Siemens SIRIUS 3RT - Page 242

Connection
8.2 Conductor cross-sections
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
242 Manual, 09/2017, A5E03656507120A/RS-AE/006
Table 8- 24 Main conductors of size S6 with M8 screws
Contactor with busbar connection
Connecting bars (M8 x 25)
2 x 15 x 4 mm
M8 x 25
Tightening torque
10.0 ... 14.0 Nm
Finely stranded with cable lug
2 x (25 ... 120) mm²
1)
2 x (AWG 4 to 250 kcmil)
Stranded with cable lug
2 x (16 ... 95) mm²
1)
2 x AWG 6 to 3/0
AWG
4 ... 250 kcmil
1)
When connecting cable lugs according to DIN 46235 with conductor cross-sections of 95 mm
2
and more, the
3RT1956-4EA1 terminal cover must be used to ensure phase clearance.
Table 8- 25 Main conductors of size S10 / S12 with M10 screws
Contactor with busbar connection
Connecting bars (M10 x 30)
2 x 25 x (..) mm
M10 x 30
Tightening torque
14.0 ... 24.0 Nm
Finely stranded with cable lug
2 x (70 ... 240) mm²
1)
2 x (AWG 2/0 to 500 kcmil)
Stranded with cable lug
22 x (50 ... 240) mm²
1)
2 x AWG 1/0 to 500 kcmil
1)
When connecting cable lugs in accordance with DIN 46234 for conductor cross-sections from 240 mm
2
, as well as
DIN 46235 for cable cross-sections from 185 mm
2
, use the 3RT1966-4EA1 terminal cover to ensure phase spacing.