6
GB
Explosion-protected safety switch 10A,
GHG 261
1
Technical data
1.1 Safety switch GHG 261 ..
ATEX type examination certificate:
PTB00ATEX1074
Marking acc. to 2014/34/EU
D
II 2 G Ex de IIC T6
and standard: EN 60079-0
D
II 2 D Ex tD A21 IP66 T 80°C
IECEx type examination certificate:
IECEx BKI07.0014
Category of application: IEC 60079-0
Ex de IIC T6
Ex tD A21 IP66 T 80°C
Rated voltage:
500 V, 50/60 Hz
Rated current:
10 A
Perm. short circuit back-up fuse:
up to UN 400 V up to UN 500 V
20 A gL
16A gL
Switching capacity AC 3:
10 A
10A
Perm. ambient temperature:
(
Deviating temperatures possible with special versions.)
-55° C to +52° C (standard version)
Perm. storage temperature in original packing:
-55° C to +52° C
Degree of protection. to EN/IEC 60529:
IP 66 (standard version)
Insulation class acc. to EN/IEC 61140:
II - plastic terminal boxes fulfil this requirement
I - with metal flange
Cabel entry:
suitable cables and test torques of the
pressure screw
M20
M25
M32
Seal 1+2+3
(Ø mm / Nm)
1
2
3
min.
max.
(1)(2)
5.5 / 1.5
7.0 / 1.0
8.0 / 1.5
10.0 / 2.0
Seal 1+2
(Ø mm / Nm)
1
2
3
min.
max.
(1)(2)
7.0 / 1.5
9.0 / 1.4
10.0 / 2.3
13.0 / 2.6
14.0 / 3.0
17.0 / 4.0
Seal 1
(Ø mm / Nm)
1
2
3
min.
max.
(2)
9.5 / 1.0
13.0 / 1.7
13.5 / 1.3
17.5 / 2.3
17.5 / 1.5
21.0 / 1.3
Test torque for screw in thread cable entry:
2.7
3.0
5.0
Terminals:
2 x 1.5 - 2.5 mm²
Cover screws:
2.50 Nm
Terminals main contacts:
2.00 Nm
Terminals auxiliary contact:
2.00 Nm
(1)
The tests of clamping ranges and torque values were performed with metal mandrel. The clamping range can
vary by using cables with different manufacturing tolerances and material properties. Please use the combina-
tion of sealing 1 + 2 + 3 for the intermediate region.
(2)
When selecting the seal rubber, ensure that the cap nut can be tightened when carrying out any future
maintenance work on the cable entry.
1.2 Auxiliary contact:
Rated voltage:
500 V, 50/60 Hz
Rated current:
10 A
Perm. short circuit back-up fuse:
16 A gL up to 500 V
Switching capacity:
AC 15
230V / 6.0 A
400 V / 6.0 A
DC 13
24V / 6.0 A
230 V / 0.4 A
Design with gold-tipped contact:
max. 400 mA
Terminals:
2 x 0.5 - 2.5 mm²
2
Safety instructions
a
The operations must be carried
out by electrical suitably trained in
hazardous area with knowledge of
increased safety explosion protection
IEC/EN 60079-14.
The safety switches GHG 261 are not suited
for use in Zone 0 and Zone 20.
The temperature class and type of protec-
tion stated on the apparatus shall be
observed.
The requirements of the IEC/EN 60079-31
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%).
They shall be used for their intended
purpose and shall be in a perfect and clean
state.
Prior to being put into operation, the
control units shall be checked in accordance
with the instructions as per section 6.
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
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.
Dimensions in mm
GHG 261 ..
X = Fixing dimensions
