Table 21:
Terminal cross sections and earth connection tightening torques
Tightening torques
Terminal cross sections
Conductor type
3 – 4 Nm
2.5 mm² to 6 mm²
Solid wire and stranded
3 – 4 Nm
1.5 mm² to 4 mm²
Fine stranded
For fine stranded (flexible) wires, connection is made via cable lugs/ring terminals. When connecting
two individual wires with a U-bracket, cross sections have to be identical.
6.7.
Accessories for electrical connection
6.7.1.
Actuator controls on wall bracket
Design principle
Figure 41: Design principle with wall bracket (example)
[1]
Wall bracket
[2a]
Motor connection/motor control
[2b]
Feedback signals from actuator
[3]
Electrical connection of wall bracket
[4]
Electrical connection of actuator (XA)
[5]
Electrical connection of actuator controls (XK)
Application
The wall bracket allows separate mounting of actuator controls and actuator.
●
If the actuator cannot be accessed safely.
●
If the actuator is subjected to high temperatures.
●
In case of heavy vibration of the valve.
Information on installa-
tion with wall bracket
●
The permissible cable length between separate local controls and the actuator
amounts to 16 m maximum.
Longer cables require an external filter (available on request)
●
We recommend using an AUMA “LSW” cable set.
43
SAVEx 07.2 – SAVEx16.2/SARVEx 07.2 – SARVEx16.2 Control unit: electronic (MWG)
ACVExC 01.2 Non-Intrusive
Electrical connection
