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Save on the Mars 39023 190 Limit Switch L190-40 Auto Reset 3/4" online 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. It will remain off until the switch automatically closes the circuit when the temperature reaches the off threshold. Mars has a strong reputation in the heating and cooling industry for quality manufacturing.
| Manufacturer: | Mars |
| Mpn # | 39023 |
| Weight | 0.10 lbs. |
