Features: * Brand new and high quality * Made of high quality materials, practical * Solid-state relays generate a lot of heat. When the load current is greater than 10A, a heat sink must be used. Apply thermal conductive silicone grease between the solid-state relay base and the heat sink. For more than 60A, add a fan for forced cooling. *Built-in intelligent chip uses isolator to realize isolation between control end and load end, also known as "new contactless switch" *Solid-state relay core components have sensitive switching speed and high pressure resistance. *The screws are made of high-toughness rust-proof material, not easy to break, and the sliding thread column is made of copper material. *The shell is made of excellent high-temperature flame-retardant material, which is bright, translucent, strong . Specifications: Product name: solid-state relay Material: flame-retardant ABS + copper heat sink Color: as shown in the picture Model: SSR-10VA, SSR-25VA, SSR-40VA, SSR-60VA, SSR-80VA, SSR-100VA Size: 62*45mm Package contents: 1 solid-state relay Notes: 1. Due to various factors such as display brightness and light brightness, the actual color of the item may be slightly different from the image shown on the website. 2. Manual measurement data may have slight deviations. Brand new and high quality Made of high quality materials, practical Solid-state relays generate a lot of heat. When the load current is greater than 10A, a heat sink must be used. Apply thermal conductive silicone grease between the solid-state relay base and the heat sink. For more than 60A, add a fan for forced cooling. Built-in intelligent chip uses isolator to realize isolation between control end and load end, also known as "new contactless switch" Solid-state relay core components have sensitive switching speed and high pressure resistance.