Table des Matières
Publicité
Les langues disponibles
Les langues disponibles
Fig. 1
Warning labels "A +B"
Ausschaltfolge
Switching of sequence
Séquence de cupure
A
Achtung!
Betätigung des Verriegelungs-
schalters (1.), schaltet
Antrieb ab.
Attention!
When opening the interlocking
B
switch (1.), the drive is
switched off.
Attention!
Lors de l'ouverture de
l'interrupteur de verrouillage (1.),
l'appareil moteur est déconnecté.
Fig. 2
Fig. 3
Switch handle position
switching - "ON"
switching -"OFF"
Explosion-protected safety switches
for variable frequency drives, 20 A – 180 A
2
Safety instructions
The safety switches are not
a
suitable for Zone 0 and Zone 20
hazardous areas.
The temperature class and explosion group
marked on the apparatus shall be observed.
To ensure adherence to the temperature
class stated on the type label of the appara-
tus, the permissible ambient temperature,
the rated terminal cross section and the
self-heating of the apparatus, that is mainly
due to the power dissipation, shall be taken
into account (test criterion for the self-
heating is an overload of 10%).
Modifications or changes to the safety
switches are not permitted.
They shall be used for their intended
purpose and in a perfect and clean state.
The requirements of the IEC/EN 60079-31
regarding excessive dust deposits and
temperature to be considered from the user.
Only original CCH / CEAG parts may be used
as replacements and for repairs.
Repairs that affect the explosion protection
may only be carried out by CCH / CEAG or
by a qualified electrician in compliance with
the respective national regulations.
Prior to being put into operation, the
control units shall be checked in acc. with
the instructions as per section 6.
Before initial operation, any foreign matter
shall be removed from the apparatus.
Warning: The covers of the safety switches
can only be removed when the switch is in
the "ON" position.
The safety switches can be switched off only
after having „unlocked" the interlocking
switch.
Attention! When opening the interlocking
switch, the drive is switched off.
The national safety rules and regulations for
the prevention of accidents, as well as the
safety instructions included in these
operating instructions, that, like this text,
are set in italics, shall be observed!
3
Conformity with standards
They have been designed, manufactured and
tested according to the state of the art and to
DIN EN ISO 9001:2015 and
EN ISO/IEC 80079-34:2011.
The apparatus are conform to the standards
specified in the EC-Declaration of conformity,
enclosed separately.
4
Field of application
The safety switches are intended for use in
potentially explosive atmospheres in Zones 1
and 2 as well as in Zones 21 and 22 in
accordance with IEC/EN 60079-10-1 and
IEC/EN 60079-10-2.
The enclosure materials used, including any
external metal parts, are high quality materials
that ensure a corrosion resistance and
resistance to chemical substances according to
the requirements for use in a "normal industrial
atmosphere":
– glass-fibre reinforced polyester
– impact resistant polyamide
– special steel AISI 316 L.
When used in extremely aggressive atmos-
pheres, the additional data relating to the
chemical resistance of the plastics being used
shall be taken from the data sheet
GHG 902 4001 P0001.
5
Application / Properties
The safety switches for variable speed drives
are used for the safe, all-pole isolation of
electrical power when maintenance, cleaning
and repair work is carried out on systems,
machinery and drives operating on frequency-
controlled converter drives in hazardous areas.
See technical data for the temperature class,
explosion group and permissible ambient
temperature.
GB
19
Publicité
Table des Matières
