Cooper Crouse-Hinds GmbH
12
12
12
12
12
21
22
44
43
R1
34
33
11
12
44
43
R2
34
33
24
23
14
13
21
22
R3
11
12
41
42
31
32
44
43
R4
34
33
24
23
11
12
21
22
R5
11
12
31
32
44
43
S 1
S 2
S 4
S 3
S 2
S 4
S 3
S2
S3
S1
S4
S4
Actuator 2 x 2 pole
Actuator 1 x 4 pole
S 1
21
22
44
43
R1
34
33
11
12
44
43
R2
34
33
24
23
14
13
21
22
R3
11
12
41
42
31
32
44
43
R4
34
33
24
23
11
12
21
22
R5
11
12
31
32
44
43
S2 S3
S1
thrust washer
red
inserting sign
black
base
yellow
Mushroom-head pushbutton actuator
"EMERGENCY STOP"
GHG 410 1437R....
6
Installation
The relevant national regulations (e.g. Betr.Si.V,
the equipment safety law for Germany) and the
generally recognized rules of engineering apply
for the installation and operation.
The improper installation and
operation of control switches may result
in the invalidation of the guarantee.
6.1
Mounting
The control units GHG 411 can be mounted
without opening the enclosure.
When the control units are mounted directly
onto the wall, they shall rest evenly only on
the fastening points provided for this purpose.
The screw chosen shall fit the fixing hole (see
dimensional drawings, page 9) and shall not
damage the hole (e.g. use of a washer).
The apparatus shall be fixed diagonally with a
minimum of 2 screws.
If the screws are overtightened, the
apparatus may be damaged.
The control units GHG 411 and GHG 412 are
suited for mounting on CEAG apparatus
holders by means of self-cutting screws (see
pages 13 and 14).
See the respective mounting instructions.
The control units GHG 412 can be mounted in
the flange openings provided for this purpose
(see page 8).
Here special attention shall be paid to an even
sealing surface and the perfect condition of
the seal that is foamed into the enclosure
cover of the control unit.
The control unit is mounted in the flange
opening by means of fixing lugs that engage
behind the flange opening.
These are actuated by turning the 2 fixing
screws on the front of the enclosure cover
clockwise.
6.2
Opening 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 may
only be carried out by specialists.
The properly bared conductors of cables
shall be connected with due regard to the
respective regulations.
If multi- or fine-wire connection cables are
used, the wire ends shall be handled
according to the applicable national and
international regulations (e.g. use of multicore
cable ends).
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.
In the case of mixed Ex-e / Ex-i
installations, the required minimum
clearances shall be maintained (see, for
example, EN 60 079-11).
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.
The minimum and maximum conductor cross
sections that can be connected shall be
observed (see technical data).
All screws and/or nuts of connection
terminals, including those not in use, shall be
tightened down securely.
The standard terminals are designed for the
direct connection of conductors with copper
wires.
The circuit diagram of the built-in components
is shown on the components or attached to
them, or it is shown in the operating
instructions.
Explosion-protected control units GHG 411 / 412