Delta M50A 260, Руководство по эксплуатации и установке

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Prior to installing conductors on terminal complete the following procedure to
make terminals ready for connections.
For each of the AC terminals (L1, L2, L3, N):
Tighten or Lose nuts with 8 mm (M70A_260) / 5mm (M50A_260) hex wrench.
If an electric tool is used, insure the torque setting is low enough to NOT over-
torque the screw.
Sizes of Cables (mm)
D1
M70A
D2
D3
D4
D5
51-57
43-50
36-43
30-36
26-30 2550 mm
2
1962 mm 2
1450 mm 2
1017 mm 2
706 mm 2
8.5
8.5
8
8.5
8.5
7
5
5
5
5
Torque (N
•
m) Dimension of P (mm)
3.4.4 AC Side –Prewire Set-Up
Extreme temperature rise at the clamping point
If the contact resistance between the aluminum conductor and clamping point is too
high, the clamping point can become very hot and even catch fire in extreme cases.
To ensure a safe and reliable contact,
always perform the following work steps:
Please select the Al wire size according to rules due to lower conductivity of Al.
Keep the installation location as free as possible from moisture or corrosive
atmospheres.
Connect the aluminum cables quickly.
Tighten the clamping screw in the clamping body with the maximum permissible
tightening torque.
NOTICE
Sizes of Cables (mm)
D1
M50A
D2
D3
30.8-44.7
26.8-35.4
21.9-27.6 1570 mm 2
984 mm 2
598 mm 2
13
15
13 2
2
2
Torque (N
•
m) Dimension of P (mm)
Table 3-1: Cable size comparison table
31
Installation