Functional Devices RIBU1S Relay While designed for widespread use

While designed for widespread use in Lennox systems

With its universal mounting bracket and standard 1/4-inch quick-connect terminals

Its two-piece compression design—utilizing a heavy-duty nut and sleeve—provides superior vibration resistance and mechanical stability in high-demand boiler and furnace environments

it is designed to open on pressure drop at 300 PSIG and close at 400 PSIG

Functional Devices RIBU1S Relay While designed for widespread useThe Functional Devices RIBU1S is a versatile, prepackaged enclosed pilot relay designed to streamline Building Automation Systems (BAS) and HVAC R control applications. This 10 Amp SPST NO relay features a multi voltage coil that accepts 10 30 VAC DC or 120 VAC, providing field flexibility for technicians working with varied control power sources. Its NEMA 1 rated enclosure ensures protection for internal components while the integrated Hand Off Auto