Owner manual
PSEN 4.2a/b/p/M12
Operating Manual PSEN 4.2a/b/p/M12 
22188-EN-02
14
Parallel assembly
Drill holes in the mounting surface (see Di-
mensions [
 19]) and cut threads in the 
holes for M4 screws.
Use a screw to fix the safety switch in place.
1.  Do not fully tighten the 2nd screw on the 
safety switch.
2.  Attach the screws for the actuator, leav-
ing a distance of 3 … 6 mm between the 
screw head and plate.
Slide the actuator on to the mounting sur-
face. The inscribed area on the actuator 
(sensing face) should face the safety switch.
Slide the actuator on to the screws.
Align the safety switch and tighten the 
screws.
Align the actuator and tighten the screws.










