Figure 17: Earth connection
Application
External earth connection (U-bracket) for connection to equipotential compensation.
Table 8:
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
3 – 4 Nm
1.5 mm² to 4 mm²
flexible
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.
21
PF-M25 – PF-M100
Parallel
Electrical connection
