Description
Trane CNT2300 Limit Switch L140F Overview
The Trane CNT2300 is an OEM high-limit switch designed to protect Trane furnaces and air handling equipment from dangerous overheating conditions. Designated L140F, this limit switch is engineered to open the control circuit when supply-air or heat exchanger temperatures reach the rated threshold, shutting down the burner and preventing equipment damage or fire hazard. It is a direct-fit replacement for compatible Trane systems, ensuring reliable, code-compliant operation.
Key Features
- OEM Trane replacement limit switch — direct fit for compatible Trane furnace models
- L140F designation — opens circuit at 140°F to guard against overheating
- High-limit safety function shuts down burner upon temperature exceedance
- Automatic or manual reset operation (verify with equipment documentation)
- Durable construction for long-term reliability in residential and light commercial applications
- Helps maintain system safety and equipment longevity
Application
The CNT2300 limit switch is intended for use in Trane furnaces and air handlers where high-limit overheat protection is required. Always cross-reference your equipment model and wiring diagram before installation to confirm compatibility.
Specifications
- Brand: Trane
- Part Number: CNT2300
- Type: High-Limit Switch
- Temperature Rating: L140°F (opens at 140°F)
- Application: Trane Furnaces / Air Handlers
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