Description of the hardware
5.3 Connecting/wiring
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
75
Requirements
● The insulation on the connection cables must be properly stripped to a length of 10 mm.
● Flexible cables must be fitted with end sleeves or cable lugs for connection to screw-type
terminal blocks.
Procedure for screw-type terminal blocks
Step Operating instruction Figure
1 Insert the relevant cable into square on the
screw-type terminal until it engages.
2 Hold the cable in the screw-type terminal.
3 Tighten the screw of the terminal in which the
cable is inserted.
4 Pull on the cable to ensure it is screwed tight.
Procedure for spring-loaded terminal blocks
Step Operating instruction Figure
1 To release the terminal spring, insert the 3-mm
flat-head screwdriver into the square opening
of the spring-loaded terminal until it engages.
Please observe a 10° horizontal angular
deviation of the screwdriver to the oval
opening.
2 Insert the cable into the oval opening as far as
it will go.
3 Hold the cable in the spring-loaded terminal.
4 Remove the screwdriver.
5 Pull on the cable to ensure it is tight.
~10°
~10°
3 mm
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