The Trane SWT02326 SPST Low Level Float Switch is a normally closed, 10W reed switch designed to monitor liquid levels in HVAC condensate systems. It operates through a floating mechanism that moves with the liquid level, activating the magnetic reed switch to change the electrical circuit state when the specified level is reached. This switch is used in compatible air handlers, fan c... https://www.partshnc.com/trane-swt02326-spst-low-level-float-switch-10w-reed-normally-closed