About the Mars PS80-02-F1253 Low-Pressure Switch, Open on Pressure Drop at 35, Auto Resets at 60 (43349)
Save on the Mars 43349 PS80-02-F1253 Pressure Switch, SPST/N0, Close on Rise from PlumbersStock. Pressure switches make contact on pressure rise/fall, which enables its switching operation. A pressure switch senses negative pressure in a furnace and shuts it down as a safety measure against harmful fumes and gas leaks.
As the manufacturer describes it, MARS Pressure Switches deliver the reliability and performance that makes them the most trusted electromechanical sensor. The MARS line of pressure switches cover many new R410A applications along with traditional pressure setting switches. It's easy to replace. Mars is an industry leader in both innovation and affordability.
