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1400°F Max 80 Nickel 20 Chromium Resistance Heating Ribbon

Resistance Heating Ribbon Wire

3.7

(3)

Data Sheet (PDF)

$153.95

Item# NCRR-31-100

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Quantity	Price each
1-9	$153.95
10-24	$146.25
25-49	$143.17
50-99	$137.02
100-199	$133.94
200+	$130.86

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Lead Time (If not in stock): 5 weeks

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Uniformity of Resistance
Mechanical Stability
Fine Surface Finish

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NCRR-31-100 Model Options

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Nickel-chromium wire (80Ni-20Cr) is proven to deliver outstanding performance over extended periods of time and is the same wire OMEGA™ uses in our own electrical heating elements

Resistance Wire - Current vs. Temperature
Current Carrying Capacity of Straight Nickel Chromium Wire, Approximate amperes to heat a straight, oxidized wire in quiet air to given temperature

°F		400	600	800	1000	1200	1400
°C		205	315	427	538	649	760
AWG or B & S	Inches Dia.	Amperes
15	0.057	7.2	10.0	12.8	16.1	20.0	24.5
16	0.051	6.4	8.7	10.9	13.7	17.0	20.9
17	0.045	5.5	7.5	9.5	11.7	14.5	17.6
18	0.040	4.8	6.5	8.2	10.1	12.2	14.8
19	0.036	4.3	5.8	7.2	8.7	10.6	12.7
20	0.032	3.8	5.1	6.3	7.6	9.1	11.0
21	0.0285	3.3	4.3	5.3	6.5	7.8	9.4
22	0.0253	2.9	3.7	4.5	5.6	6.8	8.2
23	0.0226	2.58	3.3	4.0	4.9	5.9	7.0
24	0.0201	2.21	2.9	3.4	4.2	5.1	6.0
25	0.0179	1.92	2.52	3.0	3.6	4.3	5.2
26	0.0159	1.67	2.14	2.60	3.2	3.8	4.5
27	0.0142	1.44	1.84	2.25	2.73	3.3	3.9
28	0.0126	1.24	1.61	1.95	2.38	2.85	3.4
29	0.0113	1.08	1.41	1.73	2.10	2.51	2.95
30	0.0100	0.92	1.19	1.47	1.78	2.14	2.52
31	0.0089	0.77	1.03	1.28	1.54	1.84	2.17
32	0.0080	0.68	0.90	1.13	1.36	1.62	1.89
33	0.0071	0.59	0.79	0.97	1.17	1.40	1.62
34	0.0063	0.50	0.68	0.83	1.00	1.20	1.41
35	0.0056	0.43	0.57	0.72	0.87	1.03	1.21
36	0.0050	0.38	0.52	0.63	0.77	0.89	1.04
37	0.0045	0.35	0.46	0.57	0.68	0.78	0.90
38	0.0040	0.30	0.41	0.50	0.59	0.68	0.78
39	0.0035	0.27	0.36	0.42	0.49	0.58	0.66
40	0.0031	0.24	0.31	0.36	0.43	0.50	0.57

Current Carrying Capacity of Ribbon
Nickel Chromium Wire, At 1200°F Approximate

Width-Inches
Thickness in Inches	1/64	1/32	1/16	3/32	1/8	3/16
Thickness in Inches	Amps
0.0063	1.56	2.89	5.5	8.2	8.2	16.6
0.0056	1.45	2.69	5.2	7.2	7.2	15.6
0.0050	1.35	2.52	4.9	6.8	6.8	14.7
0.0045	1.26	2.38	4.6	6.4	6.4	14.0
0.0040	1.18	2.23	4.1	6.0	6.0	13.1
0.0035	1.09	2.07	3.8	5.6	5.6	12.3
0.0031	1.01	1.94	3.6	5.3	5.3	11.5
0.0020	—	—	—	—	—	—
0.0015	4	—	—	—	—	—

The current values above are based on actual tests of single strands of oxidized wire mounted in quiet air and operated at 1200°F. The tables are calculated for wire having a resistivity at 1200°F and a total surface watts-density of 28 W per square inch.

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Reviews

Rated 5 out of 5 by morganelectrics from Great product, excellent service Purchased this product for the repair of a heating element. Great quality and fast shipping

Date published: 2016-11-27

Rated 5 out of 5 by Chris Woods from Exactly what I expected Omega met my expectations of getting what I ordered on time. Ordering was very easy and prompt replys on order atatus

Date published: 2022-09-06

Rated 1 out of 5 by shellback from confusing chart I ordered and received heater ribbon for my radiant heater but the charts from which I tried to determine the proper thickness of ribbon was confusing for an electrical layman such as myself. Therefore, I purchased ribbon that did not allow my heater to heat to its full power, barely warming a few inches in front of it.

Date published: 2018-12-06

Manuals & Downloads

Data Sheet (1)

NCRR-Series_spec

Compliance Certificates (1)

RoHS 2015/863 - View Certificate

Articles (1)

What is a Heat Trace System?

Questions & Answers

What is the thermal density of this wire? It states 28W/in^2 but this is a unit for thermal flux not density. Can you please clarify weather this is suppose to be a thermal density or a thermal flux?

Asked by: wanb

Thank you for connecting with Omega, The watt density on the NCRR series heating wire is 28 watts per square inch. Please let us know if there is anything else we can do to help.

Answered by: RD Engineer

Date published: 2019-11-17

Is there a coating or an insulation on the surface? Can this be used to heat up a metallic surface without shortcircuit risk?

Asked by: Fredj

Hi Fredj, Thank you for the inquiry. These do not have insulating coating. So they cannot be used on an electrically conductive surface. Our heat tapes may be useful for your application; https://www.omega.com/en-us/industrial-heaters/surface-heaters/tape-and-rope-heaters/p/STH-SST-SWH https://www.omega.com/en-us/industrial-heaters/surface-heaters/tape-and-rope-heaters/p/SRT-heaters Best regards OMEGA

Answered by: AENwlk

Date published: 2021-02-27

please can you tell me how much current and temperature it can withstand?

Asked by: mahadi46

The resistance heating wire alloy, 80% Ni, 20% Cr, has a max service temperature up to 1150 C in air. Please refer to following archived page for examples of current vs temperature in still air; https://br.omega.com/omegaFiles/heaters/pdf/NCRR_SERIES.pdf

Answered by: NorwalkAE_RS

Date published: 2019-08-27