Delta M70A 263, Operation And Installation Manual

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<10
cm
<0°
<10
cm
Prior to install conductors on the terminal, please complete the following procedure
to make terminals ready for connections.
For each of the AC terminals (L1, L2, L3, N):
Tighten / Lose nuts with 8 mm hex wrench. If an electric tool is used, insure the
torque setting is low enough to NOT OVER-TORQUE the nuts.
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
ATTENTION
or
-
A “hump” pipe routing is recommended which can prevent flowing water
on the connector.
<0°
D1 D2 D3 M40
P
D1
AC
D2
D3
21.7-28.9 mm
16.2-21.7 mm
Cable diameter range
12.0-16.2 mm
Torque
5.5-10
N
•
m
6.0
N
•
m
4.0-6.5
N
•
m
Dimension of P
1.0-8.0 mm
1.0-6.5 mm
1.0-7.5 mm
31
Installation