Information On The Disconnector Unit - Siemens SINAMICS S120 Manual

Mains connection and line-side power components

3.2 Information on the disconnector unit

Figure 3-1
Figure 3-2
3.2 Information on the disconnector unit
A line disconnector is required for disconnecting the drive line-up from the supply system.
This must be selected in compliance with local regulations.
The accessories required for the line disconnector must be selected from the manufacturer
catalogs.
NOTICE
Damage to the drive electronics when switching the line disconnection equipment under
load
When switching the line disconnection equipment (type according to the recommended
selection) under load, then the contacts will be subject to premature wear. This can cause
the line disconnection equipment to malfunction, with subsequent damage to the drive
electronics.
• Use a leading, opening auxiliary contact.
• If this is not possible, then avoid switching the line disconnection equipment under load.
44
Example of a Blocksize line connection (FSA to FSC)
Example of a chassis line connection
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
AC Drive