Voltage Drop Chart

Amps #14 #12 #10 #8 #6 #4 #2 #1/0 #2/0 #4/0
1 45 70 115 180 290 456 720 - - -
2 22.5 35 57.5 90 145 228 360 580 720 1060
4 10 17.5 27.5 45 72.5 114 180 290 360 580
6 7.5 12 17.5 30 47.5 75 120 193 243 380
8 5.5 8.5 11.5 22.5 35.5 57 90 145 180 290
10 4.5 7 11.5 18 28.5 45.5 72.5 115 145 230
15 3 4.5 7 12 19 30 48 76.5 96 150
20 2 3.5 5.5 9 14.5 22.5 36 57.5 72.5 116
25 1.8 2.8 4.5 7 11.5 18 29 46 58 92
30 1.5 2.4 3.5 6 9.5 15 24 38.5 48.5 77
40 - - 2.8 4.5 7 11.5 18 29 36 56
50 - - 2.3 3.6 5.5 9 14.5 23 29 46
100 - - - - 2.9 4.6 7.2 11.5 14.5 23
150 - - - - - - 4.8 7.7 9.7 15
200 - - - - - - 3.6 5.8 7.3 11

  Maximum Ampacity for Copper and Aluminum Wire

Wire Size Copper Aluminum
14 25 -
12 30 25
10 40 35
8 55 45
6 75 60
4 95 75
2 130 100
1 150 115
1/0 170 135
2/0 265 150
4/0 360 205

NEC allows rounding up cable ampacity to next standard fuse or breaker.

  B000I4HH04
Calculated
Industries 5065 ElectriCalc Pro Measurement Conversion Calculator

 

 

Dog Toys Made in the USA



 

 

 

 Made in America Support our Troops

100 % Recycled Material                         Keeping an eye on the future   

Underwriters Lab  Listed
 

                                                                Copyright © 2004-2009 Lindenbaum Electrical Company Inc. All rights reserved