![Lennox 56M66 Limit Switch, 125-142°F Auto Reset — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-56m66-card.png?v=1794100216&width=1946)
![Lennox 56M66 Limit Switch, 125-142°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-56m66-specs.png?v=1794100216&width=1946)
Lennox 56M66 Limit Switch, 125-142°F Auto Reset
Lennox 56M66 Limit Switch, 125-142°F Auto Reset
Regular price
$6.55 USD
Regular price
Sale price
$6.55 USD
Shipping calculated at checkout.
Low stock: 5 left
Quantity
- 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:56M66
View full details![Lennox 56M66 Limit Switch, 125-142°F Auto Reset — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-56m66-card.png?v=1794100216&width=1445)
![Lennox 56M66 Limit Switch, 125-142°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-56m66-specs.png?v=1794100216&width=1445)
The Lennox 56M66 is a limit switch with an automatic reset function, rated for a 125-142°F temperature range. It monitors furnace or air handler temperature and interrupts the control circuit if conditions exceed the rated setting, resetting automatically once temperatures return to normal. This is a genuine Lennox replacement part.
Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 56M66 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Temperature Range | 125-142°F |
| Reset Type | Automatic |