Ross Controls 474K91 Limit Switch

The Ross Controls 474K91 Limit Switch is a base-mounted sensing device designed to provide a reliable electrical signal when a pneumatic valve or actuator reaches its travel limit in Ross control systems. In Ross' catalog lineup, 474K91 is shown alongside related 482K91 and 484K91 variants, with data indicating configurations that include indicator lights mounted in the base to give immediate status feedback. Catalog references describe the 474K91 as part of the ISO/ANSI/SAE valve sub-base family and designed for integration with Ross valve assemblies where position sensing and signaling are required. Common applications include monitoring the end-of-travel position of pneumatic actuators in automated machinery and providing signaling for sequencing and safety interlocks within Ross pneumatic systems. The 474K91 variant serves as a compact, install-ready limit switch option within Ross's broader control-valve ecosystem.