Trane CNT3787 Auto Limit Switch

Description

The Trane CNT3787 Auto Limit Switch is a genuine OEM safety control component designed for residential and light‑commercial furnaces. This 260 °F automatic reset limit switch helps protect HVAC systems by monitoring temperature rise and interrupting operation if internal conditions exceed safe limits. Once temperatures return to normal, the switch automatically resets — minimizing downtime and reducing the need for manual service.

Key Features

• OEM Trane Quality: Built to meet original equipment specifications, ensuring compatibility and long‑lasting reliability.
• 260 °F Activation Temperature: Designed to open the circuit at high internal temperatures to prevent unsafe operating conditions.
• Automatic Reset Function: Resets itself once temperature normalizes so the system can resume operation without manual intervention.
• SPST (Single‑Pole, Single‑Throw) Contact Type: Simple, dependable electrical switching action.
• Quick‑Connect Terminals: Facilitates easier installation and replacement by HVAC professionals.