Functional Devices RIB01P30-NONC Relay 323055-751 widening the gap lowers the

widening the gap lowers the diameter to reduce fan RPM

ensuring consistent flue gas extraction and steady combustion airflow

check for airflow restrictions like a dirty air filter or blocked returns

For higher pressure requirements up to 50 PSI

this valve provides a 200 psi close-off pressure for reliable shutoff

Functional Devices RIB01P30-NONC Relay 323055-751 widening the gap lowers theThe Functional Devices RIB01P30 NONC Relay is a heavy duty, field proven solution for contractors managing high current HVACR and industrial automation loads. This 30A DPST relay features a dual pole configuration with one Normally Open (NO) and one Normally Closed (NC) contact set, providing versatile switching logic for energy management and fire safety systems. Housed in a NEMA 1 plenum rated enclosure, it is engineered for surface, nipple, or