![Lennox 52M42 Limit Switch, 180-40°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-52m42-specs.png?v=1794091298&width=1445)
The Lennox 52M42 is a limit switch that monitors furnace plenum temperature and shuts down the burner if it moves outside a safe range, rated 180-40°F with automatic reset. It is a genuine Lennox replacement part for restoring proper high-limit safety control.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 52M42 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Temperature Range | 180-40°F |
| Reset Type | Automatic |