Continuous-Flex PUR PROFIBUS PA Cable for Drag Chains
A shielded PUR PROFIBUS PA cable design for process equipment with moving cable carriers. The reference construction combines extra-fine stranded copper, an overall tinned copper braid, and a textured PUR jacket.
Key Highlights
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This design suits fieldbus links to instruments on moving process equipment, such as a sampling carriage connected to a fixed junction box. Where the cable runs through a drag chain, use the continuous-flex bend radius when checking carrier clearance throughout the stroke. For fixed sections of the same network, see the PROFIBUS PA cable options.
| Component | Reference design |
| Conductors | Extra-fine stranded bare copper, 0.25 mm² |
| Core insulation | 2YI1 polyethylene (PE) |
| Core identification | Red and green for the single-pair PA layout. DIN 47100 colors for the two-pair Type B layout. |
| Core wrap | PET polyester film and nonwoven tape |
| Overall screen | Tinned copper braid |
| Outer jacket | Textured TMPU polyurethane (PUR), red lilac (RAL 4001) |
| Parameter | Reference value |
| Installation duty | Fixed, flexible, and continuous cable carrier use |
| PA characteristic impedance | 100 Ω ±20% |
| Type B characteristic impedance | 100–130 Ω above 100 kHz |
| Peak operating voltage of bulk cable | 350 V max. |
| Dielectric test voltage | 1,500 V core-to-core, 1,200 V core-to-screen |
| Minimum bend radius | 7.5 × cable OD for general routing, 12 × OD for continuous flex |
| Temperature range | −40 to +70 °C in fixed and flexible use |
| Jacket compound and oil resistance reference | TMPU per EN 50363-10-2 |
| Conductor layout | Nominal OD (±10%) | Copper figure | Approx. cable weight |
| 1 pair, 2 × 0.25 mm² | 5.2 mm | 15.9 kg/km | 33 kg/km |
| 2 pairs, 2 × 2 × 0.25 mm² | 6.8 mm | 26.4 kg/km | 57 kg/km |
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