Connecting - Siemens SIRIUS ACT 3SU1 System Manual

3SU12 compact units

7.3 Connecting

7.3 Connecting
Procedure for wiring compact units
1. Insert the relevant cable as far as it will go into the opening of the screw terminal of the
compact unit.
2. Insert the screwdriver (DIN ISO 8764-1-PZ1) into the opening for the screw.
Tighten the screw.
Tightening torque: 0.8 ... 1.0 Nm
3. Pull on the cable to ensure it is screwed tight.
Conductor cross-sections for compact units
DIN ISO 8764-1-PZ1
(acc. to DIN 46228)
(acc. to DIN 46228)
AWG
168
①
Screw terminals
Tightening torque:
0.8 ... 1.0 Nm
2x (1.0 ... 1.5) mm
2x (0.5 ... 0.75) mm
2x (1.0 ... 1.5) mm
2x (0.5 ... 1.5) mm
2x (18 to 14)
2
2
2
2
SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 08/2018, A5E03457306020A/RS-AK/010
②