![Lennox 73K18 Limit Switch, 140-170°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-73k18-specs.png?v=1794100165&width=1445)
The Lennox 73K18 is a limit switch with an automatic reset function, rated for a 140-170°F temperature range. It is installed in furnace and air handler systems to monitor temperature and interrupt the control circuit if conditions exceed the rated setting, then reset automatically once temperatures return to normal. This is a genuine Lennox replacement part.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 73K18 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Temperature Range | 140-170°F |
| Reset Type | Automatic |