88888
Cooper Crouse-Hinds GmbH
Explosion-protected plugs and sockets, 7-pole
GHG 511 .7.. / 592 and 21-pole GHG 511 .9.. / 591
3
Conformity with standards
The apparat is conform to the standards
specified in the EC-Declaration of conformity.
It has been designed, manufactured and
tested according to the state of the art and to
DIN EN ISO 9001
94/9 EC: Equipment and protective systems
intended for use in potentially explosive at-
mospheres.
The apparats fulfil further requirements, such
as the EC directive on electromagnetic
compatibility (2004/108/EEC)
4
Field of application
The multiple plug and socket systems are
suitable for use in Zone 1 and 2 hazardous
areas acc. to
IEC 60079-10 and IEC (EN) 60079-14!
The enclosure materials employed, including
the exterior metal parts, are made of high-
quality materials which ensure a corrosion
protection and resistance to chemical
substances corresponding to the
requirements for use in a “normal industrial
atmosphere”:
- impact resistant polyamide
- glass-fibre reinforced polyester
- special steel AISI 316 L
In case of use in an extremely aggresive
atmosphere, please refer to manufacturer
5
Use/Properties
The multiple plugs and sockets are used for the
power supply of local controls with varying loca-
tions, as well as of electrical installations, mobile
machinery and drives in hazardous areas.
The plugs and sockets can also be used in a
„normal industrial area“.
The electrical limiting values that are
decisive for the intrinsic safety shall be
observed.
The apparatus connected to the plug
shall be suitable for the applied mains
voltage.
5.1
The 7-pole plug and socket is fitted
with an interlocking switch and can be used
up to max.500 V, 20 A.
The plug can only be inserted into the socket
and withdrawn when no voltage is applied.
The switch, Item 4, can only be switched on,
if the plug, item 1, has been inserted properly
into the socket, item 2.(see P.15; fig.1 and 2)
After switching on the interlocking switch, item
4, the plug cannot be withdrawn.
In order to guarantee the type of protection,
also when the plug has been inserted, the
bayonet ring, Item 3, of the plug, Item 1, has
to be turned until it reaches the stop on the
socket, Item 2 (see P.15; Figs. 1 and 2).
To switch off and withdraw the plug, proceed
in the reverse order. After withdrawing the
plug from the socket, seal the socket with the
hinged cover, Item 5, and secured with the
bayonet catch, Item 6 (see page15;Figs.1
and 2).
After a short in the circuit, the functioning of
the plug and socket shall be checked.
As, due to the flameproof encapsulation, it is
not possible to check the switch contacts, the
complete switch insert (interlocking switch)
has to be replaced after several short
circuits.
5 . 2
5 . 2
5 . 2
5 . 2
5 . 2
The 21-pole plug and socket does
not feature an interlocking switch. It can be
operated up to max. 250 V, 10 A.
When using plugs and sockets (inserting or
withdrawing plugs, etc.), the following shall be
observed:(see page15; fig.3)
-
After inserting the plug, Item 1, the
bayonet ring, Item 3, of the plug has
to be interlocked with the socket.
-
After this, the engaging nose, Item 8,
on the hinged cover, Item 5, of the
socket engages in the recess with
locking hook of the plug, Item 7, that
is provided for this purpose.
-
To disengage, the locking hook of the
plug has to be disengaged with a
pointed tool (e.g. size 2 screwdriver).
-
The bayonet ring, Item 3, can then be
released and the plug can be
withdrawn from the socket.
After withdrawing the plug from the socket,
seal the socket with the hinged cover, Item 5,
and secure it with the bayonet catch, Item 6.
(see page15; fig.3)
Warning:
The plug may only be inserted or
withdrawn when no voltage is being
applied!
The sole responsibility with respect to the
suitability and proper use of the plugs
and sockets with regard to the basic
requirements of these instructions (see
technical data) lies with the operator.
When used in open air installations, the plugs
must be kept with the plug opening (pin end)
facing downwards or be sealed with
protective plug caps that are available as an
optional extra (see main catalogue).
The data according to sections 3 and 4
shall be taken into account during use.
Applications other than those described
are not permitted withiut Cooper Crouse-
Hinds´ prior written consent.
During operation the instructions stated
in section 7 of the operating instructions
shall be observed
6
Installation
The relevant national regulations(e.g. Betr.Si.V
the equipment safety law for Germany) and
the generally recognized rules of engineering
apply for the installation and operation.
6.1
Mounting
6.1.1
Wall socket
The wall sockets can be mounted without
opening the enclosure.
When wall sockets are mounted directly onto
the wall, they shall 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 fastened diagonally with at least 2
screws.
The wall-mounting and flange sockets
shall be mounted in such a way that the
plug opening does not face upwards (Fig. 2).
The wall sockets can be clipped onto the
COOPER CROUSE-HINDS mounting plate
size 5. They are pushed laterally into the
guiding groove on the left-hand side of the
mounting plate.
See the respective mounting instructions.
6.1.2
Socket contact pins and plug pins
Socket contact pins and plug pins
Socket contact pins and plug pins
Socket contact pins and plug pins
Socket contact pins and plug pins
See Section 6.2. for details of how to
assemble the contact pins of the 21-pole wall
socket and the plug pins of the 7-pole and
21-pole plugs.
Fastening point A
wall socket 7- and 21-pole
A
A
A
A
