{"product_id":"ssr-40-dd-solid-state-relay-40a-dc-to-dc-3-32v-input-5-200v-output","title":"SSR-40 DD Solid State Relay 40A DC to DC 3-32V Input 5-200V Output","description":"\u003ch2\u003eSSR-40 DD Solid State Relay – 40A DC to DC\u003c\/h2\u003e\u003cp\u003eThe SSR-40 DD is a high-quality single-phase solid state relay designed for switching DC loads using a low-voltage DC control signal. With no moving parts, it offers silent, spark-free, and long-lasting switching — perfect for industrial automation, temperature controllers, and Arduino\/Raspberry Pi-based control systems.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eModel: SSR-40 DD\u003c\/li\u003e\n\u003cli\u003eType: DC to DC Solid State Relay\u003c\/li\u003e\n\u003cli\u003eLoad Voltage (Output): 5–200V DC\u003c\/li\u003e\n\u003cli\u003eLoad Current: 40A (max)\u003c\/li\u003e\n\u003cli\u003eControl Voltage (Input): 3–32V DC\u003c\/li\u003e\n\u003cli\u003eControl Current: ~20mA\u003c\/li\u003e\n\u003cli\u003eIsolation: Optocoupler isolated\u003c\/li\u003e\n\u003cli\u003eMounting: DIN rail or panel mount (screw terminals)\u003c\/li\u003e\n\u003cli\u003eCertification: CE marked\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -30°C to +75°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino \u0026amp; Raspberry Pi DC load switching\u003c\/li\u003e\n\u003cli\u003eTemperature control systems (PID controllers)\u003c\/li\u003e\n\u003cli\u003eIndustrial automation and motor control\u003c\/li\u003e\n\u003cli\u003eSolar and battery management systems\u003c\/li\u003e\n\u003cli\u003eHigh-current DC switching without mechanical relays\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e For loads above 20A, attach a heatsink to the relay for optimal thermal performance.\u003c\/p\u003e","brand":"FOTEK","offers":[{"title":"Default Title","offer_id":55825393320009,"sku":"SSR-40DD","price":1010.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9090\/2089\/files\/WhatsApp_Image_2026-07-17_at_4.59.23_PM_2.jpg?v=1784378660","url":"https:\/\/lahorestore.pk\/products\/ssr-40-dd-solid-state-relay-40a-dc-to-dc-3-32v-input-5-200v-output","provider":"Lahore Store","version":"1.0","type":"link"}