6.4.
External earth connection
Figure 15: Earth connection at MEC 03.1 and actuator
Application
External earth connection (U-bracket) for connection to equipotential compensation.
Hazardous voltage due to insulating impact of powder coating!
Risk of electric shock.
→
Free (file off) the surface below the U-bracket of MEC actuator controls from
powder.
→
Connect all protective earth conductors.
→
Connect PE connection to external protective earth conductor of connection
cable.
→
Power the device only once the protective earth conductor has been connected.
Table 4:
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.
17
SG 04.2 – SG 10.2
with actuator controls MEC 03.1
Electrical connection
