
9
GB
Explosion-protected plugs and sockets, 7-pole
GHG 511 .7.. / 592 and 21-pole GHG 511 .9.. / 591
1.2 Plugs and sockets, 21-pole
EC Type Examination Certificate:
Wall socket, coupler, plug
PTB 00 ATEX 1109
Flange socket
PTB 00 ATEX 1108 U
Marking acc. to 2014/34/EU
II 2 G Ex e IIC T5 / T6
and standard of series EN 60079:
II 2 G Ex e [ia] IIC T5 / T6
Rated voltage
up to 250 V, 50/60 Hz (max. up to 400 Hz)
Max. rated current
10 A
Perm. short-circuit back-up fuse
without therm. protect. with therm. protect.
max. 16 A
max. 25 A gG
Permissible ambient temperature
-20° C up to +40° C (standard version)
(Other temperatures possible with special versions.)
Perm.storage temperature in original packing
-20° C up to +40° C
Degree of protection to IEC/EN 60529
IP 65 (standard version)
with closed and secured hinged cover as well as combinations properly plugged together
Insulation class acc. to IEC/EN 61140
I – with metal flange or metal cable entries
II - is complied with by devices
Cable entries
(standard version)
Wall socket 1 x M40
suitable cables and test torques of the
pressure screw
Ø
Nm
Seal 1+2
1
2
3
min.
max.
(1)
19.0
22.0
3.3
5.5
Seal 1
1
2
3
min.
max.
(1)
22.0
28.0
3.3
6.7
Test torque for screw in thread cable entry
7.5 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 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.
Plug
Ø 19 - 28 mm
Coupler
Ø 9 - 27 mm
Supply terminal
Cross section
Stripped wire length
Contact pin for sockets and coupler
1 x 1.0 - 2.5 mm² *
13 mm
Pin for plug
1 x 1.0 - 2.5 mm² *
13 mm
* crimp or soldered connections
Test torques
Cover and plug screws
2.5 Nm
Weight (standard version)
(standard version)
Wall socket
GHG 511 47
approx. 1.79 kg
Plug
GHG 591 2
approx. 0.70 kg
Flange socket
GHG 591 4
approx. 0.43 kg
Coupler
GHG 591 3
approx. 0.77 kg
1.3 Intrinsically safe switch circuits
Max. safe voltage U
m
690 V eff
Safe galvanic isolation from all other circuits
and earth
Dimensions in mm
X = fixing dimensions
Wall socket 21pole
Plug 21pole
Coupler 21pole
Flange socket 21pole
Code 21pole
6h 5h 7h
maize yel.
brown
orange
Summary of Contents for Crouse-Hinds GHG 511 47
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