Continuous-Flex CAT 7A Industrial Ethernet Cable
This continuous-flex Category 7A Industrial Ethernet cable is designed for cable tracks and demanding automation systems. Individually foil-screened twisted pairs, an overall tinned-copper braid and a durable PUR outer sheath support stable high-frequency data transmission under repeated movement, oil exposure, moisture and harsh industrial conditions.
Key Highlights
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Recommended for industrial Ethernet networks requiring Category 7A transmission performance and continuous cable-track movement.
Typical applications include:
- Cable tracks and energy chains
- Industrial automation systems
- Construction and mobile machinery
- Machine tools
- Material-handling equipment
- Automated production lines
- EtherCAT networks
- EtherNet/IP systems
- Equipment exposed to oil, grease, chemicals or moisture
Finished-cable transmission performance must be validated over the required cable length and with the selected connectors.
| Component | Construction |
| Conductor | Fine-stranded bare copper |
| Core insulation | Special polymer compound |
| Pair identification | White/blue, white/orange, white/green and white/brown |
| Pair formation | Insulated conductors twisted into pairs |
| Individual pair screen | Foil screen around each pair |
| Overall assembly | Screened pairs stranded together |
| Overall screen | Aluminized nonwoven tape and tinned-copper wire braid |
| Wrapping | Nonwoven protective tape |
| Outer sheath | Abrasion- and oil-resistant polyurethane |
| Standard sheath color | Green, similar to RAL 6018 |
| Standard configurations | 4 × 2 × 26 AWG and 4 × 2 × 24 AWG |
| Property | Reference Value |
| Category | CAT 7A |
| Maximum operating voltage | 90 V |
| North American voltage reference | 300 V, subject to applicable certification |
| Test voltage, core to core | 2000 V |
| Test voltage, core to screen | 2000 V |
| Minimum bending radius, fixed installation | 5 × cable diameter |
| Minimum bending radius, flexible installation | 10 × cable diameter |
| Minimum bending radius, continuous flexing | 15 × cable diameter |
| Temperature range, fixed installation | −40°C to +70°C |
| Temperature range, flexible installation | −40°C to +70°C |
| Optional upper temperature | Up to +90°C with an application-specific construction |
| North American temperature reference | Up to +80°C, subject to certification |
| Characteristic impedance | 100 Ω ±10 Ω at 100 MHz |
| Transmission reference | EN 50288-9-2, Category 7A |
| Halogen-free performance | According to IEC 60754-1 |
| Flame performance | Flame-retardant and self-extinguishing according to IEC 60332-1-2 |
| North American flame reference | FT2, only where separately certified |
| Oil resistance | According to applicable TMPU requirements of EN 50363-10-2 |
| Network reference | Suitable for EtherCAT and EtherNet/IP applications, subject to system testing |
| Certification reference | UL AWM Style 20549 and CSA approval, only for covered HULK constructions |
| Compliance options | RoHS-compliant and PFAS-free materials, subject to confirmation |
| Configuration | Approx. Core Ø | Approx. Outer Ø | Copper Weight | Approx. Cable Weight |
| 4 × 2 × 26 AWG | 1.5 mm | 8.5 mm | 38.5 kg/km | 81 kg/km |
| 4 × 2 × 24 AWG | 1.6 mm | 10.4 mm | 46.6 kg/km | 101 kg/km |
Outer diameter tolerance: Approximately ±10%
Alternative dimensions, sheath colors and connectorized assemblies 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.
Engineering Support for Your Application
Tell Us How Your Cable Needs to Move
Send us a datasheet, drawing, existing cable model or a short description of your application. Our engineering team will help you identify a suitable cable construction.
- 01 Motion type, travel distance and minimum bend radius
- 02 Voltage, current, signal protocol and shielding needs
- 03 Operating environment, target service life and quantity
