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Dimensions in mm
X = fixing dimensions
GHG 261 ..
2 Safety instructions
The safety switches GHG 261
are not suited for use in Zone 0
and Zone 20.
The temperature class and type of
protection stated on the apparatus shall
be observed.
The requirements of the EN 61241-0 and -1
regarding excessive dust deposits and
temperature to be considered from the
user.
To ensure adherence to the temperature
class stated on the type label of the
apparatus, 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 shall be in a perfect and
clean state.
Only original COOPER Crouse-Hinds
parts may be used as replacements and
for repairs.
Repairs that affect the explosion
protection may only be carried out by
COOPER Crouse-Hinds or by a qualified
6 6 6 6 6
Cooper Crouse-Hinds GmbH
1
Technical data
1.1
Safety switch GHG 261 ..
Marking acc. to 94/9/EC:
EC type examination certificate:
Rated voltage:
Rated current:
Perm. short circuit back-up fuse:
Switching capacity AC 3:
Perm.ambient temperature:
Deviating temperatures possible with special versions.
Perm.storage temperature in original packing:
Degree of protection. to EN/IEC 60529:
Insulation class acc. to EN/IEC 61140:
Cable entries (standard version):
M20 Ø 5-13mm / M25 Ø 8-17mm
Terminals:
Test torques:
Cap nut of the plastic cable entry
for min. cable Ø in Nm
for max. cable Ø in Nm
Cover screws
Terminals main contacts
Terminals auxiliary contact
1.2
Auxiliary contact:
Rated voltage:
Rated current:
Perm. short circuit back-up fuse: 16 A gL up to U
Switching capacity:
Design with gold-tipped contact:
Terminals:
electrician in compliance with the
respective national regulations.
Prior to being put into operation, the
control units shall be checked in
accordance 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 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
The apparat is conform to the standards
specified in the EC-Declaration of conformity.
It has been designed, manufactured and
tested according to the state of the art and to
DIN EN ISO 9001.
94/9 EC: Equipment and protective systems
intendet for use in potentially explosive
atmospheres.
The apparats fulfil further requirements, such
as the EC directive on electromagnetic
compatibility (2004/108/EEC)
II 2 G Ex d e IIC T6
II 2 D Ex tD A21 IP66 T 80°C
PTB 00 ATEX 1074
500 V, 50/60 Hz
10 A
up to U
400 V
up to U
N
20 A gL
16 A gL
10 A
10 A
-20° C up to +40° C (standard version)
-50 °C to +80 °C
IP 66 (standard version)
I - plastic terminal boxes fulfil this requirement
II - with metal flange
3-pole version
6-pole version
1 x M20 + 2 x M25
2 x 1.5 - 2.5 mm²
M20
M25
3.50
5.00
2.50
3.50
2.5 Nm
2.0 Nm
2.0 Nm
500 V, 50/60 Hz
10 A
500 V
N
AC 15
230V / 6.0 A
DC 13
24V / 2.0 A
max 400 mA
2 x 0.5 - 2.5 mm²
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"
- impact resistant polyamide
- special steel AISI 316 L.
In case of use in an extremely aggresive
atmosphere, please refer to manufacturer.
4
Field of application
The safety switches GHG 261 are intended
for use in potentially explosive atmospheres
in Zones 1 and 2 as well as in Zones 21 and
22 in accordance with EN 60079-10.
5
Application / Properties
The safety switches are designed for the safe
isolation of the electrical energy at all poles
while maintenance, cleaning and repair work
is being carried out on equipment, machinery
and drives in potentially explosive
atmospheres. See technical data, page 6, for
the temperature class, explosion group and
permissible ambient temperature.
Due to the AC 3 motor switching capacity of
the safety switches, reliable isolation
(switching) is also possible during operation.
In addition to this, the safety switches are so
designed, that they also switch off the drive,
e.g. via the contactor that precedes the
500 V
N
-
M32
8.00
5.00
400 V / 4.0 A
230V / 0.5 A
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