The Trane CB-2UB648W (SWT03017 / X13210263100) is a high-pressure switch designed to safeguard HVAC systems from dangerous pressure levels. It features SPST contacts and is configured to open at 650 PSI and close at 550 PSI, making it ideal for high-performance applications. The red leads provide clear wiring identification and reliable connectivity. Key Features SPST (Single Pole, Single Throw) switch Opens at 650 PSI, closes at 550 PSI Red leads for easy identification and installation Helps prevent compressor and system damage due to high-pressure conditions Designed to meet Trane OEM specifications Specifications Model: CB-2UB648W Part Numbers: SWT03017, X13210263100 Type: High Pressure Switch Switch Action: SPST, Normally Closed Opening Pressure: 650 PSI Closing Pressure: 550 PSI Lead Color: Red Application: HVAC compressor/system protection Compatible Models TWA120EKHWA TWA090E3HWA TTA090GKHRA TWA090D4HUA TWA073EW0TA TWA120EWHTA TWA090EK0WA TWA090E4HUA TWA090DKHUA TTA090G3HRA Why Choose This Item Choose the Trane CB-2UB648W high-pressure switch for dependable protection of your HVAC system. With its accurate pressure response, SPST design, and easy installation, it's an essential component to prevent compressor failure, ensure system longevity, and maintain safe operation across a wide range of Trane units.