Trane SWT2967 Pressure Switch WC SPST 1.15"

The Trane SWT2967 is a pressure switch in HVAC systems that controls air pressure. The size is about 4.4", and has a SPST contact arrangement with a current capacity of up to 18 amps, which is sufficient for most HVAC loads. This screw mount style provides a secure installation. This type of pressure switch differs from some with wire terminals in that it has a quick disconnect connector for easy electrical connection. The Trane monitors air pressure in the system, just like an automatic on/off switch. If the pressure goes below operational limits, it disconnects the circuit. This precise control protects your HVAC equipment from damage from high or low air pressure.