Selection Of Devices Required For Operation Of Sinamics; General; Information About Line Isolating Devices; Overcurrent Protection By Means Of Line Fuses Or Circuit-Breakers - Siemens SINAMICS S120 Equipment Manual

8.2

Selection of devices required for operation of SINAMICS

8.2
8.2.1

General

The following components are required to connected to the line supply:
• Line disconnecting device
• Line fuse
• Line contactor (this is required for electrical isolation)
• Line filter (refer to Chapter Line supply connection)
• Line reactor (refer to Chapter Line supply connection)
8.2.2

Information about line isolating devices

The line disconnecting device for the electrical equipment may be used for correct isolation
of the drive line-up from the power supply. This line disconnecting device must be designed
for the electrical equipment of machines in accordance with the requirements of EN 60204-1,
Section 5.3. The relevant technical specifications must be taken into consideration for the
purpose of selecting the device. Other consumers of the electrical equipment must also be
taken into consideration when the device is selected.
The line disconnecting device must be equipped with a leading auxiliary switch (t ≥ 10 ms),
which must be integrated in the switching-off path of the Line Modules (EP terminals).
The accessories required for the line disconnecting device must be selected from the
manufacturer catalogs. See also catalog D21.2.
8.2.3

Overcurrent Protection by Means of Line Fuses or Circuit-Breakers

The cables for the drive line-up power supply must be protected against overcurrents. NH, D,
and DO-type fuses with a gL characteristic or suitable circuit-breakers can be used for this
purpose.
Note
The devices can be connected to line supplies up to 480 V
of 36 kA symmetrical ("uninfluenced current" acc. to EN 60269-1).
The following tables list the requirements regarding line fuses and circuit-breakers for the
Active Line Modules and Smart Line Modules.
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3
Cabinet Configuration and EMC Booksize
8.2 Selection of devices required for operation of SINAMICS
, which can supply a maximum
AC
8-3