Mars MR210 Manual Reset Limit Switch, Open on Temp Rise 210 (39040)

About the Mars MR210 Manual Reset Limit Switch, Open on Temp Rise 210 (39040)

Get it now and save on the Mars 39040 210 Limit Switch MR210 Manual Reset 3/4" at PlumbersStock.com. 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. The circuit will remain open/off until it is manually reset. Mars makes products that we're proud to carry. Make sure you have the right part number, and if you aren't certain, try contacting us.