Functional Devices products at The House Supplier include the RIBU1C pilot relay, a 10 amp SPDT relay with a coil that accepts 10-30 Vac/dc or 120 Vac, in a NEMA 1 housing. Relays like this let a low-voltage control signal switch a line-voltage load such as a pump or fan.
When selecting a relay, match the coil voltage to the control signal, confirm the contact rating covers the load current and type, and check the enclosure rating for the installation location. Follow the wiring diagram and local electrical code, and have line-voltage work done by a qualified installer.
