Ashcroft B424B-150WC Pressure Switch 0-150" WC

The Ashcroft B424B-150WC Pressure Switch is a mechanical control that is used to monitor and react to the pressure variations in HVAC systems. It operates on a preset range of electrical contacts that are opened or closed by a preset range of the pressure sensed over a range of 0 to 150 inches of water column. The switch is installed in air handlers, furnaces or refrigeration circuits and monitors the conditions of airflow or system pressure and provides feedback to the control system. It facilitates secure operation, correct sequencing, and coordinated performance during heating and cooling processes.