Minimum Surface Area Of Grounding Conductor - Siemens SIMOTICS SD Operating Instructions Manual

6.4.3

Minimum surface area of grounding conductor

Table 6- 12
Internal ground terminal
When making connections, ensure the following:
● connecting surface is bare and is protected against corrosion using a suitable substance,
● Locate the cable lug between the terminal clamps.
● Place a spring washer below the screw head.
External ground terminal
When making connections, ensure the following:
● connecting surface is bare and is protected against corrosion using a suitable substance,
● Position the cable lug between the contact bracket and the grounding bracket; do not
● Place a spring washer below the screw head.
● Maintain the tightening torque of the terminal screw as specified in the table.
Low-voltage motors
Operating Instructions, 05/2014, 5 610 00000 02 000
Minimum cross-sectional area of grounding conductor
Minimum cross-sectional area of phase
conductor for installation
S
[mm²]
S ≤ 16
16 < S ≤ 35
S > 35
e.g. acid-free Vaseline.
e.g. acid-free Vaseline.
remove the contact bracket pressed into the enclosure!
6.4 Connecting the grounding conductor
Minimum surface area of associated grounding
connection
[mm²]
S
16
0.5 S
Electrical connection
61