Conductor Cross-Sections For Screw-Type Connection Systems - Siemens SIRIUS 3RT Series System Manual

System overview
1.9 Connection
1.9.2.1

Conductor cross-sections for screw-type connection systems

Conductor cross-sections for screw-type connection systems
The tables below define the permissible conductor cross-sections for main terminals and
auxiliary conductor connections in sizes S00 and S0 for screw-type connection systems.
Table 1- 26 Main conductors of size S00 with M3 combination screws
Tool
Tightening torque
Solid and stranded
Finely stranded with
end sleeve
DIN 46228 Part 1
AWG
Only 1 conductor can be clamped on the stand-alone assembly support.
1)
Table 1- 27 Main conductors of size S0 with M4 combination screws
Tool
Tightening torque
Solid and stranded
Finely stranded with
end sleeve
DIN 46228 Part 1
AWG
Only 1 conductor can be clamped on the stand-alone assembly support.
1)
80
Motor starter protectors Contactors
Pozidriv size PZ 2, Ø 5 to 6 mm
0.8 to 1.2 Nm
2 x (0.75 to 2.5) mm²
Max. 2 x 4 mm²
2 x (0.5 to 1.5) mm²
2 x (0.75 to 2.5) mm²
2 x (18 to 14)
2 x 12
Motor starter protectors Contactors
Pozidriv size PZ 2, Ø 5 to 6 mm
2.0 to 2.5 Nm
2 x (1.0 to 2.5) mm²
2 x (2.5 to 10) mm²
2 x (1 to 2.5) mm²
2 x (2.5 to 6) mm²
Max. 1 x 10 mm²
2 x (16 to 12)
2 x (14 to 8)
2 x (0.5 to 1.5) mm²
2 x (0.75 to 2.5) mm²
Max. 2 x 4 mm²
2 x (0.5 to 1.5) mm²
2 x (0.75 to 2.5) mm²
2 x (20 to 16)
2 x (18 to 14)
2 x 12
2 x (1.0 to 2.5) mm²
2 x (2.5 to 10) mm²
2 x (1 to 2.5) mm²
2 x (2.5 to 6) mm²
Max. 1 x 10 mm²
2 x (16 to 12)
2 x (14 to 8)
System Manual, 01/2011, A8E56203870002-03
Overload relays ,
1)
current monitoring relays
2 x (0.5 to 1.5) mm²
2 x (0.75 to 2.5) mm²
Max. 2 x 4 mm²
2 x (0.5 to 1.5) mm²
2 x (0.75 to 2.5) mm²
2 x (20 to 16)
2 x (18 to 14)
2 x 12
Overload relays ,
1)
current monitoring relays
2 x (1.0 to 2.5) mm²
2 x (2.5 to 10) mm²
2 x (1 to 2.5) mm²
2 x (2.5 to 6) mm²
Max. 1 x 10 mm²
2 x (16 to 12)
2 x (14 to 8)
SIRIUS Innovations
1)
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