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Explosion-protected main-, load- and safety switch 25 A up to 700 A
22
Information on the safe use of third-party
products, unless non specified in these
operating instructions, have to be requested
from the respective manufacturer of the
equipment.
During maintenance, the dust layer must be
removed from the distribution board.
All screw points should be checked for
tightness.
If the enclosure is opened for maintenance
purposes , ensure that the "nR" properties are
not affected. This could be done by testing the
restricted breathing properties as per section 9,
for example.
If during servicing repairs prove to be
necessary, section 8 of these operating
instructions will have to be observed.
8
Repairs / Overhaul /
Modification
Maintenance / repair work must be performed
only by skilled and trained personnel using
spare parts identical or comparable to the
original parts.
Repairs that affect the explosion protection,
may only be carried out by
Cooper Crouse- Hinds/CEAG or a qualified
electrician in compliance with the applicable
national rules (IEC/EN 60079-19).
Modifications to the device or changes to its
design are not permitted.
9
Testing the restricted
breathing properties
All screw plugs and cable glands must be
correctly tightened.
Overtightening the screw elements can destroy
the thread.
The mounting directives applicable to the cable
entries used shall be observed.
Connect the testing equipment to the test
connection (screw plug M6) on the light fitting
(see Fig. 4).
Use the values specified in
IEC/EN 60079-15 22.6.2.2.2
for the test (see Fig. 4).
Close the test connection again.
EATON's Crouse-Hinds Business
10
Disposal/Recycling
When the apparatus is disposed of, the
respective national regulations on waste
disposal will have to be observed.
Subject to modifications or supplement of the
product range.
GB
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