Nichrome Wire Calculator: Difference between revisions

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=Examples=
=Examples=
*10m of 22 ga wire will draw 370W at 120V - to attain a temperature of 500F. This may be a good 12" heat bed.
*12' of 26 ga draws 450 Watts.
*15' of 24 ga wire will draw
*This was acceptable, but burns out thermistors if placed directly on heater.


=Links=
=Links=
*[[120V Heatbed]]
*[[120V Heatbed]]

Revision as of 20:22, 25 November 2019

Procedure

  • Select convenient length
  • Select max temp - such as 550C = 1000F
  • Match gauge to proper voltage drop of 120V
  • Find out max gauge that is within current limits (15A) and has correct voltage
  • Limit for 15A outlet is 1800W

Sample:

Samplenichrome.png

  • Remains within 15 amps
  • Shows correct voltage
  • Max temp - select it to match voltage - you determine max possible temp and judge whether it will burn out your system if you have temperature sensitive components
  • Note that Gauge 17 is the max fatness that stays within 1800W
  • Note: 22' of 18 ga gets us right at 120V, and 1560W. Good. But temperature of 1260F is a little high.

Nichrome2.png

Examples

  • 12' of 26 ga draws 450 Watts.
  • This was acceptable, but burns out thermistors if placed directly on heater.

Links