Eaton CROUSE-HINDS-Serie Betriebsanleitung Seite 9

6 Installation
For the mounting and operation, the respective
national regulations as well as the general rules
of engineering will have to be observed
(IEC/EN 60079-14).
The improper installation and operation of plugs
and sockets may result in the invalidation of the
guarantee.
6.1 Mounting
The wall sockets can be mounted without
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 fastened diagonally with at
least 2 screws.
The wall sockets, flange sockets and
couplers shall be mounted so that the plug
hole points downwards (see page 15, fig. 2).
The wall sockets can be clipped onto the
Cooper Crouse-Hinds 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 B
A A
B
Fastening point A Fastening point B
16 A socket 3-pol. 16 A socket 4,5-pol.
Explosion protected plug and socket system 16 A,
3-pole, 4-pole, 5-pole, GHG 511
6.2 Opening the device/
Electrical connection
Before opening the apparatus, ensure that it
has been isolated from the voltage supply,
or take appropriate protective measures.
The electrical connection of the device may
only be carried out by skilled staff
(IEC/EN 60079-14).
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.
The plug insert (page 15, item 2, fig. 4) is
removed from the pin bushing (page 15, 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 page 15, view 1, fig. 4).
Attention: When the fastening screws
(page 15, 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.
To connect the coupler, unscrew and remove
B
the 4 fixing screws of the flange from the body
sleeve. The coupler insert can then be
connected to the respective contacts.
When reassembling, the flange screws shall be
screwed into the body sleeve with a maximum
test torque of 1 Nm.
B
All screws and / or nuts of the supply terminals,
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 internation-
al 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 trum-
pet-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 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 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 that are cut out, it
shall be ensured that the insert is properly
adapted to the cable diameter.
In order to ensure the required minimum
protection category, the cable glands are to
be tightened down.
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.
Warning: Metal plates and metal glands
shall be incorporated in the potential
equalization.
6.3.2 Plug/coupler
In general, only the sealing inserts fitted in the
plug or in the coupler may be used. When
mounting the cable, attention has to be paid
that sealing inserts matching the cable
diameter be used. After having connected the
cable, the coupling ring (page 15, fig. 2, item 4)
is to be screwed fingertight until the sealing
effect is obtained. Then the screws item 5, of
the pull-relief item 6, are to be tightened down.
Mind! Overtightening might impair the
pull- relief effect!
In case an "external earth connection" is
mounted on the plastic enclosure, it should
be connected with a max. 25 mm² wire.
This earth connection is inserted through a M6
drill in the inner wall of the enclosure
(see page 16, fig. 5).
Warning: Metal plates and metal glands
shall be incorporated in the potential
equalization.
GB
9