I understand that KNX/EIB actuators are used to switch on/off lights in fancier homes. Some of these actuators have "current detection" feature, and some do not.
What can that feature do?
Is it for systems where you may want to know much power each circuit is consumes? Or is it a safety/protection thing?
This question should be tagged KNX/EIB, but these tags don't exist.
Examples: https://library.e.abb.com/public/cfaa4977bc174ddaa7c6da77c9f46ce0/Technical%20Data%20SAS%20x1661.pdf
http://gvshome.com/product/gvs-kbus-switch-actuator-8-foldwith-current-detector/