2-25
D
Round Solderless Terminals and Tightening Torque
Wire thickness
(mm
2
)
Terminal
screw
Size
Tightening
torque (N
S
m)
0.5
M3.5
1.25 – 3.5
0.8
M4
1.25 – 4
1.2
0.75
M3.5
1.25 – 3.5
0.8
M4
1.25 – 4
1.2
1.25
M3.5
1.25 – 3.5
0.8
M4
1.25 – 4
1.2
2
M3.5
2 – 3.5
0.8
M4
2 – 4
1.2
M5
2 – 5
2.0
M6
2 – 6
2.5
M8
2 – 8
6.0
3.5/5.5
M4
5.5 – 4
1.2
M5
5.5 – 5
2.0
M6
5.5 – 6
2.5
M8
5.5 – 8
6.0
8
M5
8 – 5
2.0
M6
8 – 6
2.5
M8
8 – 8
6.0
14
M6
14 – 6
2.5
M8
14 – 8
6.0
22
M6
22 – 6
2.5
M8
22 – 8
6.0
30/38
M8
38 – 8
6.0
50/60
M8
60 – 8
6.0
M10
60 – 10
10.0
80
M10
80 – 10
10.0
100
100 – 10
10.0
100
M12
100 – 12
14.0
150
150 – 12
14.0
200
200 – 12
14.0
325
M12
×
2
325 – 12
14.0
M16
325 – 16
25.0
Note Determining Wire Size
Determine the wire size for the main circuit so that line voltage drop is within 2% of the rated volt-
age.
Line voltage drop is calculated as follows:
Line voltage drop
(V)
+
3
Ǹ
x wire resistance (
Ω
/km) x wire length (m) x current (A) x 10
–3
Installation
Chapter 2
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