Trane CNT3520 Pressure Switch

-.15"WC SPDT Pressure Switch

Trane CNT3520 Pressure Switch – OEM -0.15" WC SPDT HVAC Pressure Switch

The Trane CNT3520 Pressure Switch is a genuine OEM single-pole, double-throw (SPDT) pressure switch designed for precise airflow and pressure monitoring in Trane HVAC systems. Rated at -0.15" WC, this switch ensures accurate detection of low-pressure conditions, providing reliable system protection and efficient operation.

Manufactured to Trane’s exact specifications, the CNT3520 pressure switch delivers consistent performance, long service life, and direct-fit replacement for compatible Trane equipment.

Key Features & Benefits

• Genuine OEM Part – Factory-authorized Trane replacement

• SPDT Configuration – Single-pole, double-throw switch for reliable electrical control

• Pressure Rating: -0.15" WC for accurate low-pressure detection

• Durable Construction – Built to withstand HVAC operating conditions

• Direct-Fit Replacement – Ensures easy installation in compatible Trane units

Product Specifications

• Manufacturer: Trane

• Part Number: CNT3520

• Product Type: Pressure Switch

• Switch Type: SPDT (Single-Pole Double-Throw)

• Pressure Rating: -0.15" WC

• OEM Status: Official OEM replacement part

Applications

• Residential and commercial Trane HVAC systems

• Monitoring airflow and pressure in furnaces, air handlers, and other HVAC equipment

• Replacement for faulty or worn pressure switches to maintain system safety and efficiency

Ensure precise pressure monitoring and reliable system operation with the Trane CNT3520 -0.15" WC SPDT Pressure Switch, a trusted OEM solution for your HVAC system.