The GNR30DCZH is a single-phase, zero-cross solid state relay from the GNR series, designed for switching resistive AC loads. It operates with a control voltage of 4-32 Vdc to switch AC loads up to 30A within a 48-660 Vac range. Key features include built-in overvoltage protection, a transient voltage rating of 1200 Vpk, and an integrated IP20 touch-safe cover. An LED indicator provides visual status of the control input, and the relay is designed for DIN rail mounting. This robust component is suitable for various industrial applications, offering reliable performance across an operating temperature range of -40 to 80 °C.