About the Mars PS80-02-1258 Low-Pressure Switch, Open on Pressure Drop at 150, Auto Resets at 225 (43354)
Shop now and save on the Mars 43354 PS80-02-1258 Pressure Switch, SPST/NO, Close on Rise 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 is a popular HVAC brand among both homeowners and contractors for good reason.
