Siemens SIMOTICS A 1FU8, Operating Instructions Manual

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Electrical connection
6.5 Conductor connection
1FU8
62
Operating Instructions, 02/2016, 5 610 70000 02 000
External ground connection
When making connections, ensure the following:
● Ensure that the connecting surface is bare and is protected against corrosion using a
suitable substance, e.g. acid-free Vaseline.
● Position the cable lug between the contact bracket and the grounding bracket; do not
remove the contact bracket pressed into the enclosure!
● Arrange the flat washer and spring washer under the bolt head.
● Comply with the tightening torque for the terminal screw.
6.4.5 Size of grounding conductor screw
Table 6- 6 Size of grounding conductor screw
Frame size Thread size for the grounding conductor
71 ... 90 M4
112 M5
132 ... 160 M6
6.5 Conductor connection
6.5.1 General information on conductor connection
Cross-sections that can be connected depending on the size of the terminal (possibly
reduced due to size of cable entries)
Table 6- 7 Max. conductor connection for standard machines
Frame size Max. connectable conductor cross-section
[mm²]
71 ... 90 1,5
2.5 with cable lug
112 4,0
132 6,0
160 16,0