Selecting The Power Cables - ABB ACS355 series User Manual

When more than 4 motors need to be controlled by one drive, contact your local ABB
representative.

Selecting the power cables


General rules
Dimension the input power and motor cables according to local regulations.
• The input power and the motor cables must be able to carry the corresponding
load currents. See section
• The cable must be rated for at least 70 °C (158 °F) maximum permissible
temperature of the conductor in continuous use. For US, see section
US requirements
• The conductivity of the PE conductor must be equal to that of the phase
conductor (same cross-sectional area).
• 600 V AC cable is accepted for up to 500 V AC.
• Refer to chapter
A symmetrical shielded motor cable (see the figure below) must be used to meet the
EMC requirements of the CE and C-Tick marks.
A four-conductor system is allowed for input cabling, but a shielded symmetrical
cable is recommended.
Compared to a four-conductor system, the use of a symmetrical shielded cable
reduces electromagnetic emission of the whole drive system as well as motor bearing
currents and wear.
Ratings on page
on page 43.
Technical data on page
Planning the electrical installation 41
374 for the rated currents.
373 for the EMC requirements.
Additional