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Lennox 73K21 Limit Switch, 145-175°F Auto Reset
Lennox 73K21 Limit Switch, 145-175°F Auto Reset
Regular price
$13.92 USD
Regular price
Sale price
$13.92 USD
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Low stock: 2 left
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SKU:73K21
View full details![Lennox 73K21 Limit Switch, 145-175°F Auto Reset — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-73k21-card.png?v=1794100415&width=1445)
![Lennox 73K21 Limit Switch, 145-175°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-73k21-specs.png?v=1794100416&width=1445)
The Lennox 73K21 is an automatic-reset limit switch that monitors temperature inside the furnace and opens the circuit if it rises too high, protecting the heat exchanger and blower system from overheating. It is rated to open between 145°F and 175°F and resets automatically once the unit cools. This is a genuine Lennox replacement part.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 73K21 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Temperature Rating | 145-175°F |
| Reset Type | Automatic |