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  • Power Flex TOXFREE® | Low Smoke Zero Halogen (LSZH) Cable Range

Standard PVC is a liability. Top Cable Toxfree® is the solution.


European-engineered LSZH cable that protects human life and critical equipment during a fire.

Why LSZH Matters
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The Problem: The Hidden Cost of PVC

Most Australian installations rely on standard PVC. In a fire, PVC releases dense black smoke and hydrochloric acid gas.


  • Zero Visibility: Escape routes become impassable in seconds.
  • Equipment Destruction: Acid gas corrodes sensitive electronics (servers, switchgear) long after the fire is out.
  • Toxic Exposure: Halogens are hazardous to human health.

The Solution: Top Cable Toxfree® Technology

Manufactured by Top Cable and supplied by Powerflex.


  • Low Smoke (IEC 61034): Maintains visibility for safe evacuation.
  • Zero Halogen (IEC 60754): No toxic or corrosive gas emission.
  • Fire Retardant (IEC 60332): Prevents the flame from travelling along the cable run.

Ideal Applications

  • Public Infrastructure: Preventing acid damage to servers during minor electrical fires.
  • Data Centres: Acid gas corrodes sensitive electronics (servers, switchgear) long after the fire is out.
  • Confined Spaces: Marine and mining environments with poor ventilation.

Our TOXFREE® LSZH Cable Range

We provide a focused range of TOP CABLE LSZH products, ensuring a compliant solution for general power, VSD, and specialised marine applications.


TOXFREE® ZH N2XH Flex

TOPDRIVE® VSD (EMC) ROZ1-K (AS)

TOXFREE® MARINE XZ1-K (AS)

TOXFREE® MARINE XOxTCuZ1-K (AS)

TOXFREE® ZH H07Z-K

TOXFREE® ZH MX

TOXFREE® Earth Flex

The flexible alternative to orange circular for Green Star projects.Double screened for motors and drives in sensitive areas.DNV-GL approved for offshore and marine boards.Halogen-free switchboard wiring.Halogen Free Switchboard WiringHalogen Free Switchboard WiringHalogen Free Switchboard Wiring
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Technical Specification Support

Don't rely on generic data. We provide full technical datasheets, burn-test results, and certification documents to support your engineering submission.
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Global Compliance. Local Distribution.

Power Flex is TROPAC’s dedicated cable division. We manage the exclusive Australian supply chain for Top Cable, ensuring the Toxfree® range is fully traceable and backed by TROPAC’s technical support. We guarantee DNV, IEC, and Green Star compliance on every drum.


Download Compliance Certificates
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The Difference in a Fire: PVC vs Toxfree®


Standard PVC

High Risk

  • Dense black smoke
  • Releases hydrochloric acid
  • Corrodes equipment, blocks exits, toxic to inhale

Top Cable Toxfree®

Maximum Safety

  • Low translucent smoke
  • 0% halogens
  • Protects electronics, safe evacuation, non-toxic

The PVC Risk Factor

When PVC burns, it releases hydrochloric acid gas and dense black smoke. This corrodes sensitive electronics (servers, switchgear) and blocks escape routes. Toxfree® LSZH eliminates this risk, ensuring visibility and equipment protection during a fire event.


FeatureStandard PVCToxfree® LSZHImpact
Halogen ContentHigh (≈18% Cl)ZeroPVC creates acid gas; LSZH does not
Acid Gas Emission⚠️>20% HCl<0.5% HClProtects sensitive switchgear & reduces insurance risk
Smoke Density⚠️Dense, blackLight, translucentEnsures escape routes remain visible for safe evacuation
Light Transmittance<15%>60%Enables safe evacuation
Toxic FumesHighLowMitigates liability for occupant safety
StandardAS/NZS 5000.1IEC 60754 / 61034Ready for Green Star & Tier 1 projectsReady for Green Star & Tier 1 projects

The new standard for High-Rise and Public Infrastructure.


Toxfree® eliminates corrosive acid gas and toxic smoke, protecting your equipment and your reputation.

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Frequently Asked Questions