Maximum Exposure Temperature:
- -RWK: 356°F (180°C)
- -RWF: 1100°F (593°C)
- -RWG: 356°F (180°C)
Insulation Type:
- -RWK: 1 mil polyimide film with 50% overlap
- -RWF: Two layers of 8 mil diameter strands of fiberglass yarn
- -RWG: 1 mil polyimide film with 50% overlap
Insulation Thickness: 2 mil (RWK & RWG)
Dielectric Strength:
- -RWK & RWF: Over 2000 volts (Suitable for use on Conductive Surfaces)
- -RWG: Over 2000 volts (Suitable for use on Conductive Surfaces)
PTFE Optional Coating: RWF & RWG provide anti-fraying and abrasion resistance
360° Grounded Braid: RWG Only - wraps completely around heating element for maximum safety
Approvals:
RWK: Rated to 482°F (250°C), 600 VAC, AWM 5417
RWG: Rated to 482°F (250°C), 600 VAC, AWM 5418
RWK: Rated to 482°F (250°C), 600 VAC, AWM 5417RWG: Rated to 482°F (250°C), 600 VAC, AWM 5418
Approvals valid only when used with appropriate heating cable and installation accessories, and installed in accordance with all applicable instructions, codes, and regulations.
Ordering Information
When specifying resistance wire, it is important to consider all aspects of the application and of the wire. For example, if the application is on a conductive surface, wire type RWF should not be chosen. Also, if the application requires constant temperatures of 350°F (176°C), then alloy K should not be chosen. Call your local distributor or BriskHeat direct for application assistance.
Alloy Specifications
|
Alloy Type |
Gauge / Strand |
Maximum Exposure Temperature |
Ohms / Ft / Strand |
Composition |
|
A |
43 |
1650°F (899°C) |
175.00 |
71.75% Fe, 22% Cr, 5.75% Al, 0.5% Cu |
|
B |
41 |
1650°F (899°C) |
115.31 |
71.75% Fe, 22% Cr, 5.75% Al, 0.5% Cu |
|
C |
40 |
1650°F (899°C) |
88.18 |
71.75% Fe, 22% Cr, 5.75% Al, 0.5% Cu |
|
D |
40 |
1650°F (899°C) |
70.24 |
60% Ni, 15% Cr, 25% Fe |
|
E |
39 |
1650°F (899°C) |
55.10 |
60% Ni, 15% Cr, 25% Fe |
|
F |
37 |
1650°F (899°C) |
33.33 |
60% Ni, 15% Cr, 25% Fe |
|
G |
37 |
450°F (232°C) |
14.52 |
55% Cu, 45% Ni |
|
H |
37 |
1000°F (538°C) |
8.88 |
78% Cu, 22% Ni |
|
I |
37 |
797°F (425°C) |
4.44 |
88% Cu, 12% Ni |
|
K |
36 |
300°F (149°C) |
0.43 |
96% Cu (core), 4% Ni (cladding) |
Resistance per Foot
|
Number of Strands |
Alloy Type |
|||||||||
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
K |
|
|
5 |
35.000 |
23.062 |
17.636 |
14.048 |
11.020 |
6.666 |
2.904 |
1.776 |
0.888 |
0.086 |
|
6 |
29.167 |
19.218 |
14.697 |
11.707 |
9.183 |
5.555 |
2.420 |
1.480 |
0.740 |
0.072 |
|
7 |
25.000 |
16.473 |
12.597 |
10.034 |
7.871 |
4.761 |
2.074 |
1.269 |
0.634 |
0.061 |
|
8 |
21.875 |
14.414 |
11.023 |
8.780 |
6.888 |
4.166 |
1.815 |
1.110 |
0.555 |
0.054 |
|
9 |
19.444 |
12.812 |
9.798 |
7.804 |
6.122 |
3.703 |
1.613 |
0.987 |
0.493 |
0.048 |
|
10 |
17.500 |
11.531 |
8.818 |
7.024 |
5.510 |
3.333 |
1.452 |
0.888 |
0.444 |
0.043 |
|
11 |
15.909 |
10.483 |
8.016 |
6.385 |
5.009 |
3.030 |
1.320 |
0.807 |
0.404 |
0.039 |
|
12 |
14.583 |
9.609 |
7.348 |
5.853 |
4.592 |
2.778 |
1.210 |
0.740 |
0.370 |
0.036 |
|
13 |
13.462 |
8.870 |
6.783 |
5.403 |
4.238 |
2.564 |
1.117 |
0.683 |
0.342 |
0.033 |
|
14 |
12.500 |
8.236 |
6.299 |
5.017 |
3.936 |
2.381 |
1.037 |
0.634 |
0.317 |
0.031 |
|
15 |
11.667 |
7.687 |
5.879 |
4.683 |
3.673 |
2.222 |
0.968 |
0.592 |
0.296 |
0.029 |
|
16 |
10.938 |
7.207 |
5.511 |
4.390 |
3.444 |
2.083 |
0.908 |
0.555 |
0.278 |
0.027 |
|
17 |
10.294 |
6.783 |
5.187 |
4.132 |
3.241 |
1.961 |
0.854 |
0.522 |
0.261 |
0.025 |
|
18 |
9.722 |
6.406 |
4.899 |
3.902 |
3.061 |
1.852 |
0.807 |
0.493 |
0.247 |
0.024 |
|
19 |
9.211 |
6.069 |
4.641 |
3.697 |
2.900 |
1.754 |
0.764 |
0.467 |
0.234 |
0.023 |
|
20 |
8.750 |
5.766 |
4.409 |
3.512 |
2.755 |
1.667 |
0.726 |
0.444 |
0.222 |
0.022 |
|
21 |
8.333 |
5.491 |
4.199 |
3.345 |
2.624 |
1.587 |
0.691 |
0.423 |
0.211 |
0.020 |
|
22 |
7.955 |
5.241 |
4.008 |
3.193 |
2.505 |
1.515 |
0.660 |
0.404 |
0.202 |
0.020 |
|
23 |
7.609 |
5.013 |
3.834 |
3.054 |
2.396 |
1.449 |
0.631 |
0.386 |
0.193 |
0.019 |
|
24 |
7.292 |
4.805 |
3.674 |
2.927 |
2.296 |
1.389 |
0.605 |
0.370 |
0.185 |
0.018 |
|
25 |
7.000 |
4.612 |
3.527 |
2.810 |
2.204 |
1.333 |
0.581 |
0.355 |
0.178 |
0.017 |
|
26 |
6.731 |
4.435 |
3.392 |
2.702 |
2.119 |
1.282 |
0.558 |
0.342 |
0.171 |
0.017 |
|
27 |
6.481 |
4.271 |
3.266 |
2.601 |
2.041 |
1.234 |
0.538 |
0.329 |
0.164 |
0.016 |
|
28 |
6.250 |
4.118 |
3.149 |
2.509 |
1.968 |
1.190 |
0.519 |
0.317 |
0.159 |
0.015 |
|
29 |
6.034 |
3.976 |
3.041 |
2.422 |
1.900 |
1.149 |
0.501 |
0.306 |
0.153 |
0.015 |
|
30 |
5.833 |
3.844 |
2.939 |
2.341 |
1.837 |
1.111 |
0.484 |
0.296 |
0.148 |
0.014 |
Note: Resistance tolerance is ±8%