Question
On which DIN rails may KNX TP DIN-rail mounted devices be installed in a distribution board?
Answer
A — Standardized EN 50022 35x7.5 mm DIN rails
Correct: Any commercial board with EN 50022 35x7.5 mm DIN rails may be used.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.Standardized EN 50022 35x7.5 mm DIN rails✓
- B.Only proprietary KNX rails supplied by the manufacturer
- C.EN 50090 15x5 mm rails
- D.Only earthed metal rails used as the SELV return
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