Oval Parallel-Core PVC Thermocouple Extension and Compensating Cable
This compact thermocouple cable features two stranded conductors arranged in parallel within an oval PVC-insulated profile. A colored stripe identifies the positive conductor, supporting reliable polarity recognition during installation and termination.
Key Highlights
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Recommended for compact thermocouple extension and compensating circuits where a lightweight, low-profile cable is required.
Typical applications include:
- Thermocouple sensors
- Temperature transmitters
- Industrial monitoring equipment
- Process-control systems
- Laboratory and testing instruments
- Heating and cooling equipment
- Machinery temperature monitoring
- Compact sensor wiring
The conductor alloy and polarity must correspond exactly to the thermocouple and selected extension or compensating cable type.
Conductor: Stranded thermocouple extension or compensating alloy
Number of cores: Two
Core arrangement: Conductors positioned in parallel
Insulation: PVC type TI2 according to EN 50363-3
Overall shape: Oval
Polarity identification: Colored stripe on the positive conductor
Nominal reference cross-section: 0.75 mm²
Alternative cross-sections: 1.00 mm², 0.50 mm² and 0.22 mm², with other constructions subject to confirmation
Outer sheath: None; the parallel insulated cores form the finished oval profile
Minimum bending radius: 7.5 × cable diameter
Temperature range:
- Fixed installation: −40°C to +70°C
- Flexible application: +5°C to +70°C
Insulation resistance: Greater than 1 MΩ·km
Radiation resistance: Approximately 8 × 10⁷ cJ/kg
Flame performance: Flame-retardant and self-extinguishing according to IEC 60332-1-2
Available thermocouple configurations include:
| Thermocouple Type | Cable Designation | Reference Conductor Materials | Reference EMF at 100°C |
| T | TX | Cu / CuNi | 4.28 mV |
| J | JX | Fe / CuNi | 5.27 mV |
| K | KX, KCA or KCB | NiCr / Ni or corresponding compensating alloy | 4.10 mV |
| E | EX | NiCr / CuNi | 6.32 mV |
| R or S | RCB or SCB | Corresponding extension or compensating alloy | 0.65 mV |
| N | NC | NiCrSi / NiSi | 2.77 mV |
| L | LX | Fe / CuNi | 5.37 mV |
| U | UX | Cu / CuNi | 4.25 mV |
Special BC-100 and BC-200 compensating constructions for type B thermocouples are not standardized and require application-specific verification.
Compliance reference: RoHS-compliant and PFAS-free material options
Representative standard construction:
| Configuration | Nominal Cross-Section | Approx. Cable Dimensions | Approx. Weight per 100 m |
| 2 parallel stranded conductors | 0.75 mm² | 1.9 × 3.8 mm | 1.8 kg |
Finished dimensions depend on conductor cross-section, selected thermocouple alloy and insulation requirements.
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
