About the Mars PS80-02-F1247 Low-Pressure Switch, Open on Pressure Drop at 10, Auto Resets at 25 (43343)
Order the Mars 43343 PS80-02-F1247 Pressure Switch, SPST/N0, Close on Rise while it's still available here at PlumbersStock.com. 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 stands by its products with their focus on design, innovation, and functionality.
