Conductor Cross-Sections For Ring Cable Lug Connection System - Siemens SIRIUS 3RT Manual

Connection
8.2 Conductor cross-sections
8.2.3

Conductor cross-sections for ring cable lug connection system

Conductor cross-sections for ring cable lug connection system
The tables below define the permissible conductor cross-sections for main terminals and
auxiliary conductor connections in sizes S00 and S0 for ring cable lug connection systems.
Table 8- 21 Main conductors and auxiliary conductors of size S00 with M3 combination screws
Tool
Tightening torque
Ring cable lug
1)
Table 8- 22 Main conductors and auxiliary conductors of size S0 with M4 combination screws
Tool
Tightening torque
Ring cable lug
1)
240
SIRIUS devices
Pozidriv size 2,
Ø 5 to 6 mm
0.8 to 1.2 Nm
d = min. 3.2 mm
2
d = max. 7.5 mm
3
SIRIUS devices
Pozidriv size 2,
Ø 5 to 6 mm
2.0 to 2.5 Nm
d = min. 4.3 mm
2
d = max. 12.2 mm
3
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006