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14
Explosion-protected safety switches
for variable frequency drives, 20 A – 180 A
1
Technical data
1.1
Technical data
Perm.ambient temperature:
Other temperatures possible with special versions.
Perm.storage temperature in original packing:
Degree of protection. to IEC/EN 60529:
Insulation class acc. to IEC/EN 60598:
Test torques:
Cover screws
1.2
Safety switch GHG 262 .. (20 A)
EC type examination certificate:
Marking acc. to 2014/34/EU and standard:
EN 60079-0
IECEx certificate:
Category of application:
IEC60079-0
Rated voltage:
Rated current:
Perm. short circuit back-up fuse:
Switching capacity AC 3:
Switching capacity DC 1 / DC 23:
Switching capacity DC 13 (L/R =100 ms, 6 S/min)
Cable entries (standard version):
Suitable cables and test torques of the pressure screw
Cabel entry:
Seal 1+2+3
1 2
3
(Ø mm / Nm)
Seal 1+2
1 2
3
(Ø mm / Nm)
Seal 1
1 2
3
(Ø mm / Nm)
Test torque for screw in thread cable entry (Nm) 3.0
(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
combination 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 mainte-
nance work on the cable entry.
Terminals:
Min. wire cross section / supply terminal:
Test torque terminals:
Weight (standard version):
-20° C up to +40° C (standard version)
-20° C to +40° C
IP 66 (standard version)
IP 54 (with double cable end piece)
I - with metal flange
II - safety switches fulfil this requirement
2,5 Nm
PTB 99 ATEX 1161
II 2 G Ex d e ia IIC T6
II 2 D Ex tD A21 T80 °C
IECEx BKI 07 .0012
Ex de ia IIC T6
Ex tD A21 T55 °C
690 V, 50/60 Hz
20 A
up to U
400V
up to U
N
35 A/gG
35 A/gG
20 A
16 A
U
120 V
60 V
e
I
20 A
20 A
e
2 contacts in
1 contact
series
60 V
6 A
2 x M32 + 2 x M25
M25
min.
8.0 / 1.5
(1)(2)
max.
10.0 / 2.0
min.
10.0 / 2.3
(1)(2)
max.
13.0 / 2.6
min.
13.5 / 1.3
(2)
max.
17 .5 / 2.3
2 x 1.5 - 4.0 mm²
1 x 2.5 mm² for 20 A rated current (T6)
2.5 Nm
approx. 2.80 kg
GB
500V
up to U
690V
N
N
25 A/gG
10 A
M32
14.0 / 3.0
17.0 / 4.0
17.5 / 1.5
21.0 / 1.3
5.0
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