Siemens NXAIR - Plugging on the Low-Voltage Connector

Assembling the panels
70 NXAIR / ≤ 40 kA 110-0084.9 / 15
Fig. 79: Side view of 3150 A / 4000 A busbar assembly,
feeder 400 A
Arrowhead indicates the
inserting direction of the
bolt
Busbar version for busbar current metering panel for U
r
≤ 12 kV
In the busbar current metering panel, the busbars of phases L1 and L3 are directly bolted onto the current
transformers. The busbar of phase L2 has to be connected with a feeder bar. Thereby, observe the inserting
direction as shown below.
(1)
Bolt, conical spring washer
(2)
Nut, conical spring washer
(3)
Feeder bar, phase L2
(4)
Busbar, phase L2
Fig. 80: Busbar current metering panel
:
Busbar assembly phase L2
(for example,
2500 A busbar)
Fig. 81: Details; the arrowhead indicates the
inserting direction of the bolt
L2
L3
L1
3
4
1
1
2
L1
L2
L3