40 Amp 30mA RCD 4 Pole - Wylex5013601017686WRS40/4

RCD terminal capacity,
25 mm


Selective 3 Phase Circuits
within an Enclosure

Four Module
Wylex 4 pole RCD

40 Amp 30mA
40 Amp 30mA

RCD's Residual Current Device Offers Protection against Electric Shock
  • Wylex 4 pole RCDs may be used to provide earth fault protection on 3 phase, 3 wire systems, as the current balance mechanism does not require a neutral to be connected in order to operate effectively.
  • Wylex RCDs must never be used as the sole method of direct contact protection, but are invaluable in providing supplementary protection in high risk environments where damage may occur.
  • However Wylex 4 pole RCDs do, ideally, require a neutral conductor to be provided on the supply side of the RCD in order to ensure that the test circuit operates satisfactorily.
  • Where connection of a neutral supply is not possible, then an alternative method of ensuring that the test button is operational is to fit a suitably rated resistor between the load side neutral pole and a phase pole not associated with the normal test button operation.


RCD Selection and Info Data Sheets
Order Code
Price (ex VAT)
Price (inc VAT)
product photo

WY WRS40/4

40 Amp 30mA RCD 4 Pole - Wylex