Actuator 1 x 4 pole
S 2
S 4
S 3
S 1
S1
S2 S3
S4
12
22
34
44
R1
11
21
33
43
14
24
34
44
R2
13
23
33
43
12
22
32
42
R3
11
21
31
41
12
24
34
44
R4
11
23
33
43
12
22
32
44
R5
11
21
31
43
Actuator 2 x 2 pole
S 2
S 4
S 3
S 1
S1
S2
S3
12
22
34
R1
11
21
33
14
24
34
R2
13
23
33
12
22
32
R3
11
21
31
12
24
34
R4
11
23
33
12
22
32
R5
11
21
31
Mushroom-head pushbutton actuator
"EMERGENCY STOP" GHG 410 1437R....
thrust washer
red
base
yellow
14
Explosion-protected control units
GHG 411 and 412
The 4 pole pushbutton contact can be added
with the standard CCH actuators.
If the 4 pole pushbutton contact is added with
an Emergency STOP Mushroom-head
pushbutton actuator, then you have to use the
actuators with CCH order number
GHG 410 1437R.
This actuators can be recognized by the red
thrust washer and black inserting sign.
a
The data according to sections 3 and 4
shall be taken into account during use.
a
Applications other than those described
are not permissible without a written
declaration of consent from Messrs.
COOPER Crouse-Hinds.
a
During operation the instructions stated
in section 7 of the operating instructions
shall be observed.
a
The sole responsibility with respect to
the suitability and proper use of the control
switches with regard to the basic require-
ments of these instructions (see technical
data) lies with the operator.
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
IEC/EN 60079-14.
a
The improper installation and operation
of control switches may result in the
invalidation of the guarantee.
S4
44
6.1
Mounting
The control units GHG 411 can be mounted
43
without opening the enclosure.
44
When the control units are mounted directly
onto the wall, they shall rest evenly only on the
43
fastening points provided for this purpose.
42
The screw chosen shall fit the fixing hole (see
41
dimensional drawings, page 10) and shall not
damage the hole (e.g. use of a washer).
44
The apparatus shall be fixed diagonally with a
43
minimum of 2 screws.
44
a
If the screws are overtightened, the
apparatus may be damaged.
43
The control units GHG 411 and GHG 412 are
suited for mounting on CEAG apparatus holders
by means of self-cutting screws (see pages 16).
See the respective mounting instructions.
inserting sign
black
The control units GHG 412 can be mounted in
the flange openings provided for this purpose
(see page 10).
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
a
Before opening the apparatus, it is
necessary to ensure that there is no voltage
or to take suitable protective measures.
a
The electrical connection of the may only
be carried out by specialists.
(IEC/EN 60079-14)
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).
a
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.
a
In the case of mixed Ex-e / Ex-i installa-
tions, the required minimum clearances
shall be maintained (see, for example,
IEC/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.
The minimum and maximum conductor cross
sections that can be connected shall be
observed (see technical data).
E