The Relay (OEM Part No. 5724004430) is an electrical control and switching component compatible with Epiroc Simba H1354 underground drilling equipment. Designed for use within the electrical control system, the relay uses an electrically controlled switching function to manage power or signals between connected circuits and equipment components. It supports reliable electrical control and helps coordinate machine functions within the equipment’s electrical system. As a replacement electrical component, 5724004430 is suitable for routine maintenance and repair applications on Simba H1354 drilling equipment. Designed for demanding mining environments, it provides a practical solution for restoring dependable electrical switching and control system performance.