Planning the electrical installation 731) The cable sizing is based on max. 9 cables laid on a cable ladder side by side, three laddertype trays one on top of the other, ambient temperature 30 °C, PVC insulation, surfacetemperature 70 °C (EN 60204-1 and IEC 60364-5-52/2001). For other conditions, size thecables according to local safety regulations, appropriate input voltage and the load currentof the drive. See also page 194 for the accepted cable sizes of the drive.2) The cable sizing is based on NEC Table 310-16 for copper wires, 75 °C (167 °F) wireinsulation at 40 °C (104 °F) ambient temperature. Not more than three current-carryingconductors in raceway or cable or earth (directly buried). For other conditions, size thecables according to local safety regulations, appropriate input voltage and the load currentof the drive. See also page 195 for the accepted cable sizes of the drive.3) The biggest cable size accepted by the connection terminals of frame R8 is 2 × (3×150).Biggest possible cable size is 3x240 or 400 MCM if the terminal type is changed and thecable entry box is not used. Alternative power cable typesThe recommended and not allowed power cable types to be used with the drive arepresented below.Recommended power cable typesPower cable types for limited useSymmetrical shielded cable with three phase conductors and aconcentric PE conductor as shield. The shield must meet therequirements of IEC 61800-5-1, see page 69. Check with local /state / country electrical codes for allowance.Symmetrical shielded cable with three phase conductors and aconcentric PE conductor as shield. A separate PE conductor isrequired if the shield does not meet the requirements ofIEC 61800-5-1, see page 69.Symmetrical shielded cable with three phase conductors andsymmetrically constructed PE conductor, and a shield. The PEconductor must meet the requirements of IEC 61800-5-1.A four-conductor system (three phase conductors and aprotective conductor on a cable tray) is not allowed for motorcabling (it is allowed for input cabling).PEPEPEPE
