Units with single AC busbars
Units with double AC busbars
a
c
d
e
f
b
Bolt (M12)a
Bolt (M12)b
Joint piecec
Plain washer with electroplated zinc coating and blue chromate passivationd
Spring washer with mechanically sprayed zinc coatinge
Nut (M12)f
WARNING!
Make sure that you install the washers in the correct order, as shown in
the illustration. For example, placing an unpassivated zinc-coated spring
washer directly against the joint piece will cause corrosion.
WARNING!
Do not use any joining parts other than those delivered with the unit. The
parts are carefully selected to match the material of the busbars. Other
parts or materials can form a galvanic couple and cause corrosion.
9. Reinstall any shrouding removed earlier.
10. Repeat procedure for any further sections.
22 Mechanical installation
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