Description
The Siemens 141-0575 is a essential part of HVAC systems that protect equipment and increase performance. This Single Pole Single Throw airflow switch is designed to watch the static pressure inside a ducting system to keep airflow levels at an appropriate level. This unit reliably and accurately monitors pressure differentials from 1 to 12″ water column and operates in temperature over the range of -40°F to 180°F. When airflow drops below a specific level, the switch starts a manual reset that shuts off the power to the HVAC system and prevents damage from occurring. This safety feature is essentialso that fans, motors and other components don’t overheat. If airflow restriction is removed, the switch can be manually reset in order to restore normal operation.
