Electrical Connection - Cooper Crouse-Hinds CEAG GHG 745 22 Mode D'emploi

Fig. 2 Wall mounting bracket
Screw M6 x 16 Wall mounting
Lock washer bracket
Fig. 3 Mounting the wall
mounting bracket
Mounting at right side
Mounting at bottom
Fig. 4 Apparatus holder size 3 for pipe
Fastening holes
for plastic
terminal boxes
GHG 744
Fig. 5 Apparatus holder size 3 for channel
Fastening holes
for plastic
terminal boxes
GHG 744
10 10
10 10 10
Cooper Crouse-Hinds GmbH
Explosion protected terminal boxes made of plastic or
stainless steel type GHG 74.
If the screws are overtightened, the f the screws are overtightened, the f the screws are overtightened, the f the screws are overtightened, the f the screws are overtightened, the
plastic terminal boxes may be damaged. plastic terminal boxes may be damaged. plastic terminal boxes may be damaged.
plastic terminal boxes may be damaged. plastic terminal boxes may be damaged.
The plastic terminal boxes GHG 744, 745,
746 and GHG 749 are suitable for fastening
onto COOPER CROUSE-HINDS / CEAG
apparatus holders by means of self-cutting
screws (see fig. 4-7 and page 11 fig.8).
The respective mounting instructions will have
to be observed.
Mounting the wall mounting brackets onto the
stainless steel terminal boxes GHG 744,
GHG 745, GHG 746 and GHG 749 is done as
per fig. 2 and 3.
Observe the min. No. of wall mounting
brackets!
6.2 Opening the apparatus/

Electrical connection

Before opening the apparatus, it is
necessary to ensure that there is no
voltage or to take suitable protective
measures.
The electrical connection of the apparatus
may only be carried out by skilled staff.
Fig. 6
mounting,
Apparatus holder size 3 for pipe mounting,
vertically
C
Fastening holes for plastic terminal
Fig. 7
and wall Apparatus holder size 3 for channel and
mounting,
wall mounting, horizontally
vertically
B
Fastening holes for plastic terminal
horizontally
C
boxes GHG 744
E
boxes GHG 744
The table indicating the current load
values which is provided on the cover
inside of the terminal boxes and in this
operating instruction is to be observed.
The insulation of the conductors shall
reach up to the terminal. The conductor
itself shall not be damaged.
The properly bared conductors of the cables
shall be connected, taking into account the
respective regulations.
The connectible min. and max. conductor
cross-sections will have to be observed.
All screws and/or nuts of the supply
terminals, and unused terminals, shall be
tightened down.
The fitted standard terminals are designed
for direct connection of conductors with
copper cores.
The conductors shall be connected with
special care in order to maintain the
explosion category.
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 international rules
(e. g. use of ferrules).
If stud terminals are fitted, DIN cable lugs
shall be used.
In the case of building up the electrical
equipment in the "protective insulation"
version, appropriate sticker
( ) GHG 905 1002 P0005 can be
requested by the manufacturer.
If the inserted terminal rail is not equipped
completely with line-up terminals, the terminal
rail must be included in the equipotential
earth connection also.
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).
If up to 240mm² (bolt type) terminals are
mounted in the terminal/junction box, they
shall be connected as shown (max 2 x
240mm²) in fig. 1, page 9.
In case of mixed equipment Ex e / Ex-i, the
required minimum distances will have to be
kept (see e.g. EN 60079-11).
When apparatus is open, it is necessary to
ensure (disconnect voltage supply) that no
voltage is carried over into the connected
intrinsically safe circuits.
The installation instructions for intrinsically
safe electrical apparatus shall be observed. It
is necessary to ensure that the permissible
external capacitance and inductance of the
special intrinsically safe circuits are not
exceeded.