Thermocouple Connectors

Construction
- Ceramic body with original thermocouple material pins and spring loaded inserts.
- Polarized pins ensure proper connection.
- Oversize screw head for easy wiring.
 

Wire size
- Accepts wires from 0, 1 mm to 0, 6 mm
- Maximum cable diameter 3, 4 mm
 

Temperature rating
- 200 Deg. C Max.

II. Product Features

Precise Adaptation with Wide Compatibility: Supports the full range of J/K/T/E/R/S/N thermocouples, adaptable to fine wires and mineral insulated cables. Compatible with multiple international color coding standards, enabling direct connection with thermocouples of different brands without additional adaptation.

Reliable Structure with Anti-misconnection Design: Adopts a polarized pin structure to enforce correct polarity connection, avoiding signal errors caused by reverse connection. The ceramic body material has excellent insulation performance to isolate interference.

Easy Installation and User-friendly Operation: The oversize screw head design allows easy tightening of wiring even in narrow spaces; dual specifications (standard and mini) adapt to different installation space constraints.

Material Matching for Stable Transmission: The contact materials of the positive and negative poles are completely consistent with those of the corresponding thermocouples, reducing signal attenuation and interference, and ensuring accurate temperature measurement data.

Standardized Design with Strong Versatility: Follows international general structural specifications, enabling seamless connection with various thermocouples and industrial instruments without the need for customized adaptation components.

Color Code
- Available in all color code standards. Incl. IEC, DIN, NFE, BS, JIS, etc.
Calibration Code J K T E R/S U N
Conaract Material Positive Fe NiCr Cu NiCr Cu Cu NiCrSi
Contact Material Negative CuNi NiAl CuNi CuNi Alloy#11 Cu NiSi

Color Code
ANSI Color Code Black Yellow Blue Violet Green White Orange
IEC Color Code Black Green Brown Violet Orange White Pink
DIN Color Code Blue Green

III. Related Component Specifications

Core Contact Components

Pin Terminals: Made of metal materials homologous to thermocouple materials (iron, nickel-chromium, copper, copper-nickel, etc.), with high purity and good conductivity, reducing the impact of contact resistance on signals; the surface is free of oxidation and burrs to ensure tight connection.

Insulating Body: Ceramic material, high temperature resistant (≤200℃) with high insulation resistance, effectively isolating the positive and negative poles to prevent short circuits; high structural strength, impact resistant and wear resistant.

Structural Auxiliary Components

Shell: Made of flame-retardant and temperature-resistant plastic or metal material, with excellent protective performance, suitable for industrial environments; the color is designed according to the corresponding coding standard for quick type identification.

Spring Loaded Inserts: Ensure tight contact between pins and cables, reducing poor contact caused by vibration and improving connection stability.

Fixing Screws: Oversize head design, compatible with conventional tools, making wiring operation labor-saving and efficient; rust-proof material, no jamming during long-term use.

IV. Application Scenarios

With the core advantages of "wide adaptation, stable connection, and easy operation", this product is widely used in industrial scenarios requiring fast and reliable connection of thermocouples, mainly including:

Industrial Automation Production Lines: Signal connection of thermocouples for machine tools and equipment. The standardized interface facilitates quick replacement and maintenance, improving the operation and maintenance efficiency of production lines.

Instrument Matching: Connection between temperature displays, recorders, PLC control systems and thermocouples, ensuring accurate signal transmission and supporting process regulation.

Scientific Research Experimental Equipment: Thermal experimental devices in universities and research institutions, adapting to various thermocouple types to meet diverse experimental needs.

Temperature Measurement of Small Equipment: Temperature monitoring of precision equipment such as electronic components and small reactors. The mini type is suitable for narrow installation spaces.

Mineral Insulated Cable Systems: Used with mineral insulated cables, applicable to the connection of medium and low temperature temperature measurement loops in industries such as chemical engineering and electric power.

V. Product Advantages

Worry-free Adaptation to Reduce Selection Costs: Full-range thermocouple compatibility + multi-cable adaptation + international standard color coding, eliminating the need for separate procurement for different scenarios and reducing inventory and selection difficulty.

Anti-misconnection Design to Improve Reliability: Polarized pins structurally avoid reverse connection errors; the ceramic body is insulated and moisture-proof, reducing temperature measurement deviations caused by connection problems.

Efficient Installation and Convenient Maintenance: The oversize screw head simplifies wiring operation; standard and mini types adapt to different spaces; later replacement does not require professional tools, resulting in low maintenance costs.

Homologous Materials for Lossless Signal: Contact materials are completely matched with thermocouples, with low contact resistance and no signal attenuation during transmission, ensuring temperature measurement accuracy.

Standardized Production with Stable Quality: Produced in accordance with international general specifications, with uniform structure and controllable quality, adapting to mainstream thermocouple equipment worldwide with strong versatility.

VI. Frequently Asked Questions

How to distinguish color codes of different standards?

Answer: Distinguished according to international general specifications. For example, in the ANSI standard, Type K is yellow, Type T is blue, and Type E is purple; in the IEC standard, Type K is green, Type T is brown, and Type E is purple. When purchasing, specify the required standard or select according to the thermocouple type.

Can the connector be used in high-temperature scenarios (exceeding 200℃)?

Answer: Not recommended. The maximum operating temperature of the product is 200℃. Exceeding this temperature will cause the insulation performance of the ceramic body to decrease and the shell to deform, affecting connection stability and service life; a customized special high-temperature connector is required for high-temperature scenarios.

How to ensure stable signals after wiring?

Answer: ① Select a connector completely matching the thermocouple type; ② Ensure tight contact between the cable and the terminal during wiring, and tighten the oversize screw head; ③ Avoid long-term exposure of the connector to humid and corrosive environments, and take protective measures if necessary.

What are the core differences between the mini type and the standard type?

Answer: The core difference lies in size and installation space: the mini type is smaller in volume, suitable for narrow installation positions (such as inside precision equipment); the standard type has a more stable structure and larger contact area, suitable for conventional industrial scenarios. The electrical performance and adaptation range of the two are consistent.

Does the product support customization of special types or specifications?

Answer: Yes. It can be customized according to special thermocouple types, cable sizes or color coding requirements, and exclusive specification development can also be realized by providing drawings. Specific details can be communicated with the manufacturer.

Thermocouple Connectors for thermocouple circuits. Suited for small wires and mineral insulated cables.
 

Manual Welding

Automatic Welding

Insulation Testing

Laser Marking

Warehouse Managing

Thermocouple Assemble

Vacuum Leak Detection

Surface Polishing

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