Question

Which set of components makes up a minimum KNX TP installation?

KNX BasicLearnSystem OverviewMedium
Answer

C — A KNX power supply unit (30 V DC)/choke, one sensor, one actuator and the bus cable

Correct: The source lists exactly these four elements for a minimum TP installation.

Source

KNX Basic Course Documentation — 2 — p. 29

All proposed choices (exam context)
  1. A.A power supply, a line coupler, a sensor and an actuator
  2. B.Only a sensor and an actuator wired directly to 230 V
  3. C.A KNX power supply unit (30 V DC)/choke, one sensor, one actuator and the bus cable
  4. D.A power supply, a router, a gateway and several actuators
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Last updated: 19 May 2026

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