Carrier HH12ZB180 Limit SwitchCarrier HH12ZB180 is a durable limit switch built for reliable performance in HVAC control applications. This electrical switch delivers precise snap action operation, helping protect equipment and ensure dependable readings in industrial control environments. Designed for straightforward installation, the HH12ZB180 is a compact, robust choice for maintenance and retrofit projects. It supports accurate end of travel sensing, safe interlock functions,

Nominal size: 1 inch

baseplate-mounted unit provides dependable start-up in commercial and industrial settings

ensuring quality and compatibility with multiple standards

05" diameter

Ease of installation: straightforward replacement for professionals and DIY homeowners

45–99°F set point

and process systems

and a 60-minute retry interval

000 BTU/hour individual load)

Replaces TF24 and TFX24-US for easy retrofits and upgrades

repeatable performance

120/208/240 VAC input