003e\n\u003cli\u003eConstruction: Aluminum heat-dissipating base plate with screw terminals\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSSR-40DA\u003c\/li\u003e\n\u003cli\u003eReplaces solid state relays with matching electrical specifications (3-32V DC control, 24-380V AC load, up to 40A)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for various AC load switching applications including PID temperature controllers, industrial automation, HVAC systems, and motor controls.\u003c\/li\u003e\n\u003cli\u003eCompatible with microcontrollers and PLCs that provide a 3-32V DC output signal.\u003c\/li\u003e\n\u003cli\u003eA heat sink is required for loads exceeding 10A to prevent thermal damage and ensure rated performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRelay fails to activate the load when a control signal is present.\u003c\/li\u003e\n\u003cli\u003eRelay remains stuck in the \"ON\" position, keeping the load powered without a control signal.\u003c\/li\u003e\n\u003cli\u003eUnit overheats under normal operating conditions (with an appropriate heat sink).\u003c\/li\u003e\n\u003cli\u003eVisible damage, such as a cracked housing or corroded terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDisconnect all power sources before installation or servicing.\u003c\/li\u003e\n\u003cli\u003eMount the relay on a correctly sized heat sink, especially when switching loads greater than 10A.\u003c\/li\u003e\n\u003cli\u003eApply a thin layer of thermal paste between the relay's metal base and the heat sink for optimal heat transfer.\u003c\/li\u003e\n\u003cli\u003eConnect control (input) and load (output) wiring to the correct terminals as marked on the device.\u003c\/li\u003e\n\u003cli\u003eEnsure all wire connections are secure to prevent arcing and overheating.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45870607990973,"sku":"AZ00161344","price":22.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00222448_1_38505446-88aa-481e-9472-bc3a151f8e92.jpg?v=1772012809","url":"https:\/\/bluestarspartstrend.com\/products\/solid-state-relay-ssr40da-dc-to-ac-input-332vdc-output-24380vac-40a","provider":"BlueStars Parts","version":"1.0","type":"link"}