Current switches are typically installed on HVAC components like fans, pumps, and compressors. When equipment starts drawing power, the switch detects the current and sends a signal to your building management system (BMS). This makes it easy to verify whether equipment is running as expected or if there’s an issue, like a failed motor or a stuck damper. In essence, current switches act as the eyes and ears of your electrical system. https://www.building-controls.....com/product-type/hva