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KPX Type K Thermocouple Extension Wire Premium PVC Insulated 0.5mm² 20AWG Universal Temperature Measuring Cable

Place of Origin Shanghai
Brand Name Huona
Certification ISO9001
Model Number KPX
Minimum Order Quantity 200m
Price Negotiable
Packaging Details Carton/Wooden case
Delivery Time 5-21 days
Payment Terms L/C,T/T,Western Union
Supply Ability 500 tons per month
Product Details
Grade KPX Insulation Material High-Grade Flame-Retardant PVC
Conductor Size 20AWG (0.5mm²) Configuration Single-conductor
Standard Length 1000m/spool Operating Temperature -20°C ~ 105°C
Insulation Color Red Voltage Rating 300V
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KPX Type K thermocouple wire

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PVC insulated thermocouple cable

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20AWG temperature measuring cable

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Product Description

KPX Type K Thermocouple Extension Wire – High-Grade PVC Insulated, 0.5mm² 20AWG General-Purpose Grade


Product Overview


This KPX Type K thermocouple extension wire from Huona is a cost-effective, high-reliability signal transmission solution for general industrial Type K temperature sensing systems, purpose-built for bulk industrial projects, building automation, and standard equipment internal wiring. Constructed with KP (Chromel, Type K thermocouple positive leg) precision-calibrated alloy conductor, paired with matching KN (Alumel, negative leg) for complete circuit compatibility, and high-grade flame-retardant PVC insulation, this wire delivers consistent thermoelectric performance, excellent mechanical durability, and outstanding value for large-scale deployments. It is engineered for use in general industrial control systems, HVAC projects, and equipment manufacturing, where balanced performance and cost efficiency are critical.



Core Specifications


  • Product Name: KPX Type K Thermocouple Extension Wire
  • Conductor Material: KP (Chromel, Type K thermocouple positive leg)
  • Insulation Material: High-grade flame-retardant PVC (red finish)
  • Standard Conductor Size: 20AWG (0.5mm² cross-section)
  • Wire Configuration: Single-conductor (KPX Chromel leg, matching KNX Alumel leg available as a matched pair)
  • Standard Outer Diameter: 2.0mm
  • Standard Length: 1000m/spool (custom cut lengths available)
  • Thermoelectric Performance:
    • Accuracy Class: IEC Extension Grade 2
    • Thermoelectric Power: Strictly calibrated to IEC Type K thermocouple standards

  • Operating Temperature Range: -20°C ~ 105°C (continuous use)
  • Standards Compliance: IEC 60584-3, GB/T 4989, RoHS 2.0, REACH, flame-retardant compliance with general industrial wiring standards



Key Differentiating Advantages


1. Cost-Effective for Large-Scale Bulk Deployments


This general-purpose grade offers an optimal balance of performance and cost, making it ideal for large-scale industrial projects, building automation systems, and high-volume equipment manufacturing. The 1000m long spool length reduces material waste and lowers per-unit installation costs, perfect for bulk procurement.

2. Flame-Retardant PVC Insulation for Enhanced Safety


The high-grade flame-retardant PVC insulation meets general industrial safety standards, providing excellent flame resistance, self-extinguishing properties, and good resistance to abrasion, moisture, and mild chemical exposure. It ensures long-term reliability in general indoor and sheltered industrial environments.

3. Precision-Calibrated Conductor for Stable Signal Transmission


The KP (Chromel) conductor is manufactured with strict alloy composition control, ensuring consistent thermoelectric performance and accurate temperature reading transmission. The wire is paired with matching KNX Alumel wire to form a perfectly matched Type K extension circuit, eliminating measurement errors caused by conductor mismatch.

4. Easy Installation & High Visibility


The bright red insulation provides high visibility for easy identification in complex wiring systems, preventing connection errors during installation. The smooth PVC surface allows for fast, clean stripping and termination, reducing installation time and labor costs for large projects.

5. Wide Compatibility with Standard Systems


This wire is fully compatible with all standard Type K thermocouple sensors, connectors, and instrumentation, allowing seamless integration into new or existing temperature monitoring systems. It is suitable for a wide range of general-purpose applications, from HVAC systems to industrial machinery internal wiring.



Technical Specifications Table

Attribute Typical Specification
Thermocouple Type KPX (Type K, Chromel Positive Leg)
Insulation Material High-Grade Flame-Retardant PVC
Conductor Size 20AWG (0.5mm²)
Configuration Single-conductor
Standard Length 1000m/spool
Operating Temperature -20°C ~ 105°C
Insulation Color Red
Voltage Rating 300V
Dielectric Strength ≥1500V AC
Insulation Resistance ≥ 100 MΩ·km



Supply & Packaging Standard


  • Supply Form: Continuous wire on standard industrial plastic spools, available in standard lengths or custom cut-to-size pieces
  • Packaging: Wrapped in stretch film + sealed in moisture-proof outer packaging, 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 matched KNX wire pairs available upon request



Typical Application Scope


  1. General Industrial Control: Temperature signal transmission for Type K thermocouple sensors in standard industrial control systems.
  2. HVAC & Building Automation: Temperature monitoring and control in commercial heating, ventilation, and air conditioning systems.
  3. Equipment Manufacturing: Internal temperature sensing and signal transmission in general industrial machinery and power supplies.
  4. Large-Scale Projects: Bulk temperature wiring for factories, warehouses, and large-scale industrial facilities.
  5. General Indoor Wiring: Temperature monitoring in indoor industrial environments, control cabinets, and equipment rooms.