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Fig. 1
Switching operation
Fig. 2
3
2
4
Fig. 3
Item 1
Item 2
Fig. 4
View 2
View 1
PE
L1
N
Item 2
Item 1
Explosion protected plug and socket system 16 A,
3-pole, 4-pole, 5-pole, GHG 516
From time to time, the locking function
protecting against inappropriate use e. g. of
industrial plugs in zone 2 has to be checked.
In the open air, the plugs must be kept with the
plug opening (pin side) pointing downwards or
be closed with protective plug caps available as
an optional extra (see general catalogue).
The user alone is responsible for the
appropriate use of this plug and socket
system in consideration of the basic
conditions existing at the plant
(see technical data).
After a short in the circuit, the functioning of
the plug and socket system and of the plugs
has to be checked.
Since the switch contacts can no more be
checked because of the flameproof enclo-
sure, the complete switch insert (flange
socket) will have to be replaced after
repeated short circuits.
6
Installation
For the mounting and operation, the re-
spective national regulations (e. g. Betr.Si.V.,
equipment safety law for Germany) as well as
the general rules of engineering will have to
be observed (IEC/EN 60079-14).
6
6.1
Mounting
The wall sockets can be mounted without
5
opening their enclosure.
In case the wall sockets are mounted directly
onto the wall, they may rest evenly only at the
respective fastening points. The chosen screw
shall match the fastening hole (see dimensional
drawing) and it must not damage the hole
(e. g. use of a washer). The device shall be
Item 3
fastened diagonally with at least 2 screws.
The wall sockets, flange sockets and
couplers shall be mounted so that the plug
hole points downwards (fig. 2).
The wall sockets can be clipped onto the
COOPER CROUSE-HINDS / CEAG mounting
plate size 4. They are laterally pushed into the
guiding groove on the left-hand side of the
mounting plate.
The respective mounting instructions will have
to be observed.
A
A
A
A
Fastening point A
16A socket 3-pol.
6.2
The electrical connection of the device may only
be carried out by electric trained staff
(IEC/EN 60079-14).
The insulation of the conductors shall reach
up to the terminal. The conductor itself shall
not be damaged.
Taking into account the respective regulations,
the properly bared conductors of the cables
shall be connected.
The plug insert (item 2, fig. 4) is removed from
the pin bushing (item 1, fig. 4), after the
fastening screws (item 3, fig. 3) have been
unscrewed. Thereafter, the plug insert can be
connected to the connections of the plug pins
(see view 1, fig. 4).
Attention: When the fastening screws
(item 3, fig. 3) get lost, they will have to be
replaced by similar screws or to be ordered
directly from the manufacturer.
Assembly is made in inverse order, after the
cable has been connected.
The connectible min. and max. conductor
cross-sections shall be observed (see technical
data). All screws and/or nuts of the supply
terminals, also of those remaining vacant, shall
be tightened down.
The conductors shall be connected with
special care in order to maintain the
explosion category.
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
6.3.1 Socket
Generally, only certified and suitable 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
protection than that which applies to the device
(see page 7 , technical data), the IP protection of
the whole device will be reduced.
The mounting directives applicable to the cable
entries used shall be observed.
B
B
Unused holes shall be closed with a certified
blanking plug in order to establish the
minimum protection category.
Care has to be taken that when fitting the cable
entries, sealing inserts appropriate to the cable
diameter are used. In case of sealing inserts
B
B
that are cut out, it shall be ensured that the
insert is properly adapted to the cable
diameter.
Fastening point B
16A socket 4,5-pol
Opening the device/
Electrical connection
Cable entries (KLE);
blanking plugs
GB
9
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