Description
The Trane CNT1045 is a genuine OEM limit switch designed for HVAC systems. It serves as a safety control that monitors temperature and protects heating and cooling equipment from overheating. When the temperature exceeds a preset limit, the switch opens the circuit to prevent damage, ensuring safe operation and long-term reliability.
Key Features
- Function: Temperature-based limit switch for overheat protection
- Temperature Setting: Opens at approximately 180°F (82°C)
- Contact Configuration: Normally open or normally closed depending on installation
- Insert Length: Approximately 22 inches for placement in duct or plenum locations
- Application: Overheat protection in furnaces, air handlers, and other HVAC equipment
- Construction: Durable switch built for HVAC operating conditions
- Replacement: Direct OEM replacement for compatible Trane and American Standard units







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