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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 Excellent Service Great service ontime delivey eveytime I place a new PO
Date published: 2024-11-09
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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Do you have outgassing information for these connectors

Asked by: TVAC Scott
Thank you for the inquiry. Please forward this question to TEMP@OMEGA.COM. Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-08-21

Crimp tool MTC-CT does this have a mil spec equivalent?

Asked by: Bonb
Omega does not sell a MIL version of the crimp tool for the MTC product and does not have knowledge of one exists.
Answered by: ApplicationsEngineerANB
Date published: 2021-05-12

What is the Ingress Protection of this connector?

Asked by: Vic1
Thank you for your inquiry. This series connector does not carry any IP ratings.
Answered by: Application Engineer JB
Date published: 2020-12-16

If MTC-41-MC is threaded or Buoyant ?

Asked by: Prince
The MTC-41-MC has a thread ring which will engage with the MTC-41-FF to lock in place and the other side has threads to allow the backshell cable clamp to be attached.
Answered by: ApplicationsEngineerANB
Date published: 2024-08-19

Hi, Would it be possible to connect 10 K-type thermocouples to one of the 24 pin models? would this cause any significant difference in the measured temperature from the sensor?

Asked by: MattH99
Hi MattH99 Thank you for the inquiry. The 10 K thermocouples will occupy 20 of the 24 ports. That is fine. Empty ports will not affect the occupied ports. Best regards, OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-02-12

What is the maximum cable diameter for MTC-24SHL and MTC-24SHLA?

Asked by: Jozef
Thank you for your inquiry Jozef. The MTC-24-SHL and the MTC-24-SHL-A accepts 20-24 gage wire. If you have any other questions, please do not hesitate to contact us directly at 1-800-622-2378, ask for Temperature Engineering or temp@omega.com.
Answered by: Application Engineer MC
Date published: 2022-03-09

What accessories do I need to order to fully install the MTC-41-FF connector?

Asked by: Ted00
Thank you for your inquiry. We recommend the heavy-duty crimping tool part number is MTC-CT, the insertion tool part number is MTC-IT, and the removal tool part number is MTC-RT.
Answered by: Application Engineer MC
Date published: 2024-02-11

Moisture and air insulation is not specified. What IP class do these connectors meet?

Asked by: GerardKT
Hi GerardKT, Thank you for the inquiry. These MIL-C-26500 connectors are rated class R in the Mil Spec for environment resisting. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2024-07-05
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