Installation
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Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • 861-9601.9
19.5
Tightening torques
If not stated otherwise and if there is no deviating manufacturer information, the following
tightening torques apply to 8DA10 switchgear:
Busbar housing cover with bursting disc and
desiccant bag holder for 2x 250 g desiccant
bags
•
①
Adhesive label: Filter
Busbar housing post insulator cover without
desiccant holder
•
②
Adhesive label: Busbar direction
Busbar housing post insulator cover with
desiccant holder for 1x 450 g desiccant bag
•
①
Adhesive label: Filter
•
②
Adhesive label: Busbar direction
Type of housing cover
Front view
Rear view
Joint
Material/material
Thread
Tightening torque
Metal joints
Sheet-steel/sheet-steel
e. g.: front plates, top
plates, etc.
M6 (self-tapping)
12 Nm
M8
30 Nm
Earthing busbar
Sheet-steel/copper
M8
21 Nm
Sheet-steel/copper
M10
30 Nm
Sheet-steel/copper
M12
70 Nm
Copper/copper
M8
21 Nm
Copper/copper
M12
70 Nm
Current conductor joint
Copper/copper
M8
21 Nm
Copper/copper
M10
40 Nm
Copper/aluminum
M12
50 Nm