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Verfügbare Sprachen
Verfügbare Sprachen
Contact arrangements
control switchEx 23
Swich mechanism
4
5
6
7
14
14
14
14
14
Cooper Crouse-Hinds GmbH
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Explosion-protected control units GHG 43.
6.2
Opening apparatus/
Circuitry
Electrical connection
Code
Before opening the apparatus, it is
6011
necessary to ensure that there is no voltage
or to take suitable protective measures.
6019
The electrical connection of the may only
be carried out by specialists.
6060
The properly bared conductors of cables shall
be connected with due regard to the
respective regulations.
6062
To maintain the explosion protection,
conductors shall be connected with special
care.
6065
The insulation shall reach up to the
terminal. The conductor itself shall not be
6033
damaged.
In the case of mixed Ex-e / Ex-i
6170
installations, the required minimum
clearances shall be maintained (see, for
example, EN 60 079-11).
. 021
When apparatus is open, it is necessary to
ensure (disconnect voltage supply) that no
voltage is carried over into the connected
. 023
intrinsically safe circuits.
The minimum and maximum conductor cross
sections that can be connected shall be
. 024
observed (see technical data).
All screws and/or nuts of connection
terminals, including those not in use, shall be
. 061
tightened down securely.
The standard terminals are designed for the
direct connection of conductors with copper
. 063
wires.
The circuit diagram of the built-in components
is shown on the components or attached to
. 066
them, or it is shown in the operating
instructions.
If, to facilitate wiring, the built-in components
. 067
(AM 72 and AM 45 measuring instruments,
pushbutton contact block, signal lamp bases,
control switch contact blocks, potentiometer
. 037
bases, etc.) are snapped off the rail on the
bottom of the enclosure, the components
shall be snapped back properly into the
same notch on the rail.
. 049
To snap off components (including the
measuring instruments AM 72 and AM 45),
pull the hooks outwards to release them.
. 191
Spec. switch
mechanism
8
9
Switching at the switch shaft of the
switch contact block Ex 23 when the
enclosure is open is not permitted. (to
ensure that the switch can be closed
again correctly).
Warning: the engaging positions of the
built-in components shall matches the
notches on the rail!
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.
In the case of building up the electrical
equipment in the "protective insulation"
version, appropriate sticker (
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.
6.3
6.3
6.3
Cable entries (KLE);
Cable entries (KLE);
Cable entries (KLE);
6.3
6.3
Cable entries (KLE);
Cable entries (KLE);
blanking plugs
blanking plugs
blanking plugs
blanking plugs
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.
When using cable entries with a degree of
protection that is lower than the IP protection
of the apparatus (see page 9), the degree of IP
protection for the complete unit is reduced.
The relevant mounting directives for cables
entries being used shall be observed.
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
sealed with certified blanking plugs.
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 are cut out, it is necessary to
ensure that the insert is properly adapted to
the cable diameter.
) GHG 905
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