How to Protect 24V DC Digital Input Module from Accidental 230V AC Connection?

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#1 21670495 26 Nov 2013 05:31

Andra Nageswara Rao Andra Nageswara Rao

Anonymous

Post #1
21670495 26 Nov 2013 05:31

I design a module called digital input with 24 V DC as field voltage. If any one give 230 V AC in place of 24 V DC, what protection taken care in the circuit?
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#2 21670496 26 Nov 2013 11:11

DAVID CUTHBERT DAVID CUTHBERT

Anonymous

Post #2
21670496 26 Nov 2013 11:11

It might be best to convert the 230 VAC source voltage to 24 VDC using a transformer and rectifier.
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