![Carrier HH18HA150 Limit Switch, 150°F Cutout specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-hh18ha150-specs.png?v=1794046364&width=1445)
The Carrier HH18HA150 is a limit switch that protects the furnace by opening the burner circuit if plenum temperature climbs too high. It is rated with a 150°F cutout and a 40°F differential, resetting once temperature drops back below that range. This is a genuine Carrier replacement part. Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | HH18HA150 |
|---|---|
| Brand | Carrier |
| Type | Limit Switch |
| Cutout Temperature | 150°F |
| Differential | 40°F |