Installation; Mounting; Opening The Device/Electrical Connection; Cable Entries (Kle); Blanking Plugs; Screw Plugs - Eaton CROUSE-HINDS Série Mode D'emploi

The "EMERGENCY-STOP" version conforms
to the requirements of IEC/EN 60204-1.
To prevent unauthorized switching, the
switches can be locked in the "OFF" position
by means
of 3 padlocks, see Fig. 1,P . 15, (shackle
diameter of the padlocks up to 4-6 mm,
preferred diameter 6 mm).
A built-in locking device prevents the opening
of the enclosure in the "OFF" position.
The data according to sections 3 and 4 shall
be taken into account during use.
Applications other than those described are
not permissible without a written declara-
tion of consent from Messrs. COOPER
CROUSE-HINDS GmbH.
During operation the instructions stated in
section 7 of the operating instructions shall
be observed.
The sole responsibility with respect to the
suitability and proper use of the control
switches according to the basic require-
ments of these instructions (see technical
data) lies with the operator.
6

Installation

The relevant national regulations and the
generally recognized rules of engineering apply
for the installation and operation.
(IEC/EN 60079-14)
The improper installation and operation of
safety switches may result in the invalida-
tion of the guarantee.
6.1

Mounting

The safety switches can be mounted without
opening the enclosure.
When being mounted directly onto the wall,
the safety switches shall rest evenly only at the
fastening points provided for them. The chosen
screw shall match the fastening hole (see
dimensional drawing) and they shall not
damage the hole (e.g. use of a washer).
The safety switches GHG 262, GHG 263 and
GHG 264 shall be fixed diagonally with a
minimum of 2 screws. The safety switches
GHG 265 and GHG 266 shall be fixed with a
minimum of 4 screws.
If the screws are overtightened, the
apparatus may be damaged.
The safety switches GHG 262 and 263
(3-pole only), are suited for plug-in mounting on
CEAG apparatus holders, sizes 2 and 3,
whereby they are pushed into the guide groove
from the top of the apparatus holder (see Fig.
2, page 2 and Fig. 3).
Explosion-protected safety switch 20 A - 180 A
The safety switches GHG 263 (6-pole),
GHG 264, GHG 265 and GHG 266 are suited
for mounting on CEAG apparatus holders size 3
by means of self-cutting screws (see Fig. 4,
page 2).
See the respective mounting instructions.
6.2 Opening the device/
Electrical connection
The electrical connection of the apparatus
may only be carried out by skilled staff.
(IEC/EN 60079-14)
Before opening the apparatus, ensure that it
has been isolated from the voltage supply,
or take appropriate protective meassures.
Before opening, set the switch to the "ON"
position.
The properly bared conductors of cables shall
be connected with due regard to the respective
regulations.
To maintain the explosion protection,
conductors shall be connected with special
care.
The insulation shall reach up to the terminal.
The conductor itself shall not be damaged.
The minimum and maximum conductor
cross sections that can be connected shall
be observed (see technical data).
If desired, the safety switch GHG 264 (80 A)
can be connected using 35 mm² cable lugs
(DIN 46 234 / 8-35).
The switches of the types GHG 265 (125 A)
and GHG 266 (180 A) may only be connected
with cables lugs, sizes 50 mm² (DIN 46 234
8-50) and 70 mm² (DIN 46 234 / 8-70) or
95 mm² (DIN 46 234 / 10-95) and
120 mm² (DIN 46 234 / 10-120) or
25 mm² (DIN 46 234 / 8-25) and
35 mm² (DIN 46 234 / 5-35), that are included
in the scope of delivery.
Attention: The cable lugs should be crimped
onto the cable in a workmanlike manner.
It is to be ensured that the required min. air
gaps are kept (at 690 V > 12 mm).
In the case of mixed Ex-e / Ex-i installations,
the required minimum clearances
shall be maintained (see, for example
IEC/EN 60 079-11).
When apparatus is open, (isolate voltage
supply), it is necessary to ensure that no
voltage is carried over into the connected
intrinsically safe circuits.
All screws and/or nuts of connection terminals,
including those not in use, shall be tightened
down securely.
Excessive tightening may affect or damage
the connection.
EATON's Crouse-Hinds Business
The terminals are designed for the direct
connection of conductors with copper wires.
If multi- or fine-wire connection cables are
used, the wire ends shall be handled acc. to
the applicable national and international
regulations (e.g. use of multicore cable ends).
The position of the connection terminals is
shown in the wiring diagrams on the switch base
and on page 10 of these operating instructions.
To ensure that the safety switch closes
correctly, switching at the switch shaft of the
switch insert is not permitted when the
apparatus is open.
If, to facilitate the feeding of conductors into the
enclosure, the switch insert is removed from
the enclosure base, it shall be put back correctly
before the electrical connection is made.
When fitting the apparatus cover, care shall be
taken to ensure that the switch shaft of the
switch insert engages correctly in the carrier
hole of the switch handle (pay attention to the
correct position of the switch handle).
6.3 Cable entries (KLE);
blanking plugs; screw plugs
Generally, only certified cable entries, screw
plugs and blanking plugs may be used.
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 8 + 9), the IP protection of the
complete unit is reduced.
Intrinsically safe circuits shall be fed through
cable entries that are colour-coded (light blue).
The relevant mounting directives applicable
to the cable entries fitted shall be observed.
In order to ensure the minimum degree of
protection, any unused entry holes shall be
sealed with certified blanking plugs or screw
plugs.
When fitting cable entries, care has to be taken
that the sealing inserts are suitable for the
cable diameter. In the case of sealing inserts
that are cut out, it is necessary to ensure that
the insert is properly adapted to the cable diam-
eter.
In order to ensure the required minimum
degree of protection, the cable entries shall be
tightened down securely.
Overtightening can impair the degree of
protection.
Warning: When tightening the cap nut of
the metal cable entry (e.g. type ADL/ADE),
a suitable tool shall be used to safeguard
the gland against twisting.
Any unused cable entries shall be sealed with
the blanking plug certified for these cable
entries.
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