Siemens SIRIUS ACT 3SU1 - Page 210

3SU14 modules
8.3 Connecting
SIRIUS ACT 3SU1 pushbuttons and signaling devices
210 System Manual, 08/2018, A5E03457306020A/RS-AK/010
Procedure for wiring a spring-loaded terminal
Procedure
1. Insert the screwdriver (3RA2908-1A: 3.0 mm x 0.5 mm) into the rectangular opening to
open the terminal (round opening).
2. Insert the cable as far as it will go into the round opening.
3. Remove the screwdriver.
4. Pull on the cable to ensure it is tight.
Conductor cross-sections for contact and LED modules
Screw terminals
Spring-loaded terminals
DIN ISO 8764-1-PZ1
Tightening torque:
contact modules:
0.8 … 0.9 Nm
LED modules: 0.8 … 1.0 Nm
3RA2908-1A: 3.0 mm x
0.5 mm
---
2 x (1.0 ... 1.5) mm
2
2 x (0.25 ... 1.5) mm
2
(acc. to DIN 46228)
2 x (0.5 ... 0.75) mm
2
(acc. to DIN 46228)
—
2 x (1.0 ... 1.5) mm
2
2 x (0.25 ... 1.5) mm
2
(acc. to DIN 46228)
2 x (0.5 ... 1.5) mm
2
(acc. to DIN 46228)
2 x (0.25 ... 0.75) mm
2
AWG
2 x 18 to 14
AWG
2 x 24 to 16