Type K Thermocouple Extension Wire – 2-Core Parallel Pair, High-Tex
Glass Fiber Braided Insulated, 28AWG Ultra-Fine Grade
Product Overview
This 2-core parallel pair Type K thermocouple extension wire from
Huona is a high-temperature, ultra-fine signal transmission
solution for high-heat industrial environments, purpose-built for
high-temperature oven wiring, miniature sensor assembly, and
high-temperature process monitoring. Constructed with KP (Chromel,
red) and KN (Alumel, yellow) precision-matched thermocouple alloy
conductors, parallel pair configuration, and high-temperature glass
fiber braided insulation, this wire delivers ultra-stable
thermoelectric performance, industry-leading high-temperature
resistance, and exceptional mechanical protection. It is engineered
for use in high-temperature industrial processes, furnace internal
wiring, and applications where polymer insulation cannot withstand
the operating temperature.
Core Specifications
- Product Name: Type K 2-Core Parallel Pair Thermocouple Extension
Wire
- Conductor Material: KP (Chromel, red) / KN (Alumel, yellow)
- Insulation Material: High-temperature E-glass fiber braid with
high-temperature impregnation coating
- Standard Conductor Size: 28AWG (0.08mm² cross-section per core)
- Wire Configuration: 2-core parallel pair (KP red + KN yellow)
- Standard Outer Diameter: 1.8mm
- Standard Length: 600m/spool (custom cut lengths available)
- Thermoelectric Performance:
- Accuracy Class: IEC Extension Grade 1
- Thermoelectric Power: Strictly calibrated to IEC Type K
thermocouple standards
- Operating Temperature Range: -40°C ~ 400°C (continuous use)
- Standards Compliance: IEC 60584-3, GB/T 4989, RoHS 2.0, REACH
Key Differentiating Advantages
1. Industry-Leading High-Temperature Performance
The high-temperature glass fiber braided insulation maintains
stable electrical and mechanical performance up to 400°C, far
outperforming all polymer-insulated wires. It is perfectly suited
for use in furnace internal wiring, high-temperature oven
monitoring, and other high-heat industrial applications where PVC,
FEP, or silicone insulation would degrade quickly.
2. Ultra-Fine Diameter for Miniature Installations
The 28AWG ultra-fine conductor and compact outer diameter allow for
installation in extremely tight spaces, making it ideal for
miniature thermocouple probe assembly, embedded high-temperature
sensors, and high-density high-temperature wiring. It reduces the
overall wiring volume compared to standard high-temperature wires,
enabling more compact equipment design.
3. Parallel Pair Design for Simplified Installation
The pre-assembled parallel pair comes ready to use, eliminating the
need for manual pairing of individual conductors on-site. The
red/yellow color-coded insulation provides clear polarity
identification, preventing connection errors and reducing on-site
installation time.
4. Superior Mechanical Protection & Abrasion Resistance
The glass fiber braided insulation provides excellent resistance to
abrasion, cutting, and mechanical damage, protecting the conductor
from physical stress during installation and operation. It also
offers excellent resistance to thermal shock, maintaining its
integrity under rapid temperature changes.
5. Long Service Life in Harsh Environments
The glass fiber insulation is inorganic, meaning it does not burn,
melt, or degrade under high-temperature conditions. It is also
highly resistant to chemical corrosion, moisture, and UV radiation,
ensuring long-term reliability in harsh industrial environments.
Technical Specifications Table
| Attribute | Typical Specification |
|---|
| Thermocouple Type | Type K (KP/KN) |
| Insulation Material | High-Temperature E-Glass Fiber Braid |
| Conductor Size | 28AWG (0.08mm² per core) |
| Configuration | 2-core parallel pair |
| Standard Length | 200m/spool |
| Operating Temperature | -40°C ~ 400°C |
| Core Insulation Color | Red (KP) / Yellow (KN) |
| Voltage Rating | 300V |
| Dielectric Strength | ≥1000V AC |
| Insulation Resistance | ≥ 100 MΩ·km |
Supply & Packaging Standard
- Supply Form: Continuous parallel pair wire on standard industrial
plastic spools, available in standard lengths or custom cut-to-size
pieces
- Packaging: Sealed anti-oxidation packaging with moisture-proof
wrapping, suitable for long-term storage and export transit
- MOQ: 1 spool (sample order); bulk quantities available for
industrial OEMs, system integrators, and large-scale projects
- Customization: Conductor size, insulation material, length, and
shielded version (with stainless steel braid for enhanced
protection) available upon request
Typical Application Scope
- High-Temperature Industrial Processes: Temperature monitoring in
furnaces, ovens, and high-temperature production lines.
- Miniature High-Temperature Sensors: Signal transmission for compact
high-temperature thermocouple probes.
- Furnace & Oven Internal Wiring: Internal temperature sensing
wiring for industrial furnaces and ovens.
- High-Volume Sensor Manufacturing: Core material for mass production
of high-temperature Type K thermocouple sensors.
- Thermal Processing Equipment: Temperature monitoring in heat
treatment equipment, kilns, and thermal processing systems.
