SINAMICS S120
Engineering Information
SINAMICS Engineering Manual – November 2015
Ó Siemens AG
379/528
Maximum permissible motor cable length
Line supply
voltage
Output power Rated output current Shielded cable Unshielded cable
With one motor reactor
380 V – 480 V 1.6 kW - 2.7 kW 3 A – 5 A 100 m 150 m
3AC 4.8 kW 9 A 135 m 200 m
9.7 kW 18 A 160 m 240 m
16 kW 30 A 190 m 280 m
24 kW - 107 kW 45 A – 200 A 200 m 300 m
Permissible motor cable lengths with a motor reactor for SINAMICS S120 Motor Modules in Booksize format
The motor reactors are designed for a maximum pulse frequency of 4 kHz. The maximum permissible output
frequency is 120 Hz in systems with motor reactors.
In systems where SINAMICS S120 Booksize units are used within the SINAMICS S120 Cabinet Modules product
spectrum, it is important to read the supplementary information relating to options L08 / L09 in chapter "Description of
Options for Cabinet Units".
6.9.2 Chassis units
As standard, i.e. without motor reactors or motor filters (dv/dt filters, sine-wave filters) connected to the Motor Module
output, the following permissible cable lengths apply to SINAMICS S120 Motor Modules in Chassis and Cabinet
Modules format.
Maximum permissible motor cable length as standard
Line supply voltage Shielded cable
e. g. Protodur NYCWY
Unshielded cable
e. g. Protodur NYY
380 V – 480 V 3AC 300 m 450 m
500 V – 690 V 3AC 300 m 450 m
Permissible motor cable lengths as standard for SINAMICS S120 Motor Modules in Chassis and Cabinet Modules format
When a motor reactor is used or two motor reactors are connected in series, the permissible cable lengths can be
increased. A second motor reactor is not a standard option for the S120 Cabinet Modules and may require an
additional cabinet (available on request).
The table below specifies the maximum motor cable lengths with motor reactor(s) that can be connected to S120
Motor Modules in Chassis and Cabinet Modules format. The values apply to the motor cable types recommended in
the tables and to other standard types of cable.
Maximum permissible motor cable length
with 1 reactor
(Option L08 with S120 Cabinet Modules)
with 2 series-connected reactors
(on request for S120 Cabinet Modules)
Line supply voltage Shielded cable
e.g. Protodur
NYCWY
Unshielded cable
e.g. Protodur
NYY
Shielded cable
e.g. Protodur
NYCWY
Unshielded cable
e.g. Protodur
NYY
380 V – 480 V 3AC 300 m 450 m 525 m 787 m
500 V – 690 V 3AC 300 m 450 m 525 m 787 m
Maximum permissible motor cable lengths with 1 or 2 motor reactors for Motor Modules in SINAMICS S120 Chassis and
Cabinet Modules format
Note:
The specified motor cable lengths always refer to the distance between the S120 Motor Module and motor along the
cable route. They allow for the fact that several cables must be routed in parallel for drives with higher output power.
The recommended and maximum connectable cross-sections as well as the permissible number of parallel motor
cables are unit-specific values. You must, therefore, refer to the technical specifications for the relevant Motor
Modules.
For more information, see section “Motor reactors” of the chapter “Fundamental Principles and System Description”.
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