Connecting The 3-Phase Busbar - Siemens Sirius Series System Manual

Accessories
12.4 3-phase busbar
12.4.2

Connecting the 3-phase busbar

The 3-phase infeed terminals are available with screw-type connection technology.
3-phase infeed terminals
There are 3 supply possibilities available for the 3-phase busbar:
● 3-phase infeed terminal, connection from the top, with screw-type connection technology
(3RV1925-5AB)
● 3-phase infeed terminal, connection from the bottom, with screw-type connection
technology (3RV1915-5B)
● 3-phase infeed terminal for installing Type E starters, UL 508, with screw-type connection
technology (3RV1925-5EB)
3-phase infeed terminal – connection from the bottom
Note
The 3-phase infeed terminal with connection from the bottom is connected instead of a
compact starter. You will therefore need to take the space requirements into account when
configuring the 3-phase busbar.
Conductor cross-sections of 3-phase infeed terminals
Table 12-11 3-phase infeed terminal
∅ 5 ... 6 mm/PZ 2
120
3RV1915-5B
(6 ... 25) mm
(6 ... 25) mm
(4 ... 16) mm
AWG 10 to 4
3RV1925-5AB
2 ... 4 Nm
(17.6 ... 35.2 lb·in)
(2.5 ... 25) mm
2
(2.5 ... 25) mm
2
(2.5 ... 16) mm
2
12 to 4
System Manual, 02/2008, GWA 4NEB 560 0601-02 DS 02
3RV1925-5EB
(2.5 ... 25) mm
2
(2.5 ... 25) mm
2
(2.5 ... 16) mm
2
12 to 4
SIRIUS 3RA6 Compact Starter
2
2
2