20
GB
Explosion-protected, light alloy Ex-d (e) control stations and
distributions, Series: GHG 64
1.2.1.3 Safety switch GHG 64 .. (400 A)
Rated voltage
690 V, 50/60 Hz
Rated current
400 A
Perm. short circuit back-up fuse
up to UN 400 V up to UN 500 V up to UN 690 V
500 A/gG
500 A/gG
–
Switching capacity AC 23
400 A
400 A
400 A
Cable entries (standard version)
according to customer specifications
under the approval
Terminals
M10 x 30
Test torque terminals
44 Nm
Weight
3-pole
acc. to specification
6-pole
acc. to specification
1.2.1.4 Auxiliary contacts
Rated voltage
690 V, 50/60 Hz
Rated current
20 A
Perm. short circuit back-up fuse
25 A/gL bei 690 V
Switching capacity AC 23
AC 15
230 V / 8,0 A
400 V / 6,0 A
DC 13
24 V / 6,0 A
230 V / 0,4A
Versions with gold-tipped contacts
max 400 mA
Terminals
2 x 1.5 - 4.0 mm²
Test torque terminals
2.5 Nm
1.2.1.5 Intrinsically safe switch circuits
Max. safe voltage U
m
690 V eff
Safe galvanic isolation from all other circuits
and earth
Dimension drawing
Enclosure Gr. 400 A
1
2
3
4
5
6
L1
IN
L2
L3
PE PE 11
13
PE
11
13
PE
11
13
12
14
12
14
L1
OUT
L2
L3
12
14
90°
0°
0
I
Wiring diagram
main and safety switch up to 400 A
430
430
357
405
365
1046,5
284
430