Robot-Grade CAT 7A Industrial Ethernet Cable for Torsion
This robot-grade CAT 7A Industrial Ethernet cable is engineered for repeated torsional movement in articulated robots and rotating automation equipment. Individually foil-screened pairs, an overall tinned copper braid and a durable PUR jacket provide enhanced EMC protection and stable high-frequency data transmission under demanding industrial conditions.
Key Highlights
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This CAT 7A robotic Ethernet cable is designed for industrial communication systems exposed to continuous rotational and torsional movement.
Typical applications include:
- Six-axis industrial robots
- Collaborative robots
- Robotic arms and rotating joints
- Automated welding systems
- Packaging and palletizing robots
- Rotary tables and handling systems
- Machine vision and inspection equipment
- EtherCAT networks
- EtherNet/IP networks
- Oil-, chemical- and moisture-exposed automation systems
The cable can also be supplied as a finished assembly with M12 or RJ45 connectors.
Available Cable Configurations: 4 × 2 × 26 AWG and 4 × 2 × 24 AWG
Conductor: Fine-stranded bare copper
Core Insulation: Special polymer compound
Pair Identification: White-blue/blue, white-orange/orange, white-green/green and white-brown/brown
Pair Construction: Insulated cores twisted into pairs
Individual Pair Shielding: Each pair separately screened with foil
Overall Stranding: Individually screened pairs stranded together
Overall Shield: Aluminized non-woven tape combined with tinned copper wire braid
Outer Wrapping: Non-woven tape
Outer Jacket: PUR
Jacket Color: Green, similar to RAL 6018
Category: CAT 7A Industrial Ethernet
Maximum Peak Operating Voltage: 90 V
UL/CSA Voltage Rating: 300 V
Test Voltage Core to Core: 2000 V
Test Voltage Core to Shield: 2000 V
Minimum Bending Radius for Fixed Installation: 5 × cable diameter
Minimum Bending Radius for Flexible Application: 10 × cable diameter
Maximum Torsion Angle: ±180° per meter
Temperature Range for Fixed Installation: -40°C to +70°C according to VDE
Temperature Range for Flexible Application: -40°C to +70°C according to VDE
Maximum Temperature under UL Rating: +80°C
Optional Temperature Version: Up to +90°C on request
Characteristic Impedance at 100 MHz: 100 Ω ±10 Ω
Transmission Reference: EN 50288-9-2 and VDE 0819-9-2, CAT 7A
Reference UL Style: 20549
Reference Approvals: UL recognized and CSA approved
Halogen-Free Performance: IEC 60754-1 and VDE 0482-754-1
Flame Performance: Flame retardant and self-extinguishing according to IEC 60332-1-2 and VDE 0482-332-1-2; UL FT2
Oil Resistance: TMPU according to EN 50363-10-2 and VDE 0207-363-10-2
Compatible Industrial Ethernet Protocols: EtherCAT and EtherNet/IP
Environmental Compliance: PFAS-free and RoHS compliant
| Cable Configuration | Approx. Core Diameter (mm) | Approx. Outer Diameter (mm) | Copper Weight (kg/km) | Approx. Cable Weight (kg/km) |
| 4 × 2 × 26 AWG | 1.5 | 8.9 ±10% | 38.5 | 83 |
| 4 × 2 × 24 AWG | 1.6 | 9.3 ±10% | 44.0 | 98 |
Other conductor sizes, jacket colors and customized torsion constructions 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
