Yueqing Huilong’s 3 - phase solid state relay (SSR) offers a contactless switching solution for three - phase electrical systems, eliminating mechanical wear and reducing maintenance needs. This SSR features silicon carbide (SiC) semiconductor technology, enabling fast switching speeds (≤100μs) and low power consumption (≤1.5W). The relay supports a wide voltage range (380 - 480V AC) and current capacity (25 - 100A), making it suitable for heavy - duty applications like motor control, heating systems, and industrial furnaces. Its hermetically sealed design (IP65 protection) prevents dust and moisture ingress, ensuring reliability in harsh environments. The 3 - phase SSR also incorporates advanced thermal management, with a heat sink efficiency of ≥95%, reducing the risk of overheating. Compared to traditional electromechanical relays, this SSR offers a service life of over 100,000 hours, making it a cost - effective solution for continuous - operation systems.