Nexus NEX3031 Instructions

RCD protection module
above-desk
Full step-by-step mobile friendly
installation instructions are available
at nexus.uk or use this QR.
Safety warning
For your safety, this product must be installed in accordance with local
Building Regulations. If in any doubt, or where required by the law,
consult a competent person who is registered with an electrical self-
certification scheme. Further information is available online or from
your Local Authority.
Please read carefully and use in accordance with these safety wiring
instructions. Before commencing any electrical work ensure the
supply is switched off at the mains. Wiring should be in accordance
with the latest edition of the IET regulations (BS 7671).
To prevent fire hazard always use cable of the correct rating & type for
the application.
Warning do not exceed the load rating of this device as stated on the
rear of the product.
Safety advice
What is a safety RCD module?
Your safety RCD module continuously monitors the power supply to
any electrical appliance plugged in to it and cuts off the power within
40 milliseconds if an earth current fault is detected. This is fast enough
to prevent a fatal electric shock. Electrical equipment can become
dangerous if the wiring becomes loose, if they or their power cords
become damaged, or if they get wet. Electrocution is also possible if
fingers, spillages or other conductive bodies enter the appliance. In all
these cases your safety RCD socket will instantly cut the electricity
before you or a colleague receives a potentially fatal electric shock.
Latching operation
If the unit looses supply, perhaps in a power cut or when a hazardous
earth fault occurs, the RCD will trip and cut the power supply.
When the supply resumes through the RCD, the RCD will revert to the
original state and supply power without the need for resetting.
DUE TO LATCHING OPERATION, FOR SAFETY THIS PRODUCT
SHOULD NOT BE USED FOR ANY EQUIPMENT THAT WOULD
CAUSE A HAZARD IF RE-ENERGISED WITHOUT SUPERVISION.
NEX3031PBI-B
NEX3031 instructions
│ below-desk │ beyond-desk
Wire identification
Note - As from 1st April 2004 new colour codes were introduced.
EARTH = Green/Yellow
NEUTRAL = Black (pre Apr 04) / Blue (after Apr 04)
LIVE = Red (pre Apr 04) / Brown (after Apr 04)
Connecting in to the NEX3031
!
The NEX3031 must be used with a NEX300 series enclosure
or extrusion. The NEX3031 should never be used without an
enclosure, it has not been designed as a standalone product.
1
This instruction manual is for the NEX3031 RCD module only
and must be used in conjunction with your chosen extrusion/
housing instructions for specific cable restraint, earthing
requirements, and further installation steps.
2
Prepare the input cable, which
must be approved to
BS EN 50525-2-31:2011
HO5VV-F - Strip back the
outer sheathing to reveal
44mm for Live and Neutral
cables, 46mm for Earth.
Strip 8mm off each cable to
reveal the conductor.
HO7V-R - Strip 8mm off each
cable to reveal the conductor.
3
Loosen the terminal
screws and insert the
correct coloured wire
into each terminal and
tighten.
Ensure only bare ends
enter the terminal and
do not over tighten
the terminal screws.
4
Slide into extrusion
or assemble into a
NEX300 housing.
Ensure end caps
and cover plates
are fitted as per
extrusion or housing
instructions.
Note: Cover plate removed for clarity
Test procedure - TEST BEFORE USE
1
Ensure power is on to the NEX3001 - press the RESET button,
the RED indicator should appear.
2
Press the TEST button - the RED indicator should disappear,
DO NOT USE IF THE RED INDICATOR REMAINS.
3
Press the RESET button - the RCD has now been set for safe use
provided the RED indicator shows in the clear window.
Continued overleaf...
N E L
8mm
38mm 36mm 36mm