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4 Mounting
In order to provide fixing points to mount the unit onto a flat surface or bracket M3 nuts must be
inserted into one or more of the slots in the base, see illustration below. The quantity and position
of these nuts is dependant upon the users requirements. To fit a nut remove one of the end covers.
The nuts can then be slid into the slots and the cover replaced. Ensure that the fixing screws used do
not extend past the lower base surface by more than 5.5mm.
See Addendum for installation of optional DIN Rail Mounting Kit.
4.1 Environmental considerations
The NL-2XX enclosure is a fire enclosure as long as it is mounted so that none of the connectors are
facing downwards.
If a fire enclosure is used, the enclosure should be metal or plastic (with a flammability rating of UL94
V1 or better); with no holes below or to the sides of the NL-2XX when mounted. Cable entries below
the NL-2XX should be via glands that have a flammability rating as before. The NL-2XX should be at
least 10mm from any other part or side of the enclosure.
The NL-2XX does not have an IP rating and should be mounted so that moisture and dirt cannot
enter the unit.
4-1
NL-200 Series Controller User Manual
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