![Carrier HH18HA420 Limit Switch, 90-120°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-hh18ha420-specs.png?v=1794056002&width=1445)
The Carrier HH18HA420 is an automatic-reset limit switch used to monitor temperature in HVAC equipment and protect the system from overheating or short cycling. It operates within a 90-120°F temperature range, opening the circuit when the limit is reached and resetting automatically once temperatures return to normal, requiring no manual intervention. This is a genuine Carrier replacement part. Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | HH18HA420 |
|---|---|
| Brand | Carrier |
| Type | Limit Switch |
| Temperature Range | 90-120°F |
| Reset Type | Automatic |