Question

Which statement about the choke in KNX TP power supplies is correct?

KNX BasicLearnKNX InstallationMedium
Answer

C — Some PSU types have an integrated choke; others need an additional external choke

Correct: The source states exactly this.

Source

KNX Basic Course Documentation — 5.2 — p. 103

All proposed choices (exam context)
  1. A.Every PSU always requires a separate external choke
  2. B.A choke is only needed on the 230 V mains side
  3. C.Some PSU types have an integrated choke; others need an additional external choke
  4. D.Chokes are never used in KNX TP installations
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Last updated: 19 May 2026

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