Mars L125-2 Limit Switch, Open on Temp Rise at 125, Auto Close at 105 (39086)

About the Mars L125-2 Limit Switch, Open on Temp Rise at 125, Auto Close at 105 (39086)

Shop a great deal on the Mars 39086 L125-2 Limit Switch here with the pros at PlumbersStock. Limit switches are sensors that detect when a furnace has exceeded operational temperature limits and shut the appliance down as a safety measure. The way it works is that if your temperature gets to a concerning level, the limit switch will automatically open the circuit so it shuts off. It will remain off until the switch automatically closes the circuit when the temperature reaches the off threshold. Mars makes reliable HVAC products that will get the job done.