Question
For primary protection of the KNX bus line, what minimum nominal discharge current (10/350 us) per conductor is required?
Answer
D — 2,5 kA.
Correct: at least 2,5 kA (10/350 us) per conductor is required for the bus line.
Source
KNX Basic Course Documentation — 11 — p. 112
All proposed choices (exam context)
- A.5 kA.
- B.12,5 kA.
- C.0,25 kA.
- D.2,5 kA.✓
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