The QLT Power SSR-35048ZD1B is a solid state relay with a control input voltage of 4-16VDC, rated for 350A, 44-480VAC, and part of the SSR-Z series. It has a diagonal-type connection terminal, complete with a power indicator and built-in zero current and leakage current protection. This SSR is suitable for industrial, commercial, and household applications, and it is designed for heavy loads in harsh environmental conditions. The SSR-35048ZD1B requires no contact maintenance and features low power supply current and high switching capacity, making it a reliable and efficient choice.