Cable Entries (Kle); Blanking Plugs; Flanges, Metal Plates And; External Earth Connection - Eaton GHG 262 Mode D'emploi

Fig. 8
Mounting parts, double cable end piece*
1
2
3
4
6
8
1 Mounting plate
2 Self cutting screws
3 Mounting set M5
4 Fixing screws
5 Sealing sleeve
6 Seal
7 Perforated plates
8 Clamp ring
9 Enclosure base
10 Double cable end box - upper part
11 Double cable end box - base part
12 Fixing screws for cover
13 Cable bushings
14 Semi-clamp
Fig. 9
Mounting of double cable end piece*
9 14
1 / 2
6
11
4
10
12
22
Explosion-protected safety switches
for variable frequency drives, 20 A – 180 A
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.
6.3 Cable entries (KLE);
5
blanking plugs
Generally, only certified cable entries and
blanking plugs may be used.
Flexible cables shall be used with trumpet-
shaped cable glands or other suitable
entries with additional pull-relief.
The relevant mounting directives for the
cable entries fitted shall be observed.
See Figs. 8 and 9 for details of how to mount
the double cable end box * :
7
Unscrew the 2 fixing screws, Item 4, and the
3 fixing screws, item 12 of the upper part, item
10, and remove the upper part.
Loosen the clamps, item 14, of the strain-relief.
The cable sleeves, item 13, have to be cut to
match the cable diameter.
After fitting the cable, the cable sleeve, item 13,
is to be sealed by means of the respective
clamp ring, item 8.
Finally, the upper part, item 10, is fitted and
screwed down with the fixing screws, item 4
and item 12, and the pull-relief, item 14, is put
back into place.
* not yet certified for category II D
The unused entry hole of the double cable end
box is to be closed with a sealing sleeve, item 5
(order No. GHG 740 1933 R0003).
Attention: In order to ensure that the
required minimum protection category is
maintained, it is necessary ensure that the
seal, item 6, is in the correct position.
When using cable entries with a lower IP
protection than that which applies to the device
(see technical data), the IP protection of the
complete unit is reduced.
Intrinsically safe circuits shall be fed through
cable entries that are colour-coded (light blue).
In order to ensure the minimum degree of
protection, any unused entry holes shall be
8
sealed with certified blanking plugs.
13
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
have to be cut to size, it is necessary to ensure
that the insert is properly adapted to the cable
diameter.
When using cable entries for fixed cables it is
necessary to ensure that no inadmissible high
mechanical stress is applied to the cable entry
or its seal.
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 ADE),a suitable
tool shall be used to safeguard the gland
against twisting.
Any unused metric CCH / CEAG cable entries
shall be sealed with the blanking plug certified
for these metric cable entries.
6.4 Plastic*-metal flanges, metal
plates and external earth connection *
If flange plates have to be dismantled, (e.g. to
drill entry holes), when replacing the plates, in
order to maintain the minimum degree of
protection, it is necessary to ensure that the
flange plate and the fixing clamp fit correctly.
PE conductors fed from outside shall be
connected to the PE terminal provided on
the flange.
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 fig. 10).
Warning: Metal flanges, metal plates and
metal glands shall be incorporated in the
potential equalization.
* not yet certified for category II D
GB