Double-screened to contain EMI.
Where it's specified
Made for drive systems.
VSD & drives
Variable-speed motor runs
Motors & pumps
Speed-controlled loads
Conveyors
Lines & materials handling
HVAC drives
Fans, blowers & chillers
Process automation
Plant & machinery
Tunnels & Infrastructure
LSHF required by most enclosed-space specs
Why a screened drive cable.
Run a VSD motor on ordinary unscreened power cable and the drive's fast switching radiates electrical noise — tripping sensors, corrupting data and pitting motor bearings. A symmetrical, screened VSD cable contains it. Here's how TOPDRIVE compares to the alternatives.
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| Unscreened power (RV-K) | TOPDRIVE VFD ROZ1-K | Generic screened | |
| Best for | Mains & feeders | VSD / drive to motor | Light EMI |
| Interference faults | Unscreened — noise trips sensors & comms | 100% Al-PET tape + tinned copper braid — interference contained at the source | Partial braid — gaps in coverage |
| Earth configuration | Single | Symmetrical 3+3 | Single / asymmetric |
| Motor bearing & winding life | Unprotected — overshoot & shaft currents | Damped — reduces shaft currents and bearing wear | Partial |
| Fire behaviour | Smoke + halogens | Low smoke, halogen-free | Varies |
| Insulation | XLPE 90 °C | XLPE 90 °C · Class 5 | Varies |
Rated 0.6/1 kV to IEC 60502-1 / IEC 60092-353. Specify TOPDRIVE for the run between the variable-speed drive and the motor — the noisiest cable on the site.
Why symmetrical & screened
A variable-speed drive switches thousands of times a second. On unscreened cable that energy escapes as electromagnetic interference — nuisance trips, corrupted instrument signals and circulating currents that pit motor bearings and shorten winding life.
TOPDRIVE VFD ROZ1-K is engineered to contain it. An overlapping aluminium-polyester screen with 100% coverage is backed by a full tinned-copper braid — the tape and braid act as a double screen, giving the noise a low-impedance path back to the drive — while the symmetrical 3+3 earth (three grounds in the interstices) balances the impedance to reduce common-mode currents. Together they suppress leakage current and damp the reflected-wave spikes that stress motor insulation.
Two mechanisms, not one abstract claim. Incomplete screen coverage leaves an unbalanced ground return, which induces circulating currents through motor bearings and wears them out over time. Unmanaged voltage peaks from reflected-wave phenomena stress and break down insulation across the installation's service life. The 100% dual screen answers the first; XLPE's lower dielectric constant — 2.3 against 7.4 for PVC — answers the second.
Safe and durable, too. XLPE insulation under a polyolefin LSHF sheath means low smoke and halogen-free in a fire, with chemical, oil and UV resistance for long fixed installs on the plant floor.
Exclusive Australian distributor — Top Cable.
TROPAC holds the exclusive distribution agreement for Top Cable in Australia. We hold local stock of the TOPDRIVE range in Australia, with same-day dispatch on stocked items ordered before 1pm AEST, cut to length for your run.
Full compliance documentation available, so you can verify the cable against your project's specification.
Specify with confidence.
Need a different cable?
TOPDRIVE is the screened cable for the drive-to-motor run. For other jobs, step across to its siblings in the Top Cable cable range.
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The standard unscreened XLPE power cable — 0.6/1 kV, 90 °C, Class 5 — for sub-mains, feeders and cable trays where no EMC screen is needed.
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The low-smoke halogen-free power cable — XLPE, CPR-classified (B2ca / Cca) for public buildings, data centres, hospitals, schools and transport.
Talk to a Product Application Consultant.
Our PACs assist with VSD cable selection, conductor sizing, screen earthing and EMC best practice — and cut TOPDRIVE to length off the reel before it ships. Technical support from local experts across QLD/NT, NSW/ACT and VIC/SA/TAS.
Top Cable TOPDRIVE® VFD ROZ1-K
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A flexible, screened, low-smoke halogen-free power cable (0.6/1 kV) designed for the run between a variable-speed drive (VSD) and its motor. XLPE-insulated with a 100% aluminium-polyester screen backed by a tinned copper braid and a symmetrical 3+3 earth, it limits the electromagnetic interference that drives generate.
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A VSD switches voltage thousands of times a second. On ordinary unscreened cable that radiates EMI — nuisance trips, corrupted instrument signals and circulating currents that pit motor bearings and shorten winding life. A screened, symmetrical VSD cable contains the noise and reduces bearing currents and insulation stress at the motor.
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Three ground conductors balanced in the interstices around the phases give common-mode currents a balanced, low-impedance return path that reduces them — cutting shaft voltages and bearing damage. A 4G configuration (single full-size earth) is available in 1.5–10 mm².
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An overlapping aluminium-polyester tape gives 100% coverage, backed by a full tinned-copper braid — the tape and braid act as a double screen — for a reliable termination. Earth the screen 360° at both ends (drive and motor) for best EMC performance.
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Yes. LSHF to IEC 60754-1, low corrosive gases to 60754-2, light transmittance >80% (61034). Flame and fire retardant to 60332-1 / 60332-3 and EN 50399, with a CPR class of Cca-s1a,d1,a1.
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Dielectric constant. XLPE sits at 2.3, against 7.4 for PVC-insulated alternatives — a lower value means less capacitive coupling under the drive's fast switching, so less energy is passed through the insulation and less leakage current reaches the motor. It also gives a 90 °C conductor rating with 250 °C short-circuit performance for 5 s.
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0.6/1 kV with XLPE insulation, a 90 °C maximum conductor temperature and 250 °C short-circuit rating (max 5 s). Maximum ambient 60 °C; minimum service ‒40 °C (fixed, protected).
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Open air, buried or in conduit, with a minimum bending radius of 10× the cable diameter, so plan the routing. UV resistant (EN 50618) with AD5 (jets) water resistance.
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Available in a range of cross-sections and 3+3 / 4G configurations, supplied on drums or cut to length. Talk to a PAC for the right size and current rating for your drive and motor.
Quiet the drive. Save the motor.
Specify TOPDRIVE for every variable-speed-drive run — 100% screened, symmetrical 3+3 earth, low-smoke halogen-free, stocked, cut to length and supported locally through TROPAC.
Need help specifying?
Send the team your application and a TROPAC Product Application Consultant will come back with the right Top Cable product, stock position and account pricing — usually same business day.
- Selection & cross-reference from your current part numbers
- Stocked in Australia, dispatched nationally
- Trade-account & project pricing