Skip to search Skip to main content Skip to navigation

Call us at 1-888-826-6342

We noticed you are from . Visit your local site for regional offers and live support.

Round Hole Thermocouple Panel Jack Connectors

Standard and Miniature Size Panel Jacks


Item# RMJ-NI-R

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $5.51
10-49 $5.07
50-99 $4.79
100-999 $4.57
1000-4999 $4.30
5000+ $4.02

In stock

Lead Time (If not in stock): 3 weeks
Standard and Miniature Size Panel Jacks RMJ-NI-R RMJ-NI-R
  • Standard Jack Accepts All Industry Standard Size Male Connectors
  • Standard Jack Mounts in 22.0 mm (.87 in) Round or “D” Punch Holes
  • Miniature Jack Accepts All Industry Miniature Size Male Connectors
  • Miniature Jack Mounts in 16.0 mm (.63 in) Round or “D” Punch Holes

RMJ-NI-R Model Options

View all models

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.

Thermocouple Type
Number of Connector Rows
Connector Type
Face Type
Number of Junction Box Positions
Color Code Standard


No special tooling is required for installation. Just drill or punch a round hole in your panel and tighten the supplied nut. Ideal for single-circuit applications where the connector must blend with existing instrumentation. Thermocouple circuits can be added to existing panels with only minimal interruption of operations. Thermocouple grade alloys used to form the contacts preserve the accuracy of the circuit even in changing ambient temperatures. 
loading all models
loading all reviews
Rated 5 out of 5 by from Great Little Jack High quality Jack, use them to interface monitors for product under test. Both for temperature cycling and thermal vacuum testing
Date published: 2017-04-07
Rated 5 out of 5 by from Great Product We depend on these components to make and monitor our Glass, Oil, CNG, and Alloy burners. They always show up in perfect working condition. The only complaint I have is the lead time, to fulfill orders.
Date published: 2023-04-13
Rated 2 out of 5 by from wrong mounting hole spec The connectors themselves were great, however the "mounts in 16mm hole" was completely wrong. Standard size mounts in 22mm, mini size mounts in 16mm. I knew better as I've ordered the standard size connecters many times, but thought they might have redesigned them so accordingly I specified the receiving panel with 16mm mounting holes. When the connectors arrived we had to drill out each location and I was rather aggravated. Great connector, just use a 22mm mounting hole.
Date published: 2023-03-01
Rated 5 out of 5 by from Great connectors Omega is our preferred supplier for thermocouples and thermocouple connectors. Always durable and precise.
Date published: 2022-03-31
Rated 5 out of 5 by from Materials Associate Great products and pricing. Timely deliveries as well.
Date published: 2021-02-15
Rated 5 out of 5 by from Standard and Miniature Size Panel Jacks Mounts Great product. WE Use a lot of these. Consistently good quality.
Date published: 2020-12-31
Rated 5 out of 5 by from Great quality at a great price I have known about these sockets for several years and am reminded how great they are every time I reorder them.
Date published: 2018-02-18
  • y_2024, m_7, d_20, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_7
  • loc_en_US, sid_RMJ-NI-R, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 5ms
loading all QA

Is there a 3D model available to download?

Asked by: Diego M
Thank you for your inquiry. We do not provide a 3D model for download. If you require a 2 dimensional drawing, please email request to
Answered by: Application Engineer JB
Date published: 2021-05-26

Do you have a recommended wire lug for connecting to this? Larger t/c extension wire is hard to land to these small screws.

Asked by: Jaymes
Thank you for your inquiry. Unfortunately, the RMJ are not constructed to be used with spade lugs. 24 AWG is the largest size that can be used.
Answered by: Application Engineer CB
Date published: 2024-01-17

What is the NEMA rating or IP rating of these panel mount receptacles?

Asked by: Joe F
Hi, thanks for connecting with Omega. The MH-RMJ-1 receptacles do not have ratings. Please email us at anytime, if you have any further questions. Thank you
Answered by: Jane
Date published: 2019-05-31

Hello, To whom it may concern Part in question: RMJ-K-R Do you have a Cad file (SolidWorks Part drawing) for this part? Thanks

Asked by: Pacua
Thank you for your inquiry Pacua. We do not provide a 3D/CAD model for download. We only have a 2D drawing. Please refer to page 3 of this pdf for RMJ connector dimensions:
Answered by: Application Engineer SP
Date published: 2022-09-07
  • y_2024, m_7, d_19, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_4
  • loc_en_US, sid_RMJ-NI-R, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 11ms
Save Configuration