Siemens SINAMICS S120 Manual page 432

Options
8.30 L51, holder for ARC detector
Description
Special holders have been developed to enable monitoring of the cabinet system for arcing
faults. The VA1DA1 arc systems from Vamp Ldt. as well as TVOC from ABB are supported
by these holders.
Figure 8-34
If ARC detectors are to be used, factory-fitted holding plates are installed in the cabinet at
points defined during configuration.
The ARC processing units should preferably be centrally mounted. Line Connection Modules
or variable units are ideal for this.
Figure 8-35
432
Option L51, holder for arc sensor (ARC detection)
Option L51, holder for arc sensor secured in the cabinet
Cabinet Modules
Manual, (GH5), 05/2010, A5E03263538A