Thermocouple wires are specialized conductors used to transmit temperature signals from thermocouple sensors to measurement instruments in industrial applications.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Wire Gauge | AWG 20 to 30 (0.5mm to 0.05mm diameter) | |
| Calibration | To IEC 60584 or ASTM E230 standards | |
| Response Time | <1 second for exposed junctions | |
| Accuracy Class | Class 1 (±1.5°C) or Class 2 (±2.5°C) | |
| Temperature Range | -200°C to 1200°C (varies by type) | |
| Insulation Resistance | >100 MΩ at 500V DC |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A precision thermocouple probe assembly is a critical temperature sensing component used in industrial measurement, testing, and control equipment.
Temperature sensors that generate a voltage proportional to temperature difference, used for monitoring and controlling heat in heating platens.
A temperature measurement device that converts thermal energy into electrical voltage using the Seebeck effect.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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Thermocouple wire uses the same alloys as the thermocouple itself and can be used throughout the circuit. Extension wire uses different, less expensive alloys that match the thermoelectric properties only within a limited temperature range (typically 0-200°C) and is used to extend the distance between the thermocouple and instrument.
Select based on: 1) Matching the thermocouple type (K, J, T, etc.), 2) Temperature range of your application, 3) Environmental conditions (moisture, chemicals, abrasion), 4) Required accuracy class, and 5) Compliance with industry standards for your specific manufacturing process.
Common errors include: temperature gradients along the wire length, improper wire type matching, insulation breakdown causing short circuits, electromagnetic interference in unshielded installations, oxidation at connections, and mechanical damage to the conductor or insulation.
Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.