Power Electronics SD750 Series - Power Connection; Power Connection Caution; General Connection Recommendations

POWER ELECTRONICS
SD750
POWER CONNECTION
35
EN
POWER CONNECTION
CAUTION
Please read the following instructions for proper electrical installation.
Otherwise, it could result in damage to equipment and personnel.
General recommendations for connections
The following table summarizes the recommended torque for both mechanical and electrical
connections:
SCREW SIZE
RECOMMENDED TORQUE
Metric (mm)
English (inches)
DIN (Nm)
ASTM (ft*lb)
6,9 Quality
[a]
8,8 Quality
[a]
A449 Type 1
[a]
A325 Type 1
[a]
M3
1/8
1
1,3
-
-
M4
5/32
2,5
3
M5
3/16
4
6
M6
1/4
5
10
4
M8
5/16
20
25
9
M10
7/16
40
50
25
M12
1/2
60
70
38
50 – 58
M14
9/16
100
120
54
-
M16
5/8
150
210
75
99 – 120
[a] For other qualities, follow the screw’s manufacturer guidelines.
NOTES:
• Power Electronics recommends the use of zinc coated quality 8.8 steel bolts for internal-indoor
connections in general, including ground and DC power connections.
• Power Electronics recommends the use of A2-70 stainless steel bolts for external-outdoor
connections in general, including AC power connections.
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