What is the difference between the following power factor regulators; Varlogic NR6 and Varlogic RT6?
The difference between the RT6 and Varlogic NR regulators in illustrated in the attached document (refer to the third page in Extract - Reactive Energy Management Catalogue.pdf). Simply, RT6 is a basic type of regulator. It has lesser options and is cheaper. And yes, both regulators introduce/remove steps based on the target power factor.
The attached document is extracted from the Reactive Energy Management catalogue. The complete catalogue could be downloaded from our global website via the following direct link: http://download.schneider-electric.com/files?p_File_Id=719876068&p_File_Name=PFCED310003EN.pdf