Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Nickel-Chromium Heater Wire - Temperature Rise vs. Amps

Electric resistance vs. temperature rise for Nickel-Chromium electrical heater wire.

Sponsored Links

Nickel-Chromium electric resistance wires:

Nickel-Chromium Heater Wire - Temperature Rise vs. Amps
SWGDiameterNickel–chromium
(mm)(in)(ohm/m)Current (A) to
maintain temperature rise
500 °C1000 °C
12 2.642 0.104 0.197 38 78
14 2.032 0.080 0.333 26 53
16 1.626 0.064 0.520 19 40
18 1.219 0.048 0.92 13 27
20 0.914 0.036 1.65 8.5 18
22 0.711 0.028 2.72 6.3 13
24 0.559 0.022 4.40 4.5 9.5
26 0.457 0.018 6.60 3.5 7.0
28 0.376 0.0148 9.7 2.7 5.5
30 0.315 0.0124 13.9 2.2 4.5
32 0.274 0.0108 18.3 1.9 3.5
34 0.234 0.0092 25.2 1.6 3.0
36 0.193 0.0076 37.0 1.3 2.3
38 0.152 0.0060 59.0 1.0 1.7
40 0.122 0.0048 92 0.8 1.4
42 0.102 0.0040 133 0.65 1.1
44 0.0813 0.0032 208
46 0.0610 0.0024 370
48 0.0406 0.0016 835
50 0.0254 0.0010 2130
  • SWG - Imperial Standard Wire Gauge for sheet metal and wire

Example - Electric heater

Calculate the length of a nickel-chromium gauge 18 wire in an electric heater with power 2000 W, 230 V supply and max. wire temperature 500oC.   

The current required to produce 2000 W can be calculated with Ohm's law as

P = U I

   or

I = P / U

  = (2000 W) / (230V)

  = 8.7 A

The max. current in the 18 gauge wire with max. temperature 500oC is 13 A and the heat can be produced in a single wire.

The total resistance in the heating wire can with Ohm's law be calculated as

R = U / I

   = (230 V) / (8.7 A)

   = 26.4 ohm

Since the resistance of the wire is 0.92 ohm/m the length of the wire can be calculated as

l = (26.4 ohm) / (0.92 ohm/m)

  = 28.7 m

Sponsored Links

Related Topics

  • Electrical

    Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.

Related Documents

Sponsored Links

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

Citation

This page can be cited as

  • The Engineering ToolBox (2014). Nickel-Chromium Heater Wire - Temperature Rise vs. Amps. [online] Available at: https://www.engineeringtoolbox.com/electric-resistance-wires-d_1890.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































2.19.10

Sponsored Links
.