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Supplementary installation, operating and maintenance instructions English
Explosion-proof three-phase asynchronous motors with squirrel-cage rotor for high voltage
815001 Edition 09.2020
8
M4
1.0
0.7
1.4
1.0
3.0
2.6
3.3
2.8
M5
2.0
1.4
2.7
1.9
5.9
5.0
6.7
5.7
M6
3.5
2.5
4.6
3.2
10
8.5
11.5
9.8
M8
8.4
5.9
11
7.7
25
21.3
27
23.0
M10
13.2
9.2
17.1
12.0
38.1
32.4
54
45.9
M12
22.6
15.8
30.3
21.2
66.1
56.2
92
78.2
M14
–––
–––
48.2
33.7
105
89.3
145
123.3
M16
55.2
38.6
73.9
51.7
163
138.6
225
191.3
M18
–––
–––
101
70.7
233
198.0
320
272
M20
107
74.9
143
100.1
331
281.4
460
391
M22
-
-
194
136
451
383
620
527
M24
183
128
245
172
568
483
790
672
M27
-
-
366
256
856
728
1160
986
M30
369
258
494
346
1130
961
1550
1320
M33
502
385
673
471
1560
1330
-
-
M36
840
588
1120
784
2 020
1720
-
-
M39
-
-
1380
966
2 640
2 240
-
-
M42
-
-
1370
959
3 230
2 750
-
-
M45
-
-
1700
1190
3 990
3 390
-
-
M48
-
-
2 050
1440
4 860
4 130
-
-
M52
-
-
2 630
1840
6 200
5 270
-
-
M56
-
-
3 280
2 300
7 750
6 590
-
-
M64
-
-
4 890
3 420
11600
9860
-
-
M68
-
-
5 890
4 120
13800
11700
-
-
Tightening torques of screw connections
When inserting the supply cables into the terminal box, make sure that the cables have strain relief. The in-
side of the terminal boxes must be kept clean. The seals must be undamaged and correctly seated. The ter-
minal box must always be closed during operation.
High-voltage terminal boxes have a pressure relief flap with predetermined breaking point (at the bottom of
the terminal box). The flap and seal must not be damaged during connection. The protection class must be
ensured. In case of damage, the seal can only be restored with the original sealing material.
The connection terminals for additional devices and monitoring equipment are located in the auxiliary termi-
nal box.
ATTENTION!
Observe the following minimum values for distances between bare live components and to
ground:
Nominal voltage U
N
[kV]
3
3.3
6
6.6
Minimum distance
[mm]
36
36
60
60
The cable lugs, nuts and locknuts must be arranged according to the illustrations under
section 20 Terminal box assembly.
Rated voltage
Bolt
Bolt mate-
rial
Rated cur-
rent
Protection
class
Terminal
Cable lug
Connection
cross-sec-
tion
[A]
[mm2]
max. 6 kV
M12
MS
250
IP 55
DIN46264-6-M12-Ms
DIN46234
min. 70 mm
2
max. 240
mm
2
M16
MS
315
DIN46264-6-M16-Ms
M16
Bz
400