Braiding Screened Cable Type K 1 Pair Extension Cable KX – PVC Extension Grade Wire
Braiding Screened Cable Type K 1 Pair Extension Cable KX – PVC Extension Grade Wire, Chromel (+) vs Alumel (-) Stranded Conductors, PVC Insulation, Color Code Yellow (+) Red (-) to ANSI MC96.1, Tinned Copper Braid Screen, PVC Sheath Yellow, Alternative Insulations Available: PFA, Silicone Rubber, Fiberglass, Kapton
This braiding screened cable is specifically designed as Type K extension wire for connecting thermocouple probes to control systems or digital displays. The KX extension grade construction features one twisted pair with Chromel (+) and Alumel (-) stranded conductors, using more economical alloys than thermocouple grade wire since it operates outside the high temperature process environment. The insulation is PVC compound with color coding yellow (+) and red (-) per ANSI MC96.1 for clear identification. A tinned copper wire braid screen provides EMI protection for reliable signal transmission. The outer sheath is yellow PVC for easy Type K identification. Alternative insulation materials including PFA, silicone rubber, fiberglass, and Kapton are available for specific temperature and environmental requirements. Extension grade wire offers economical performance for connections from the sensor to instrumentation without experiencing the extreme temperatures and thermal cycling of the probe itself.
Key Features & Technical Advantages
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Type K KX extension grade for probe to instrument connections
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Chromel (+) and Alumel (-) stranded conductors
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ANSI MC96.1 color code: yellow (+), red (-)
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Tinned copper wire braid screening for EMI protection
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PVC insulation and sheath standard
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Alternative insulations: PFA, silicone, fiberglass, Kapton available
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Extension grade economics without process temperature exposure
Specifications & Construction
| Parameter | Details |
|---|---|
| Type | K (KX extension grade) |
| Configuration | 1 twisted pair |
| **Conductor (+) ** | Chromel, stranded |
| **Conductor (-) ** | Alumel, stranded |
| Insulation | PVC (PFA, Silicone, Fiberglass, Kapton optional) |
| Color Code | Yellow (+), Red (-) per ANSI MC96.1 |
| Screen | Tinned copper wire braid |
| Sheath | PVC yellow (PFA, Silicone, Fiberglass, Kapton optional) |
Why Choose Our Type K Extension Cable
We specialize in thermocouple cable technology for temperature measurement applications. Our KX extension cable uses matched alloys for accurate signal transmission from probe to instrument at economical cost. The stranded conductors ensure flexibility for installation, while tinned copper braid screen protects against electrical noise. ANSI color coding enables quick identification. With multiple insulation options available, we can match your specific environmental requirements. As a specialized manufacturer, we control all production stages, offering custom lengths and technical support for your temperature sensing applications.
Typical Applications – Solving Critical Industrial Challenges
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Industrial Furnace Temperature Monitoring: Extends Type K signals from high temperature furnace probes to control rooms without exposing cable to process heat
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Plastic Molding Machine Control: Connects thermocouples in injection molding barrels to temperature controllers in electrical cabinets
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Heat Treatment Process Control: Transmits temperature data from heat treat furnaces to recording and control instruments
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HVAC System Temperature Monitoring: Extends sensor signals in commercial building automation applications
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Laboratory Test Equipment: Connects thermocouple probes to data loggers and digital displays in research settings
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Engine Test Cells: Transmits temperature data from test engines to control rooms in automotive development
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Power Generation Monitoring: Extends thermocouple signals in turbine and boiler temperature measurement systems
Thermocouple Type
| Thermocouple Type | Conductor Type | Temperature Range °F | Standard Limits | Special Limits |
| T | Copper (+) vs Constantan (-) | -330 °F to -85 °F | ± 1.5% | ± 0.8% |
| -85 °F to +270 °F | ± 1.8 % | ± 0.9 °F | ||
| +270 °F to +660 °F | ± 0.75% | ± 0.4% | ||
| J | Iron (+) vs Constantan (-) | +32 °F to +545 °F | ± 0.4% | ± 2 °F |
| +545 °F to +1400 °F | ± 0.75% | ± 0.4% | ||
| E | Chromel (+) vs Constantan (-) | -300 °F to -270 °F | ± 1% | ± 1.8 °F |
| -270 °F to +480 °F | ± 3 °F | ± 1.8 °F | ||
| +480 °F to +640 °F | ± 3 °F | ± 0.4% | ||
| +640 °F to +1600 °F | ± 0.5% | ± 0.4% | ||
| K | Chromel (+) vs Alumel (-) | -330 °F to -165 °F | ± 2% | ± 1% |
| -165 °F to +32 °F | ± 4% | ± 2 °F | ||
| +32 °F to +545 °F | ± 4 °F | ± 2 °F | ||
| +545 °F to +2300 °F | ± 0.75% | ± 4% | ||
| N* | Nicrosil (+) vs Nisil (-) | + 32 °F to +545 °F | ± 4 °F | ± 2 °F |
| + 454 °F to +2300 °F | ± 0.75% | ± 4% | ||
| S | Platinum -10% | +32 °F to +1110 °F | ± 2.7 °F | ± 0.1% |
| Rhodium (+) vs Platinum (-) | +1110 °F to +2650 °F | ± 0.25% | ± 0.1% | |
| R | Platinum -13% | +32 °F to +1110 °F | ± 2.7 °F | ± 1.1 °F |
| Rhodium (+) vs Platinum (-) | +1110 °F to +2650 °F | ± 0.25% | ± 0.1 % | |
| W* | Platinum -30% | +1600 °F to +3100 °F | ± 1% | |
| Rhodium (+) vs Platinum -6% | ||||
| Rhodium (-) | ||||
| W3 | Tungsten -3% | +800 °F to +4200 °F | ± 1% | |
| Rhenium | ||||
| Tungsten -25% | ||||
| Rhenium (-) | ||||
| W3 | Tungsten (+) vs Tungsten -26% | +800 °F to +4200 °F | ± 1% | |
| Rhenium (-) | ||||
| W5* | Tungsten -5% | +800 °F to +4200 °F | ± 1% | |
| Rhenium (+) vs Tungsten -26% | ||||
| Rhenium (-) |
Thermocouple temperature range

Color code to different standards

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FAQ
Q1: What is the difference between thermocouple grade and extension grade wire?
A: Extension grade uses more economical alloys with slightly looser tolerances, suitable for connections from the probe to instrumentation where process temperatures are not experienced. Thermocouple grade is required within the high temperature process.
Q2: Why is the cable screened with tinned copper braid?
A: The tinned copper braid screen protects low-level thermocouple signals from electromagnetic interference that could corrupt temperature readings in industrial environments.
Q3: What does the ANSI MC96.1 color code indicate?
A: ANSI MC96.1 specifies yellow for positive (Chromel) and red for negative (Alumel) in Type K extension wire, ensuring correct polarity connection every time.
Q4: What alternative insulation materials are available?
A: We offer PFA for chemical resistance, silicone rubber for flexibility at extreme temperatures, fiberglass for high temperature exposure, and Kapton for exceptional thermal and mechanical performance.
Q5: Can this cable be used for direct burial or outdoor installation?
A: Standard PVC construction is suitable for indoor and protected outdoor use. For direct burial or harsh outdoor exposure, please consult our engineering team for appropriate insulation and jacketing options.





