About the Mars PS80-01-1069 High-Pressure Switch, Open on Pressure Rise at 400, Auto Resets at 200 (43329)
Shop a great deal on the Mars 43329 PS80-01-1069 Pressure Switch, SPST/NC, Open 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 a leader in the industry for obvious reasons. They make great HVAC solutions.
