Cable entries, blanking plugs, screw plugs, trumpet-shaped
Fig. 5
Blanking plug
Seal 1
+
Seal 2
Pressure screw
Fig. 6
Special spanner for tightening pressure
screws of cable entries
Fig. 7
Seal
Fig. 8
Pull relief
Trumpet-shaped gland
Intermediate gland
Counter-nut
Seal inserts
Fig. 9
Enclosure wall
cable glands, reducing glands and drain plugs
Use COOPER CROUSE-HINDS spanners
with a side opening can be used to facilitate
the tightening of the pressure screw when the
cable entry has been mounted (see Fig. 6).
Order No. GHG 960 1951 R0001 for
Set 1 (M12, 16, 20, 25, 32 and 40)
Order No. GHG 960 1951 R0002 for
Set 2 (M50 and M63)
Optionally, cable entries with colour-coded
(light blue) pressure screws can be used for
intrinsically safe circuits (see main COOPER
CROUSE-HINDS catalogue for order
numbers).
6.1.2 Blanking plugs
The following shall be observed when
mounting blanking plugs for COOPER
CROUSE-HINDS metric cable entries (see
Fig. 5):
1.
Only the blanking plug associated to
the KLE shall be used.
2.
The KLE shall be provided with seal
inserts (Seals 1 and 2).
3.
The head of the blanking plug shall,
as shown in Fig. 5, be on the outside.
4.
The blanking plug shall be pushed
into the KLE until it reaches the stop.
5.
The pressure screw of the KLE shall
be tightened down as described in
6.1.1.
6.1.3 Screw plug
The screw plug shall be screwed tightly into
the threaded hole in the enclosure using a
suitable tool, e.g. 8 mm socket head spanner
or a suitable screw driver.
Counter-nut
A counter-nut shall be used for through holes
or enclosures that are less than 4 mm thick.
An additional seal shall be used for uneven
sealing surfaces.
Warning: In general, the M50 screw plug
shall be mounted together with the seal
supplied.
6.1.4 Trumpet-shaped gland
A suitable tool, e.g. a fork spanner, shall be
used for mounting the intermediate gland in
the trumpet-shaped gland in such a way that
it cannot twist.
It is necessary to ensure that the gland
cannot twist once the cable has been fed in
and the trumpet-shaped gland mounted (e.g.
by using a counter-nut, see Figs. 7 + 8). A
counter-nut shall be used for through holes or
enclosures that are less than 4 mm thick.
When mounting, a seal shall always be used
between the enclosure wall and intermediate
gland (see Fig. 7).
The following describes the mounting of the
cable in the trumpet-shaped gland, as shown
in Fig. 8:
1.
Cut out the individual rings of the
"onion ring" seal insert to match the
respective cable diameter.
2.
After feeding in the cable, that has
been cut to length and has the seal
mounted, into the intermediate gland,
screw the trumpet-shaped gland
tightly into the intermediate gland to
seal off the cable.
3.
Then mount the pull relief on the
trumpet-shaped gland.
It is necessary to ensure that there is
sufficient pull relief, that damage to the
cable is not possible and that the
trumpet-shaped gland cannot twist.
6.1.5 Reducing gland
A suitable tool, e.g. a fork, ring or box
spanner, shall be used for screwing the
reducing gland tightly into the threaded hole
in the enclosure.
A counter-nut shall be used for through holes
or enclosures that are less than 4 mm thick.
An additional seal shall be used for uneven
sealing surfaces.
Warning: Screwing several reducing
glands one inside the other to reduce the
size of the entry thread is not permitted.
6.1.6 Drain plug
A suitable tool, e.g. a fork, ring or box
spanner, shall be used for screwing the drain
plug tightly into the threaded hole in the
enclosure.
An additional seal shall be used for uneven
sealing surfaces.
The drain plug shall be mounted at the lowest
point of the apparatus or enclosure (see Fig. 9).
Cooper Crouse-Hinds GmbH
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