Line Contactors - Siemens SINAMICS S120 Equipment Manual
Booksize power sections cold plate
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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12.2.4
Line Contactors
The line contactor is required for electrical isolation of the DC link of the drive line-up from
the power supply network.
For selection of the line contactor, the characteristic values in the technical specifications
apply. The cable routing, the bundling factor, and the factor for the ambient temperature
according to EN 60204-1 is taken into account in rating the conductors to be connected.
Caution
The line filter must not be switched under load.
When using the digital output to control the line contactor, the make/break capacity must be
taken into account. The coil power is stated for that purpose.
We recommend connecting the contactor coils with suitable varistors to limit the opening
overvoltage.
Equipment Manual Booksize Cold-Plate Power Sections
Manual, (GH4), Edition 06.2005, 6SL3097-2AJ00-0BP2
12.2 Selection of Devices Required for Operating SINAMICS
Cabinet Design and EMC
12-7
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