Thermocouple Connectors
Thermocouple connectors are used to maintain accurate temperature measurement connections between sensors, cable and instrumentation.
Explore our comprehensive range of thermocouple connectors at Labfacility — engineered for reliable, accurate temperature measurement and seamless sensor connections. We stock a wide variety of IEC, ANSI & JIS thermocouple connectors, including plugs, sockets, panel-mount and miniature styles in multiple colours and types to match all standard thermocouple alloys. Designed for easy installation and secure signal integrity, our connectors are ideal for industrial, laboratory, educational, and instrumentation applications. Whether you need connectors for field use, control panels, or sensor replacements, Labfacility delivers high-quality solutions to support precise thermocouple systems.
Can’t find what you need? Call or email our technical sales team on +44 (0) 1243 871 280 or sales@labfacility.com for help with product selection and technical support.
IEC (European) Connectors
A comprehensive family of IEC colour coded miniature and standard connectors, accessories, panels, terminal and barrier blocks; manufactured by Labfacility.
ANSI (USA) Connectors
A comprehensive family of ANSI colour coded miniature and standard connectors, accessories, panels, terminal and barrier blocks; manufactured by Labfacility.
JIS (Japanese) Connectors
A comprehensive family of JIS colour coded miniature and standard connectors, accessories, panels, terminal and barrier blocks; manufactured by Labfacility.
Other Connectors
Including the 3-Pin RTD miniature plug & socket, Lemo connector, and a selection of miniature and standard thermocouple connectors in the former British standards (BS) calibration.
High Temperature Thermocouple Connectors
High Temperature Thermocouple Connectors including brown 425°C plugs & sockets for all calibration types. Ceramic bodied 650°C miniature & standard plugs and sockets for IEC and ANSI calibration.
Thermocouple Connector Accessories
A large range of fittings, accessories and panels to meet the needs of any temperature interconnection applications.
Thermocouple Connectors – Technical Overview
Thermocouple connectors are specialised connectors designed to maintain the integrity of a thermocouple circuit when joining sensors, extension cable and instrumentation. Unlike standard connectors, thermocouple connectors use matching thermoelectric materials and polarised pin configurations to reduce measurement errors caused by unwanted junctions.
Labfacility thermocouple connectors are engineered for consistent performance, mechanical durability and compatibility with industry-standard thermocouple types including Type K, J, T and N. Available in miniature and standard formats across IEC, ANSI and JIS colour systems, they provide a reliable solution for both industrial and laboratory temperature measurement applications.
Selecting the Correct Thermocouple Connector
Choosing the correct thermocouple connector helps ensure accurate readings and long-term reliability.
Key considerations include:
Connector Format
Miniature thermocouple connectors offer a compact solution for instrumentation, control panels and OEM equipment, while standard connectors provide a larger housing suited to industrial environments and heavier cable assemblies.
Thermocouple Compatibility
Connectors should always match the thermocouple type to maintain correct thermoelectric continuity throughout the measurement circuit.
Colour Coding Standards
IEC, ANSI and JIS standards define pin polarity and colour identification. Selecting the correct regional standard prevents connection errors and maintains system consistency.
Environmental Conditions
Glass-filled nylon connectors are suitable for most ambient environments, while ceramic or high-temperature designs are recommended where elevated temperatures or harsh conditions are present.
IEC vs ANSI vs JIS Thermocouple Connectors
Thermocouple connectors are manufactured to internationally recognised colour standards:
- IEC – commonly used across Europe and international engineering markets
- ANSI – standardised within North American installations
- JIS – specified within Japanese equipment and global export applications
Labfacility manufactures connectors across all major standards, allowing engineers to maintain compatibility across multinational projects and existing installations.
Where Thermocouple Connectors Are Used
Thermocouple connectors allow sensors to be quickly connected, replaced or extended without altering fixed wiring. Typical applications include:
- Industrial process control and manufacturing
- Test and measurement equipment
- Research and laboratory environments
- Heating and thermal system monitoring
- OEM machinery and automation systems
Why Engineers Specify Labfacility Connectors
Since 1971, Labfacility has specialised exclusively in temperature measurement technology, supplying thermocouple connectors, sensors and accessories to engineers worldwide. By combining robust materials, consistent manufacturing and adherence to international standards, Labfacility connectors are designed to deliver dependable performance across demanding industrial and scientific applications.
Frequently Asked Thermocouple Connectors Questions
Labfacility offer IEC (European), ANSI (north American) and JIS (Japanese) colours of Thermocouple Connectors.
A full range of Miniature and Standard sized Thermocouple Connectors in all calibrations are available.
Choose from 425°C High Temperature Thermocouple Connectors or the ceramic bodied 650°C plugs and sockets.
Labfacility offer a large range of Thermocouple Connector Accessories including panels, brackets, spade terminals, clamps and supports.
Yes, all our miniature and standard range of IEC, ANSI and JIS Thermocouple Connectors are manufactured in the UK to the highest quality standards.