Siemens 8DA10 Series Installation And Operating Instructions Manual page 69

Example: Assembling
top units for
busbar voltage
transformer 4MU4
861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11
Fig. 55: Inserting the busbar
①
Busbar in the fixed-mounted panel
② Upper connecting bar
③ Upper disconnector contact
④ Cup head bolt with hexagon nut and conical spring washer (5x)
⑤
Busbar in the panel to be lined up
⑥ Lower disconnector contact
⑦ Lower connecting bar
➭ Prepare the flanges of the busbar housing, and bolt them together.
➭ Align the busbar and the connecting bars so that the busbar section is in line and the bolts
fit through the hole.
Fig. 56: Bolting the busbar and the connecting bars
together
➭ Tighten the bolts in this busbar section (tightening torque: 40 Nm).
Installation
① Upper connecting bar
② Cup head bolt with hexagon nut
and conical spring washer
M10x85 (1x)
③ Cup head bolt with hexagon nut
and conical spring washer
M10x65 (4x)
④
Busbar in the panel to be lined
up
⑤
Lower connecting bar
⑥ Busbar in the fixed-mounted
panel
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