Maximum Cable Length - Siemens SIRIUS 3RW30 Manual

8.7

Maximum cable length

The cable between the soft starter and the motor must not be more than 300 m long (3RW30
and 3RW40).
The voltage drop due to the length of the cable to the motor may need to be considered when
dimensioning the cable.
Cable lengths up to 500 m are permitted for SIRIUS 3RW44 soft starters (refer to the 3RW44
System Manual
llisapi.dll?query=3RW44&func=cslib.cssearch&content=skm%2Fmain.asp&lang=de&siteid=c
sius&objaction=cssearch&searchinprim=0&nodeid0=20025979)).
SIRIUS 3RW30 / 3RW40
Manual, 01/2010, 535 1995-02 DS01
(http://support.automation.siemens.com/WW/
Installation / mounting
8.7 Maximum cable length
63