Description
The Trane CNT0674 is an OEM automatic (AUTO) limit switch engineered to provide reliable high-temperature protection in Trane heating systems. Designed to open the circuit when temperatures exceed safe operating levels and automatically reset once conditions return to normal, this limit switch is a critical safety component in furnace and air handler applications.
Key Features
- Operating temperature range: 170°F – 210°F
- AUTO reset function — automatically resets when temperature drops to a safe level
- OEM Trane replacement part for precise fit and reliable performance
- Protects heat exchangers and system components from thermal damage
- Direct drop-in replacement for compatible Trane furnace and heating equipment
Product Details
- Brand: Trane
- Part Number / SKU: CNT0674
- Switch Type: Automatic (AUTO) Limit Switch
- Temperature Range: 170°F – 210°F
Application
The CNT0674 limit switch is designed for use in Trane furnaces and heating systems where automatic over-temperature protection is required. When the system temperature rises above the set limit, the switch opens to interrupt the circuit and prevent equipment damage. The auto-reset feature restores normal operation once safe temperatures are reached, minimizing downtime and service calls.
Why Choose OEM Trane Parts?
Using genuine Trane replacement components ensures compatibility, longevity, and the performance standards your system was designed to deliver. The CNT0674 is built to Trane’s exact specifications, giving HVAC technicians and facility managers confidence in every installation.
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