The RM1A48A50 is a panel-mounted single-pole solid state relay featuring zero-cross switching capability, designed for industrial applications. It operates with a voltage range of 42-530 VAC (1200 VP) and handles rated currents up to 50 AAC. The device supports control voltages of 20-280 VAC or 22-48 VDC, and includes integrated overvoltage protection for enhanced safety.