ABB AFC094AE02 HIEE200130R0002 HMI
Alternative power cable typesPower cable types that can be used with the drive are represented below.
The following power cable type is not allowed.
Motor cable shield
To effectively suppress radiated and conducted radio-frequency emissions, the
shield conductivity must be at least 1/10 of the phase conductor conductivity. The
requirements are easily met with a copper or aluminium shield. The minimum
requirement of the motor cable shield of the drive is shown below. It consists of a
concentric layer of copper wires with an open helix of copper tape or copper wire.
The better and tighter the shield, the lower the emission level and bearing currents.
Symmetrical shielded cable with individual shields for each phase
conductor is not allowed on any cable size for input and motor cabling.
Symmetrical shielded cable: three phase conductors
and a concentric or otherwise symmetrically
constructed PE conductor, and a shield
Recommended
PE conductor
and shield
Shield Shield
A separate PE conductor is required if the conductivity
of the cable shield is < 50% of the conductivity of the
phase conductor.
A four-conductor system:
three phase conductors
and a protective
conductor
Shield
PE
PE
PE
Not allowed for motor cables with phase
conductor cross section larger than 10 mm2
[motors > 30 kW (40 hp)].

Additional US requirements
Type MC continuous corrugated aluminum armor cable with symmetrical grounds or
shielded power cable must be used for the motor cables if metallic conduit is not
used. For the North American market, 600 V AC cable is accepted for up to
500 V AC. 1000 V AC cable is required above 500 V AC (below 600 V AC). For
drives rated over 100 amperes, the power cables must be rated for 75 °C (167 °F).
Conduit
Separate parts of a conduit must be coupled together, bridge the joints with a ground
conductor bonded to the conduit on each side of the joint. Bond the conduits also to
the drive enclosure and motor frame. Use separate conduits for input power, motor,
brake resistor, and control wiring. When conduit is employed, type MC continuous
corrugated aluminium armor cable or shielded cable is not required. A dedicated
ground cable is always required.
Note: Do not run motor wiring from more than one drive in the same conduit.
Armored cable / shielded power cable
Six conductor (3 phases and 3 ground) type MC continuous corrugated aluminum
armor cable with symmetrical grounds is available from the following suppliers (trade
names in parentheses):
• Anixter Wire & Cable (Philsheath)
• BICC General Corp (Philsheath)
• Rockbestos Co. (Gardex)
• Oaknite (CLX).
Shielded power cables are available from Belden, LAPPKABEL (ÖLFLEX) and
Pirelli.