![Lennox 57W38 Limit Switch, 150-180°F specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-57w38-specs.png?v=1794100087&width=1445)
The Lennox 57W38 is an automatic-reset limit switch with a 3 in. insert, rated 150-180°F. It monitors furnace air temperature and interrupts the burner or blower circuit if the unit overheats, then resets itself once conditions return to normal. This is a genuine Lennox replacement part. Confirm the part number 57W38 against your equipment's parts list before ordering.
Specifications
| Part Number | 57W38 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Temperature Range | 150-180°F |
| Insert Length | 3 in. |
| Reset | Automatic |