![Lennox 29M74 Limit Switch, 140°F — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-29m74-card.png?v=1794100356&width=1946)
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Lennox 29M74 Limit Switch, 140°F
Lennox 29M74 Limit Switch, 140°F
Regular price
$13.62 USD
Regular price
Sale price
$13.62 USD
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Low stock: 3 left
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SKU:29M74
View full details![Lennox 29M74 Limit Switch, 140°F — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-29m74-card.png?v=1794100356&width=1445)
![Lennox 29M74 Limit Switch, 140°F specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-29m74-specs.png?v=1794100357&width=1445)
The Lennox 29M74 is an SPST limit switch that opens its single set of contacts at 140°F to shut down the burner if a furnace overheats, with a 30°F differential before the switch closes again as the unit cools. It is a genuine Lennox replacement part.
Confirm this part number against your equipment's parts list before ordering.
Specifications
| Part Number | 29M74 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Open Temperature | 140°F |
| Differential | 30°F |
| Switch Type | SPST |