![Lennox 10M74 Insertion Limit Switch, 155°F/125°F — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-10m74-card.png?v=1794100171&width=1946)
![Lennox 10M74 Insertion Limit Switch, 155°F/125°F specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-10m74-specs.png?v=1794100172&width=1946)
Lennox 10M74 Insertion Limit Switch, 155°F/125°F
Lennox 10M74 Insertion Limit Switch, 155°F/125°F
Regular price
$16.42 USD
Regular price
Sale price
$16.42 USD
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Low stock: 4 left
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- Purchase Orders & Tax-Exempt Welcome Contractors, municipalities, schools and businesses: email a PO, or send your exemption certificate once and tax comes off every order.
SKU:10M74
View full details![Lennox 10M74 Insertion Limit Switch, 155°F/125°F — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-10m74-card.png?v=1794100171&width=1445)
![Lennox 10M74 Insertion Limit Switch, 155°F/125°F specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-10m74-specs.png?v=1794100172&width=1445)
The Lennox 10M74 is an insertion limit switch used to monitor duct or plenum temperature in furnace and air handling equipment. It trips at 155°F on the outgoing side and 125°F on the incoming side, interrupting the control circuit to help protect the system from overheating. This is a genuine Lennox replacement part.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 10M74 |
|---|---|
| Brand | Lennox |
| Type | Insertion Limit Switch |
| Trip Temperature (Out) | 155°F |
| Trip Temperature (In) | 125°F |