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6.5
Connecting the main circuit
Requirements
● Remove the insulation from the conductor ends so that the remaining insulation is almost
● Insulate the cable lug sleeves to ensure minimum air clearances are maintained.
Short circuits caused by projecting wire ends
The minimum air clearance by be reduced by projecting wire ends. This can result in short
circuits. This can result in death, serious injury or material damage.
Remove protruding cables. Ensure that minimum air clearances as specified in the table
above are maintained.
Connecting using cable lugs
1. Select the cable lugs corresponding to the required cable cross-section and the specified
2. Tighten the contact and fastening nuts to the torque specified in the table below:
Table 6-2
Terminal box connection data
Terminals
Main terminals
Terminal size
Tightening torque
Connectable cable cross-sec‐
tion
Auxiliary terminals
Terminal size
Tightening torque
Connectable cable cross-sec‐
tion
SIMOTICS DC 1HQ7
Operating Instructions 02/2016
long enough to reach the cable lug.
Voltage
Up to 600 V
Up to 800 V
Up to 1200 V
WARNING
dimensions of the terminal connection.
Minimum air clearance
> 8 mm
> 10 mm
> 14 mm
1XB7
gk 602 / gk 604
M16
M10
83 Nm
13 Nm
6 x 240 mm
2 x 35 mm
2
M6
M4
4 Nm
1.2 Nm
35 mm
6 mm
2
Electrical connection
6.5 Connecting the main circuit
gk 702 / gk 704
M12
20 Nm
2 x 70 mm
2
M4
1.2 Nm
6 mm
2
2
2
55
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