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Multi-pin Thermocouple Connector Bodies

Multipin Thermocouple Connectors Air and Moisture Resistant

$222.53

Item# MTC-55-FC

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $222.53
10-49 $211.40
50-99 $202.50
100-999 $189.15
1000-4999 $178.02
5000+ $166.90

In stock

Lead Time (If not in stock): 50 weeks
Multipin Thermocouple Connectors Air and Moisture Resistant MTC-55-FC MTC-55-FC
  • Thermocouple Alloy Pins and Sockets
  • Compatible with MTC Precision CNC Machine Contacts or HPC Economical Design Contacts
  • Air and Moisture Resistant Connection
  • Removeable Crimp Contacts

MTC-55-FC Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Connector Gender
No. of Pins/Sockets
Additional Features
Sensing Type
Connector Style
Temperature Unit
Temperature Min
Temperature Max
Temperature Range


  • Maximum Wire Size 24 AWG
  • Minimum Wire Size 20 AWG
  • Wire Type Stranded
OMEGA™ sturdy multi-pin connectors provide an efficient means of joining multiwire thermocouple cables. They can be used with multiple OMEGA extension stranded wire for rapid, convenient connections and for dismantling an apparatus without handling individual sensors. When used with MTC Series pins, the connector design utilizes a combination of resilient and rigid dielectric insulators to eliminate internal air voids and prevent the passage of air and moisture into or through the connector. Connectors can withstand ambient temperatures to 200°C (392°F), contributing to an extended connector life.

Important Notes
1. MS Standard Assembly Tools are required to crimp and assemble connectors properly. Order with first purchase.
2. Match pins and sockets to thermocouple alloys–Example: A 12-cavity connector carries 6 thermocouple circuits (pairs) requiring: 6 positive alloy pins or sockets and 6 negative alloy pins or sockets per body.
3. Order bodies in mating pairs. Style MC mates with both style FF and style FC.
4. Backshell cable clamps are recommended with each cord style connector.

Please review Product Spec Sheet pdf for complete product specifications on the MTC Connectors, MTC Precision Contacts, and HPC Economical Contacts


New M12 Connector with Thermocouple PIns and Sockets
Omega has a new connector which can be wired for up to 2 thermocouples with a secure M12 connection. To see our New M12 connectors visit M12-FM_Series


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Rated 3 out of 5 by from Could be 5 stars BUT... I like these connectors. They do what they are supposed to. But, trying to figure out what you need is difficult. It would be better if you offered a preconfigured kit with all you need. And, this stuff is too expensive.
Date published: 2020-09-24
Rated 5 out of 5 by from Multipin Thermocouple Connectors Great product will buy again and come back for other needs from Omega
Date published: 2022-03-13
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What is the criteria used to validate the MTC-CT crimping tool? Is there a pull test limit or crimp indent location range verification? If the crimp indent is not centered between the inspection hole and the bell mouth of the contact is this acceptable?

Asked by: Crimpy
Thank you for your inquiry Crimpy. Due to the complexity of your question, please send an email to temp@omega.com and one of our engineers will assist you in finding this information.
Answered by: Application Engineer SP
Date published: 2022-09-29

Some of these connectors had yellow bands and some have red bands. Some have a darker sealing material and other with a lighter red-orange color. Is there a significants to the difference in colors? Will this work with the same contact?

Asked by: Crimpy
Thank you for the inquiry. There is no significance to the different colors. They work with the same contacts HPC and MTC series; https://assets.omega.com/pdf/connectors/thermocouple-and-rtd-connectors/HPC_CONTACTS.pdf https://assets.omega.com/pdf/connectors/thermocouple-and-rtd-connectors/MTC.pdf Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-07-27

What is the radiation resistance of the connector insulation material? What is the material?

Asked by: Scott69
Thank you for your inquiry. This product is made out of aluminum which makes it UV Radiation resistant.
Answered by: Application Engineer CB
Date published: 2023-05-30

Is there a drawing of the MTC-55-FF connector. No sizes listed for hole or connector outline dimensions. Currently use the MTC-24-FF so need to know dimensions to change to higher pin count. Also there are HTC alumel chromel contacts ad also MTC Alumel

Asked by: DC Kazoo
The dimensions of the MTC connectors for all pin counts can be found in the manual which is linked from the product page.
Answered by: ApplicationsEngineerANB
Date published: 2023-10-11

Hi There, Do you have 3D CAD models for MTC connectors available for free download? If no, do you have spec drawings for the same? Any info that can be used to create/use 3D model in CAD assemblies will be appreciated and useful for the future buyers

Asked by: IanCho
Thank you for your inquiry. Unfortunately, we do not provide CAD, Step Files, or any 3D model of this product. We only provide 2-Dimensional Drawings located on the specification sheet and/or manual.
Answered by: Application Engineer CB
Date published: 2023-10-11

I have an process oven mapping application. Do you have a high temperature connector good for up to 400 degrees C? # of pins could vary, have 36 thermocouples in two ovens. (4)-9's or (3)'s would work.

Asked by: Steve55
Omega does not have a multipin connector that is suitable for use in 400C environments. There is a high temperature jack panel series SHXJP that can be used well above 400 C with SHX ceramic connectors.
Answered by: ANB ENG
Date published: 2020-10-28

We're using the MTC-2-FF in line flanged connector. Are there 'dummy' connector pins to use in cavities not being used so it stays air tight?

Asked by: StanS
We do not carry dummy connector pins for this series, sorry about that.
Answered by: Dennis J
Date published: 2019-08-14
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