Halogen-Free Flexible USB 3.0 / USB 3.2 Gen 1×1 Rail Data Cable
This flexible halogen-free USB data cable is designed for USB 3.0 and USB 3.2 Gen 1×1 connections in railway vehicles. Its 90 Ω differential construction and combined aluminum-foil and tinned-copper-braid shielding support stable high-speed data transmission in interference-sensitive onboard systems.
Key Highlights
USB 3.0 compatible · USB 3.2 Gen 1×1 compatible · Designed for railway data systems · 90 Ω characteristic impedance · Three differential twisted pairs · Aluminum-foil and tinned-copper-braid shielding · Stable high-speed data transmission · Compact 5.2 mm construction · Halogen-free and low smoke · EN 45545-2 R15/R16 HL1–HL2 · UN/ECE R118 flame retardancy · Oil and fuel resistant · PFAS-free option
Suitable for USB 3.0 and USB 3.2 Gen 1×1 data connections inside and outside railway vehicles.
Typical applications include:
Onboard infotainment systems
Diagnostic and maintenance interfaces
Passenger communication systems
Cameras and video equipment
Data-storage devices
Control and monitoring equipment
Service interfaces and onboard networks
The flexible, screened construction is suitable for restricted installation spaces and railway environments exposed to mechanical stress and electromagnetic interference.
Cable configuration: 3 × (2 × 30 AWG) twisted-pair elements plus 2 × 28 AWG conductors
Conductor: Fine-stranded tinned copper
Core insulation: Special halogen-free insulation compound
Core identification: According to the approved cable drawing
Core and pair arrangement: According to the approved cable drawing
Shielding: Aluminum foil combined with an overall tinned copper wire braid
Outer sheath: Special halogen-free compound
Standard sheath color: Black, similar to RAL 9005
Peak operating voltage: Maximum 90 V
UL voltage rating: 300 V
Testing voltage:
Core to core: 2000 V
Core to screen: 2000 V
Characteristic impedance: 90 Ω ± 10 Ω
Minimum bending radius:
Fixed installation: 4 × cable diameter
Flexible use: 12 × cable diameter
Temperature range:
UL applications: Up to +75°C
Fixed installation: −50°C to +90°C
Flexible use: −40°C to +90°C
Railway fire protection: EN 45545-2, requirement sets R15 (EL1A) and R16 (EL1B), Hazard Levels HL1–HL2
Flame propagation: IEC 60332-3-25 and EN 50305 Section 9.1.2
Flame retardancy: IEC 60332-1-2 and ISO 6722 / UN/ECE R118
Halogen-free requirements: EN 50306-1 and EN 50264-1
Hydrogen chloride content: Maximum 0.5% according to IEC 60754-1
Combustion gas pH value: Minimum 4.3 according to IEC 60754-2
Conductivity: Maximum 10 µS/mm according to IEC 60754-2
Fluorine content: Maximum 0.1% according to IEC 60684-2
Smoke density: IEC 61034
Toxicity: EN 50305
Oil and fuel resistance: EN 50264-1
Flexibility: Good
Weather resistance: Good
Environmental compliance: RoHS compliant; PFAS-free material formulation available
Interface application: Suitable for USB 3.0 and USB 3.2 Gen 1×1 connections
| Cable Configuration | Approx. Outer Diameter | Maximum Outer Diameter | Copper Weight | Approx. Cable Weight |
| 3 × (2 × 30 AWG) + 2 × 28 AWG | 5.2 mm | 5.6 mm | 22.5 kg/km | 39 kg/km |
Other conductor arrangements, cable lengths, sheath colors and connector-assembly options are available on request.
THE FACTORY
BEHIND EVERY METER
Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.
Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.
Source Factory
Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.
Deep Customization
Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.
7-Day Sampling
Rapid samples for new specifications. 15-day lead time on standard production orders.
Global Compliance
35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.
BEFORE YOU ORDER
For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.
Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.
Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.
Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.
Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.
SEND US YOUR
SPECIFICATION
Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.
Your information is used only to prepare your quotation and is never shared with third parties.
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