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A-56
Electrical and mechanical
accessories
Compact NS630b to 1600
(cont.)
Fixed, front-connection Compact NS630b to 1600
devices are equipped with terminals comprising captive
screws for direct connection of bars.
Other connection possibilities for bars include vertical-
connection adapters for edgewise bars and spreaders
to increase the pole pitch to 95 mm.
If the vertical connection adapters are front oriented,
then it is mandatory to install the arc chute screen in
order to comply with the safety clearances.
Bare cables
Special sets of connectors and terminal shields may be
used to connect up to four 240 mm
2
copper or
aluminium cables for each phase. Bare cable
connection is possible for ratings up to and including
1250 A.
Cables with lugs
Cable lug adapters are combined with the vertical-
connection adapters.
One to four cables with crimped lugs (
y
300 mm
2
) may
be connected.
To ensure stability, spacers must be positioned
between the terminal extensions.
If the cable lug adapters are installed over the top of the
arc chute chambers, then it is mandatory to install the
arc chute screen in order to comply with the safety
clearances.
Front connection of fixed devices
Bars
Functions and characteristics
DB128093
DB128094
DB128097
Vertical-connection adapters.
DB128100
Spreaders.
DB128098
DB128099
DB128101
DB128102
DB128104
DB128106
DB128107
DB128108
DB128103
4-cable connectors.
DB128105
Cable lug adapters.
DB128096
DB128095