Description
Trane CNT4821 180°F Auto Reset Limit Switch
The Trane CNT4821 is an OEM auto reset limit switch engineered to protect heating equipment from dangerous overtemperature conditions. Designed as a direct Trane replacement, this limit switch trips at 180°F and automatically resets once temperatures return to a safe operating range — minimizing downtime and eliminating the need for manual intervention after a nuisance trip.
Key Features
- OEM Trane replacement limit switch for precise fit and function
- 180°F trip temperature for reliable overtemperature protection
- Auto reset operation — resets automatically when safe temperatures are restored
- Protects heat exchangers, furnaces, and air handlers from thermal damage
- Direct drop-in replacement to reduce installation time
- Durable construction built to withstand demanding HVAC operating environments
Application
The CNT4821 is designed for use in Trane furnaces and air handling equipment where high-limit protection is required. The auto reset feature makes it ideal for applications where temporary overtemperature events may occur, allowing the system to resume normal operation without a service call.
Specifications
- Brand: Trane
- Part Number: CNT4821
- Trip Temperature: 180°F
- Reset Type: Auto Reset
- Component Type: Limit Switch
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