Current Switches
HVAC current switches are used in a variety of HVAC systems and are crucial to system reliability and verification. Current switches detect electrical current flow and monitor motor load and fan status based on that detection. Current switches are most commonly used with blower motors, compressors, pumps, and fan assemblies....Read more
Current switches, along with sensing and monitoring airflow, are important safety features as they also will trigger alarms if a current is detected outside of expected ranges. They ensure equipment is running as intended or notify if it is not, supporting energy efficiency and preventing unnecessary shutdowns or equipment damage. Current switches are low maintenance but should be routinely inspected, particularly because current switches are vital to system longevity. Current switches also have solid-state models which have longer service lives than mechanical ones.
HVAC current switches commonly work with the building automation controls in commercial facilities. Their current detection provides feedback to the controls system, verifying equipment status. This also helps to catch any alarms or missed faults, ensuring consistent and effective operation. Broken current switches can comprise building automation system performance, so it’s always good to test these during preventative maintenance.
If your current switch readings are inconsistent or the switch fails to trigger under load, then it’s most likely time for replacement. LONG PartsPros can help! We house OEM-compatible and solid-state designs that are perfect for retrofit applications or new installations. Buy online today!