Red Lion Controls PRA11021 Relay Module is a relay output module that expands a Red Lion control system with switchable contacts for external devices. As a dedicated relay module in the Red Lion ecosystem, PRA11021 provides a straightforward way to drive external equipment from a controller. Retail listings show the PRA11021 designation from Red Lion and identify distributors that carry the module. Typical use cases include interfacing with field devices such as pumps, valves, and indicators under the control of a Red Lion controller.
