Section2 Conformance with CE marking
2-2
2-2 Method for adapting to CE marking
2-2-1 Metal Enclosure
MICREX-SX Series products are classified as "enclosed type" equipment. "Enclosed type" means equip-
ment that is designed on the condition that it is installed in an enclosure such as a metal enclosure, so that
electric shock or other accidents do not occur due to the human body coming into contact with the product
(MICREX-SX). In other words, there may be danger of an electric shock, etc., if the product is not accom-
modated in an enclosure. (For example, a steel wire may be inserted in one of the cooling slots provided
on the product body.)
MICREX-SX Series products also need to be installed in a metal enclosure in order to control the electro-
magnetic radiation noise (EMI) they emit. Basic specifications for the metal enclosure are as follows.
Material : SPCC (high-tensile-strength steel)
Plate thickness: Min. 1.6 mm
Power supply : Power supplied to the control panel should be protected from external surge voltage with
an insulating transformer.
Remarks : Should be structured so that an electromagnetic radiation noise does not leak from the
enclosure.
For example, in the figure below, a box-type door is used, and the enclosure has an eave-
like protrusion that overlaps on the side faces of the door when closed.
The important point here is that the overlap of the door and the enclosure's main body
effectively prevents electromagnetic radiation noise from leaking out of the enclosure.
扉
ひさし
Door
Eave
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