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It’s important to understand that the 17th Edition differentiates between installations depending on the user. E.g. the regulations talk of “installations not under the supervision of skilled or instructed persons” and “socket
outlets for general use by ordinary persons” This type of installation requires “Additional Protection” by use of 30mA RCDs on many circuits that have not previously needed protection by RCDs.
Wylex offer a variety of consumer units and devices that will help the designer and installer to meet these
new regulations.

  • This device transforms a normal MCB protected circuit into an RCD protected circuit.
  • The rating for this device is 10 Amp 30 mAmp.


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