operation manual
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Function and device overview
3 Function and device overview
The Homematic IP Switch Actuator for heating systems
reliably switches heating pumps, circulation pumps, boil-
ers, electrical radiators and other loads via two channels.
This allows comfortable and demand-based regulation
of the room and water temperature according to your
personal needs via the Homematic IP smartphone app.
The device can be used in connection with the Home-
maticIP Access Point or the Central Control Unit CCU2/
CCU3 e.g. as heat demand relay for controlling heating
pumps in connection with radiator thermostats or floor
heating actuators.
Device overview (see fig. 1):
(A) System button (teach-in/pairing button and LED)
(B) Cover
(C) Connecting terminals for L (phase conductor)
(D) Connecting terminals for N (neutral conductor)
(E) Connecting terminals PE (protective conductor)
(F) Connecting terminals for switching channel 1
(N.O. contact)
(G) Connecting terminals for switching channel 2
(change-over contact)