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.

Industrial RTD (PT100) Probes with Cast Iron Protection Head

RTD Probe with Cast Iron Protection Head

$155.05

Item# PR-12E-3-100-1/8-6

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $155.05
5-9 $147.30
10-24 $144.20
25-49 $137.99
50-99 $134.89
100+ $131.79

In stock

Lead Time (If not in stock): 7 weeks
RTD Probe with Cast Iron Protection Head PR-12E-3-100-1/8-6 PR-12E-3-100-1/8-6
  • Low temperature range: -50 to 250°C (-58 to 482°F)
  • High temperature range: -50 to 450°C (-58 to 842°F)
  • Extreme temperature range: -200 to 600°C (-328 to 1112°F)
  • Corrosion-resistant cast iron protection head

PR-12E-3-100-1/8-6 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 or click the CONFIGURE button to build your own.

Process Temperature Range
Nominal Output
Number of Wires
Probe Diameter
Probe Length
Cable Insulation
Wire Gauge
Cable Length
Termination Connection Type
Additional Feature
Category
Sensor Application
Process Connection Size
Accuracy
Sheath Material


  • Accuracy Class A from -100°C to 450°C (-148 to 842°F); Class B otherwise, per IEC 60751
  • Cold-End Max Temperature Low (L), 100°C (212°F); High (H) and Extreme (E), 250°C (482°F)
  • Dimensions Standard diameters of 1/8”, 3/16”, and 1/4” ; variable lengths
  • Ingress Protection IP67 (with exception of “High” (10H) type)
  • Nominal Resistance Curve Choice of PT100Ω or PT1000Ω
  • Process Temperature Range -200 to 600°C (-328 to 1112°F)
  • Protection head Cast Iron
  • Wire Length / Terminations Screw Terminal

Our PR-12 series probe with chemical-resistant cast iron protection head and screw-on cap includes PT100 Ω platinum RTD element or PT1000 RTD element, 1/2" NPT mounting threads and sheath of 316 stainless steel. When properly sized, these can go directly into and bottom out in a thermowell. All probes include a screw terminal block for easy connection of insulated copper extension wire. Replacement probes (without head assembly) are available as well as a "spring-loading" option which allows for the probe to bottom out in a thermowell for quicker and more accurate response. Inside dimensions for the cast iron head: Diameter: 2.2 inches; Height: 2.0 inches

loading all models
loading all reviews
Rated 5 out of 5 by from Good Quality Good quality. As advertised. Will work for our needed application.
Date published: 2023-05-31
Rated 5 out of 5 by from Great product at a great price! Received product faster than expected. Product does what is expected.
Date published: 2022-10-27
Rated 5 out of 5 by from Assembly for Client- Food Processing Parts for an assembly are shipped in a timely manner. Our client enjoys the ease of one part on their shelf as a storeroom item.
Date published: 2022-01-20
  • y_2024, m_7, d_13, h_6
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_PR-12E-3-100-1-8-6, 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, 17ms
  • REVIEWS, PRODUCT
loading all QA

Need a wiring diagram for this PR-12E-3-100-1/4-6.

Asked by: Eddy B
There isn't a wire diagram to send so the best thing is to call the Temperature group at 800-872-9436 and have an Engineer explain the connections.
Answered by: ApplicationsEngineerANB
Date published: 2024-03-25

What are the dimensions of the cast iron RTD head?

Asked by: bzachry
Hi bzachry, Thank you for the inquiry. For details on the protection head; https://assets.omega.com/pdf/hardware/protection-heads/NB_HEPTX_NXT_HEADS.pdf Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-06-21

Is the spring-loaded RTD sealed from the process or is a thermowell required to prevent leaking into the cast iron head? PR-12-2-100-1/4-12-E-SL-DUAL

Asked by: RTDsAreMyFavorite
Thank you for your inquiry. Spring-loaded probes are not sealed and would require a thermowell to seal probe to the process.
Answered by: Application Engineer JB
Date published: 2021-09-15

Are the protection heads certified for any hazardous environments, say Class 1 Div 2. Where can I find information on the heads such as UL Listing?

Asked by: Tom S
Hi Tom S, Thank you for the inquiry. We do not offer assembly rated Class 1 Div 2. For questions on the head alone please forward request to TEMP@OMEGA.COM. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-10-07

is this RTD are 2-wire or 3-wire?

Asked by: ankur
Thank you for your inquiry. The PR-12 series RTD is available with either 3 wire or a 4 wire configuration.
Answered by: Application Engineer SP
Date published: 2023-08-01

Good day, what is the max operating pressure ?

Asked by: JHax
Hi JHax, Thank you for the inquiry. We do not provide a pressure rating this probe series due to the temperatures they may be exposed to. For pressurized applications please consider use of thermowell. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2024-07-05
  • y_2024, m_7, d_13, h_6CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_6
  • loc_en_US, sid_PR-12E-3-100-1-8-6, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 58ms
  • QUESTIONS, PRODUCT
en-US
en
Save Configuration