23
Fitting the expansions in a small external housing
A maximum of two input/output expansions can be
fi
tted inside the switchboard, but others can be distributed in the
fi
eld. The advantage of a
decentralised solution is that it requires fewer cables inside the switchboard enclosure. For this purpose, a housing has been produced which
has all the necessary predispositions for taking full advantage of the features of the expansions module.
Their housing is pre-drilled in such a way as to make them suitable for
fi
tting in
fl
ush-mounted wall boxes and for more generic wall-mounting. A
pre-marked section on the bottom is for routing the cables through, and another pre-marked section in the top right-hand corner, coinciding with
a
fi
xing hole, provides anti-tear protection.
IMPORTANT
: to ensure anti-tear protection, the hole associated with the pre-marked area with anti-tear function must always be anchored to
the wall. Failure to anchor this section will make the anti-tear protection useless.
The expansion module is
fi
xed to the base of the housing with 2 self-tapping screws.
Opening the housing
: the cover is secured to the base by means of three fasteners on the top and two spring clips at the bottom. There are
also two safety screws to prevent accidental opening.
1
4
1
3
3
2
Preparing the housing
: once you have opened the housing, remove the electronic card and predispose the cable inlet.
1
3
2
Wall mounting holes
Card
fi
xing holes
Cable inlet hole
Anti-tear hole
Fixing the housing
: as there are no other preliminary operations, you can proceed directly with
fi
xing the housing.
1. If you are
fi
tting the housing in a predisposed box, locate a suitable position for mounting the housing and make sure that no electrical or
service ducts (pipes, drainpipes, etc.) are routed through or near the holes you intend to use. Then, using a pencil or marker pen, accurately
mark the position of the
fi
xing points, including the hole for the anti-tear option.
2. Use 5 mm wall plugs (supplied) to
fi
x the housing to the wall. Drill holes accordingly and insert the wall plugs in the wall.
3. Route the cables through the respective holes.
4. Secure the housing by tightening the screws into the wall plugs until they are fully home, without damaging the mounting points of the housing
IMPORTANT
: when re
fi
tting the expansion card in its housing, make sure that the anti-tear tamper (the one furthest to the left as viewed in the
illustrations) is held properly closed by the tab originating from the pre-marked anti-tear area of the housing.
