Siemens 1PH728 Operating Instructions Manual page 33

Size Motor type
1PH7286-..C
1PH7286-..D
1PH7288-..C
1PH7288-..D
1PH728.-..F
reduction factor 0.60
(1)
including ground terminal
(2)
The cable lug size defines the cable cross-section which can be connected, e.g. cable lugs
from 35 to 185 mm
The permissible external diameter of the connecting cable is 31 to 68 mm.
Remove the insulation from the conductor ends so that the remaining insulation is almost
long enough to reach the cable lug.
If necessary, insulate the cable lugs in order to maintain the minimum clearances in air of 10
mm and the 20 mm creepage distance normally present.
The tightening torque for contact nuts and M16 fixing bolts is 90 Nm.
Principles of fitting and laying cables
Lead in permanently laid entries using EMC cable glands. Screw the cable glands into the
threaded holes in the entry plate, which can be unscrewed.
Arrange the exposed connecting cables in the terminal box so that the PE conductor has
excess length and the insulation of the cable strands cannot be damaged.
A5E00177602A AD
Siemens AG Operating Instructions 2.02 1PH728
Siemens Hardware
Terminal Cable
box type
entry
1XB7712 3 x M75 x 1.5
according to DIN 46234 or from 35 to 185 mm
2
Transport, assembly, and connection
Max. poss. No. of main
outer terminals
diameter of
cable [mm]
68 (3+1) x 3 x M16
2)
3.3 Electrical connection
Max. Max. poss.
connectable current per
cross-section terminal
per terminal [A]
[mm ]
2
3 x 185 710
according to DIN 46235.
2
1)
31