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The conductors shall be connected with
special care in order to maintain the
explosion category.
The insulation of the conductors shall reach
up to the terminal. The conductor itself shall
not be damaged.
The connectible min. and max. conductor
cross-sections shall be observed (see
technical data).
Taking into account the respective regulations,
the properly bared conductors of the cables
shall be connected.
All screws and/or nuts of the supply termi-
nals, also of those remaining vacant, shall be
tightened down.
Excessive tightening may affect or damage
the connection.
The supply terminals are designed for the
connection of copper conductors. If multi- or
fine-wire connecting cables are used, the wire
ends will have to be handled in acc. with the
applicable national and international rules (e.g.
use of sleeves for strands).
6.3
Cable entries (KLE);
blanking plugs
6.3.1 Socket
Generally, only certified cable entries and
blanking plugs are permitted for use. Flexible
cables shall be used with trumpet-shaped
cable glands or other suitable entries with
additional pull-relief.
When using cable entries with a lower IP pro-
tection than that which applies to the device
(see technical data), the IP protection of the
whole device will be reduced.
The mounting directives applicable to the
cable entries used shall be observed.
Unused holes shall be closed with a certified
blanking plug in order to establish the mini-
mum protection category. In case of sealing
inserts that are cut out, it shall be ensured
that the insert is properly adapted to the cable
diameter.
Care has to be taken that when fitting the
cable entries, sealing inserts appropriate to
the cable diameter are used.
In order to ensure the required minimum
protection category, the cable glands are to be
tightened down. Observe the test torque in
the technical datas, or the mounting directives
applicable to the cable entries used.
8
Explosion protected plug and socket system 32 A, GHG 619
Overtightening might impair the protection
category.
All vacant metric COOPER CROUSE-HINDS
cable entries shall be closed with the certified
blanking plug for metric cable entries.
In case an "external earth connection" is
mounted on the plastic enclosure, it should be
connected with a max. 25mm² wire.
This earth connection is inserted through a
M6 drill in the inner wall of the enclosure (see
page 12, fig. 3).
Warning: Metal plates and metal glands
shall be incorporated in the potential equali-
zation.
6.4
Closing the device
In order to ensure the required minimum
protection category, the cover screws, the
screws of the plug and of the coupler shall be
tightened down.
The screws of the plug and the coupler shall
be tightened down.
Overtightening might impair the protection
category.
Any foreign matter shall be removed from
the device.
6.5
Taking into operation
Prior to taking the apparatus into operation,
the tests specified in the relevant national
regulations shall be carried out. Apart from
that, the correct functioning and installation
of the apparatus in accordance with these
operating instructions and other applicable
regulations will have to be checked.
Check the plug for any damages before
putting it in the socket.
The user must ensure that a uniform equi-
potential earth applies throughout when the
plug and socket system is operated.
The inappropriate installation and operation
of the plugs and sockets can entail the loss
of warranty.
EATON's Crouse-Hinds Business
7
Maintenance/Servicing
The relevant national regulations which
apply to the maintenance/servicing of
electrical apparatus in explosive atmos-
pheres, shall be observed (IEC/EN 60079-17).
Before opening the enclosure, make sure
that the device is disconnected from the
voltage, or take appropriate protective
measures.
The required maintenance intervals depend on
the specific application and will therefore have
to be determined by the user dependent on
the conditions of use.
When servicing the plugs and sockets, par-
ticularly those parts that are decisive for their
type of protection against explosion will have
to be checked (e. g. intactness of flameproof
enclosed components, of the housing, firm fit
of the cable entries and efficacy of gaskets).
If during servicing, repairs prove to be neces-
sary, section 8 of these operating instructions
will have to be observed.
8
Repair/Overhaul/
Modifications
Repairs and overhaul may only be carried out
with genuine COOPER CROUSE-HINDS spare
parts.
Should the flameproof enclosure be
damaged, only a replacement will be
permitted. In case of doubt, the respective
apparatus will have to be returned to
COOPER CROUSE-HINDS for repair.
Repairs that affect the explosion protection,
may only be carried out by COOPER
CROUSE-HINDS or a qualified electrician in
compliance with the applicable national
rules (IEC/EN 60079-19).
Modifications to the device or changes of its
design are not permitted.
9
Disposal/Recycling
When the apparatus is disposed of, the
respective national regulations on waste
disposal will have to be observed.
In order to facilitate the recycling of individual
components, plastic parts are provided with
the identification mark of the plastic material
used.
Subject to modifications or supplement of the
product range.
E
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