Trane SWT3402 High Pressure Switch – Open 650 PSI / Close 550 PSI

Description

The Trane SWT3402 is an OEM high pressure switch engineered to protect refrigerant circuits in Trane HVAC systems. Designed for precision pressure monitoring, this switch opens at 650 PSI and closes at 550 PSI, providing a reliable safety cutout to guard compressors and refrigeration components against damaging high-pressure conditions.

Key Features

• OEM Trane replacement high pressure (HP) switch
• Open set point: 650 PSI
• Close set point: 550 PSI
• Protects compressors and refrigerant circuits from high-pressure faults
• Direct OEM replacement for compatible Trane equipment
• Engineered for dependable, long-term performance in commercial and residential HVAC applications

Application

The SWT3402 is a direct OEM replacement pressure switch for use in Trane heating, cooling, and heat pump systems. It monitors refrigerant-side pressure and interrupts the circuit when pressure exceeds the open threshold of 650 PSI, automatically resetting when pressure drops back to the 550 PSI close point. This safeguards compressors from damage caused by abnormal high-side pressure conditions.

Specifications

• Part Number: SWT3402
• Switch Type: High Pressure (HP)
• Open Pressure: 650 PSI
• Close Pressure: 550 PSI
• Brand: Trane