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Verfügbare Sprachen
Dimensions in mm
85
X75
5.6
53
85
X75
5.6
35
GHG 273
X = Fixing dimensions
Wiring diagrams
On-Off switch 2-pole
L
Change over switch
1S+1Ö
L
Push button switch
1S+1Ö
L
The switch function is only realized
with closed enclosure cover
6
Explosions protected installation switches
type GHG 273
1
Technical data
EC-Type Examination Certificate:
64
Marking acc. to 2014/34/EU
55
and standard EN 60079-0:
IECEx Certificate of Conformity:
Marking acc. IEC 60079-0:
6.7
Rated voltage:
Rated current:
Short circuit back-up fuse:
Switching capacity EN 60947-4-1 AC 5a:
Switching capacity EN 60947-4-2 AC 5b:
20
Perm. ambient temperature:
(Special versions permit deviating temperature ranges)
Perm. storage temperature in original packing:
64
Protection category acc. to EN/IEC 60529:
55
Insulation class
Cable entry (catalogue version):
suitable cables and test torques of the
6.7
pressure screw
Seal 1+2+3
Seal 1+2
20
Seal 1
Supply terminal:
PE-terminal:
Test torques:
Test torque for screw in thread cable entry
Cover screws
Terminals
Weight (catalogue version):
(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 a suitable
combination of seals in the intermediate area, so that the cap nut can be tightened in future maintenance
work on the cable entry.
2
Safety instructions
Target group:
For skilled electricians and suitable
qualified, instructed personnel in
accordance with national legislation,
including the relevant standards and, where
applicable, in acc. with IEC/EN 60079-14 on
electrical apparatus for explosive atmospheres.
L( N )
The installation switches are not suitable for
Zone 0 and Zone 20 hazardous areas.
The temperature class and explosion group
marked on the installation switches shall be
observed.
They shall be used for their intended
purpose and in perfect and clean condition.
The requirements of the IEC/EN 60079-31
regarding excessive dust deposits and
temperature to be considered from the user.
L( N )
Prior to taking the installation switches
into operation, they shall be checked in
accordance with the instruction as per
section 6.
Observe the national safety rules and
regulations for prevention of accidents as
well as the safety instructions included in
these operating instructions and set in
italics the same as this text!
acc. to EN/IEC 61140:
min.
1 2
3
(1)
max.
min.
1 2
3
(1)
max.
min.
1 2
3
(1)
max.
PTB 98 ATEX 3121
D II 2 G Ex de IIC T6
D II 2 D Ex tD A21 IP66 T 80° C
IECEx BKI 07 .0036
Ex de IIC T6
Ex tD A21 IP66 T 67° C
up to 250 V; 50/60 Hz
max. 16 A
max. 20 A gG
230 V / 16 A
230 V / 16 A
-20° C up to +40° C (catalogue version)
-20° C up to +40° C
IP 66 ( catalogue version)
I - is complied with by the installation switches
1 x M25 or 2 x M25
2 x drilling M20
Ø
Nm
8.0
1.5
10.0
2.0
10.0
2.3
13.0
2.6
13.5
1.3
17 .5
2.3
2 x 1.5 - 2.5 mm²
4 x 1.5 - 2.5 mm²
3.0 Nm
2.0 Nm
2.5 Nm
approx. 0.32 kg
3
Conformity with standards
The apparatus are conform to the standards
specified in the EC-Declaration of conformity,
enclosed separately.
References to standards and directives in these
operating instructions always relate to the latest
version. Other additions (e.g. details relating to
the year) shall be observed.
4
Field of application
The installation switches are suitable for use in
Zones 1 and 2 as well as in Zones 21 and 22
hazardous areas acc. to IEC/EN 60079-10-1 and
IEC/EN 60079-10-2!
The enclosure materials employed, including
the exterior metal parts, are made of high-
quality materials which ensure a corrosion
protection and resistance to chemical
substances corresponding to the requirements
in a "normal industrial atmosphere":
– impact resistant polyamide
– special steel AISI 316 L
In case of use in an extremely aggressive
atmosphere, please refer to manufacturer.
GB
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