The Baltimore Aircoil (BAC) 312178 Vibration Switch is a safety and monitoring device designed for use in cooling towers and HVAC systems. It detects abnormal vibration levels caused by imbalance or mechanical issues in fans and motors, automatically shutting down equipment to prevent damage. This switch helps protect critical components, reduces maintenance costs, and minimizes downt... https://www.partshnc.com/312178-baltimore-aircoil-bac-vibration-switch