Description
The Carrier HH18HA199 Limit Switch is a high quality OEM thermostat designed to protect your heating system by monitoring internal temperature and interrupting operation if it reaches approximately 200 °F.
Key Features
- Certified factory authorized by Carrier for exact compatibility, helping maintain system integrity and warranty compliance.
- Opens at 200 °F with manual reset (M/R) operation, ensuring safety when normal temperature limits are exceeded.
- Single Pole Single Throw (SPST) switch type for clear and reliable circuit interruption.
- Compact design, easy installation and dependable operation in residential or light commercial HVAC heating applications.











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