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24VDC Power Supplies & Leakage Current

Les Spiteri
Hi, looking for some thoughts.


I recently had a customer asking for an RCBO upstream of a 24VDC power supply (i.e. on the 240Vac incoming) and I thought "never seen that before".
  • What possible reason is there for doing this?

  • Would this be considered "safer" than using an MCB?

  • What would happen without RCBO one if there was leakage inside the 24Vdc power supply?

  • Only time I have previously used RCBOs was where you provide a socket in enclosures as per all guidelines now.


Thanks Folks

Parents
  • 0
    Out of curiosity - is this 24V DC supply for a special location - ex environment or similar? 


    or a Motor control centre maybe?
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  • 0
    Out of curiosity - is this 24V DC supply for a special location - ex environment or similar? 


    or a Motor control centre maybe?
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