Question
Why is a KNX TP power supply unit resistant to short circuits?
Answer
A — Because it has integrated voltage and current control
Correct: The integrated voltage and current control makes the PSU resistant to short circuits.
Source
KNX Basic Course Documentation — 5.1 — p. 102
All proposed choices (exam context)
- A.Because it has integrated voltage and current control✓
- B.Because each bus device has its own fuse
- C.Because the bus is a SELV network
- D.Because it operates from the 230 V mains
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