2-25
D Round Solderless Terminals and Tightening Torque
Wire thickness
(mm
2
)
Terminal
screw
Size Tightening
torque (NSm)
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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