商品編號:

Variable Frequency Drive Cable – Classic Symmetrical 2kV Design
1 to 4/0 AWG with Dual Copper Tape Shield

Three Stranded TC Circuit Conductors+ (3) Symmetrical BC Grounds • (2) Spiral Copper Tape Shields (100% Coverage) (ICEA Method 4 Color Code:
Black and Numbered)

XLPE Insulation • Black Sunlight- and Oil-Resistant PVC Jacket

Variable frequency AC motor drive output cables
are subject to harsh operating environments
characterized by high voltage spikes, high noise
levels and adverse environmental conditions.
Typical cabling solutions for this application have
been unshielded tray cables, single-conductor lead
wire installed in conduit or continuously-welded
armored cable. These solutions suffer from complex,
costly installation and potential reliability problems.
Belden Variable Frequency Drive (VFD) Cables
were designed and engineered to overcome
these challenges.
　

The Challenge of VFD Applications
VFD cables carry power from AC drive systems to
AC motors. As a result, these cables must handle
not only the overall high power levels of the
pulse-width modulated (PWM) signals, but also
the extremely high voltage which can occur when
standing waves develop on the conductors. This
high voltage can cause corona discharge between
the conductors of conventional cables, causing
damage not only to the cabling itself, but also
to the motors, bearings, drives and related
equipment. In turn, this damage can cause failure
of the entire drive system, resulting in costly
production downtime.
　

Limitations of Conventional VFD Cables
In addition to experiencing failures due to corona
discharge and adverse environmental conditions,
conventional cabling is difficult and expensive to
install. Armored cable and lead wire in conduit are
cumbersome and heavy and require extremely large
installation bending radii, making installation both
time-consuming and labor intensive. Yet they still
do not solve noise and corona dishcarge problems,
nor do they effectively address the high levels of
noise generated by VFDs.
　

The Belden VFD Solution
Only Belden's series of VFD Cable in gauge sizes
from 16 to 4/0 provide the robust construction
required to deliver superior electrical performance
and reliability, even in the most demanding
industrial environments.
　

Thicker, Industrial-grade
XLPE Insulation
• Provides more stable electrical
performance than PVC
• Lower capacitance resulting in
- Longer cable runs
- Reduced peak motor terminal
voltage for extended motor life
- Reduced likelihood of corona discharge
- Reduced magnitude of standing waves
- Increased efficiency of power transfer
　

High-strand Tinned Copper
Circuit Conductors
• More flexible for ease of installation
• Better vibration resistance
• Numbered for ease of identification
　

Industrial-grade PVC or Haloarrest
Low Smoke Zero Halogen Jackets
• Sunlight Resistant
• Oil Resistant (PVC only)

Certified to Numerous Safety Standards
(Ratings Vary by Construction)
• 1000V UL Flexible Motor Supply
• 600V or 2000V UL1277 Type TC-ER
per 2005 NEC Article 336
• 1000V CSA AWM I/II A/B FT4
• MSHA
• 90°C Wet/Dry
• Class I & II; Division 2
hazardous locations
• UL1685 Vertical Tray Flame Test
• IEEE 1202/383 Vertical Tray flame test
at 70,000 BTU/hour
• UL Direct Burial
• RoHS compliant
• CE approved
　

Product Cross Reference
Belden VFD cable performance supports AC drives
manufactured by the following companies:
Rockwell Automation, AA Electric, ABB, Baldor,
Cutler-Hammer, Emerson Process Management,
Fivestar Electric Motors, General Electric, Hitachi,
Magnetek, Mitsubishi Electric Automation, Motion
Industries, Quality Drive Systems, Robicon, Siemens,
Square D, Toshiba and TB Woods.
　

Product Availability
Belden Variable Frequency Drive cables are available
in various standard lengths. Armored versions are
also available. And now, with Belden offering VFD
cables in a wider range of gauges, drive manufacturers
have more options than ever before in specifying
the appropriate sizes for their specific applications.
　

Encoder and Signal Cables
Belden also offers the following standard cables
for encoder applications. Encoder cables help feed
information to the microprocessor regarding both
the speed and the position of the rotor. Signal
cable can be used for brake or thermal
contact applications.

Part Number           Pairs   AWG
8790 (Power Supply)    1          18
9729 (Encoder)             2          24
9730, 89730 (Encoder) 3          24
9728 (Encoder)             4          24
9892 (Encoder)             4          20
9860 (Signal)                 1         16