Operating Instructions DuoFern Universal Actuator 9470-1 (1-channel) 9470-2 (2-channel) F. Tepaße Updated April 08, 2024 10:38 Follow Download PDF (9470-1 / 1-channel) Download PDF (9470-2 / 2-channel) Related articles Connection of pushbutton or switch for external control? What has to be considered? The connected load does not switch. Only a click can be heard. What can this be? What is the staircase function and how is the switch-on time calculated? What are scenes? Control tubular motor actuator externally. Button or switch for external control?