K-Type Thermocouple Cable Brown with Black Yarn For Industrial Heating
Product Overview
This K-type thermocouple cable (2×0.71mm) from Huona New Material is a high-temperature signal transmission component engineered for industrial temperature measurement scenarios. It features dual 0.71mm-diameter conductors (Chromel-KP positive, Alumel-KN negative) and integrated fiberglass insulation & outer sheath, delivering stable thermoelectric potential transmission while withstanding harsh high-temperature environments. With Class 1 accuracy and a continuous operating temperature of up to 700℃ (intermittent 800℃), this cable is widely used in industrial furnaces, heat treatment equipment, and high-temperature manufacturing processes—combining excellent heat resistance, reliable insulation performance, and clear polarity identification (yellow +, red -) for efficient on-site installation.
Core Specifications & Compliance
- Cable Type: K-type thermocouple extension cable (matches K-type thermocouple thermoelectric characteristics)
- Conductor Specification: 2×0.71mm (single-strand Chromel/Alumel alloy, diameter tolerance ±0.02mm)
- Insulation & Sheath: Integrated fiberglass (continuous operating temp: 700℃; intermittent: 800℃)
- Polarity Color Coding: Positive (+): yellow; Negative (-): red (complies with ANSI standards)
- Accuracy Class: Class 1 (IEC 60584-2)
- Compliant Standards: GB/T 4989-2013, ANSI MC96.1, IEC 60584-2, RoHS 2.0
Key Advantages
1. High-Temperature Resistance & Stability
- Fiberglass Insulation/Sheath: The integrated fiberglass structure (high-purity glass fiber braid) resists 700℃ continuous high temperature, with no insulation breakdown or performance decay after 1000 hours of operation at 650℃—far exceeding the 260℃ limit of PVC-insulated cables.
- Stable Thermoelectric Potential: At 700℃, the cable's thermoelectric potential deviation is ≤±1.5℃ (Class 1 accuracy), ensuring consistent temperature measurement for precision heat treatment (e.g., automotive part quenching).
2. Optimized Conductor & Structural Design
- 2 ×0.71mm Conductor: The single-strand 0.71mm diameter balances conductivity (loop resistance ≤2.5Ω/m) and flexibility, fitting narrow installation spaces (e.g., furnace wall gaps) while avoiding signal interference from multi-strand stranding.
- Tight Braid Structure: The fiberglass sheath has a braiding density ≥95%, effectively isolating high-temperature dust, molten droplets, and weak corrosive gases—extending service life in industrial environments.
3. Easy Installation & Reliability
- Clear Polarity Identification: Yellow/red color coding for positive/negative conductors eliminates wrong connections, reducing on-site debugging time by 40% and preventing equipment damage from reverse polarity.
- Class 1 Accuracy: Meets strict temperature control requirements (error ≤±0.4% t at 400-700℃), suitable for high-precision scenarios like aerospace component annealing.
Technical Specifications
| Attribute |
Value |
| Conductor Material |
Chromel (KP: NiCr10) / Alumel (KN: NiAl3) |
| Conductor Diameter |
2×0.71mm (tolerance ±0.02mm) |
| Insulation/Sheath Material |
Fiberglass |
| Operating Temperature |
-40℃ to 700℃ (continuous); up to 800℃ (intermittent ≤30min) |
| Accuracy Class |
Class 1 (IEC 60584-2) |
| Thermoelectric Potential Error |
±1.5℃ (0-400℃); ±0.4% t (400-700℃) |
| Loop Resistance (per m) |
≤2.5Ω |
| Bending Radius |
≥10× cable diameter (static); ≥15× (dynamic) |
| Supply Length |
100m/roll (custom length ≥10m) |
Typical Applications
- Industrial Furnaces: Signal transmission for K-type thermocouples in metal heat treatment furnaces (700℃) and ceramic sintering kilns.
- Power & Boiler Systems: Temperature monitoring of boiler flue gas and steam pipelines (resists high-temperature vapor corrosion).
- Precision Manufacturing: High-precision temperature control for aerospace component annealing and automotive part heat treatment.
- High-Temperature Testing: Signal extension for material thermal aging test chambers (intermittent 800℃).