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Wire Gauge Guide

Wire Gauge Conversion Chart
 

Total current
draw in Amperes

6 Volt12 Volt18 Volt24 Volt
0-10 A24 ga18 ga14 ga14 ga
10-20 A18 ga14 ga12 ga12 ga
21-35 A14 ga12 ga10 ga8 ga
36-50 A12 ga10 ga8 ga8 ga
51-65 A10 ga8 ga8 ga6 ga
66-85 A8 ga6 ga6 ga4 ga

 

Copper Wire
GaugeDia in (mm)Wt oz/ft (g/m)Ohms/mImax >2 minImax <30sec
160.051 (1.29)0.13 (11.64)0.0131420
180.040 (1.02)0.08 (7.32)0.0211016
200.032 (0.81)0.05 (4.60)0.033710
220.025 (0.65)0.03 (2.90)0.05358
240.020 (0.51)0.02 (1.80)0.0843.55
260.016 (0.40)0.012 (1.15)0.1341.53
280.013 (0.32)0.008 (0.72)0.21311.5
300.010 (0.25)0.005 (0.45)0.3390.51
320.008 (0.20)0.003 (0.29)0.539  
340.006 (0.16)0.002 (0.18)0.856  
360.005 (0.13)0.001 (0.11)1.36  
380.004 (0.10)0.0008 (0.07)2.16  

Recommended current (amp) and Gauge for different voltages.

SWG = Imperial Standard Wire Gauge
AWG = American Wire Gauge
B&S = Brown & Sharpe

S.W.G.Wire NumberA.W.G. or B&SA.W.G. Metric

(Inches)

(Gauge)

(Inches)

(MM)

0.5000000000 (7/0)...................................
0.464000000 (6/0)0.580000............
0.43200000 (5/0)0.516500............
0.4000000 (4/0)0.46000011,684
0.372000 (3/0)0.40964210,404
0.34800 (2/0)0.3647969,266
0.3240 (1/0)0.3248618,252
0.30010.2892977,348
0.27620.2576276,543
0.25230.2294235,827
0.23240.20435,189
0.212050.18194,621
0.192060.16204,115
0.176070.14433,665
0.160080.12853,264
0.144090.11442,906
0.1280100.10192,588
0.1160110.09072,304
0.1040120.08082,052
S.W.G.Wire NumberA.W.G. or B&SA.W.G. Metric
0.0920130.07201,829
0.0800140.06411,628
0.0720150.05711,450
0.0640160.05081,291
0.0560170.04531,150
0.0480180.04031,024
0.0400190.03590,9119
0.0360200.03200,8128
0.0320210.02850,7239
0.0280220.02530,6426
0.0240230.02260,5740
0.0220240.02010,5106
0.0200250.01790,4547
0.0180260.01590,4038
0.0164270.01420,3606
0.0148280.01260,3200
0.0136290.01130,2870
0.0124300.01000,2540
0.0116310.00890,2261
0.0108320.00800,2032
0.0100330.00710,1803
S.W.G.Wire NumberA.W.G. or B&SA.W.G. Metric
0.0092340.00630,1601
0.0084350.00560,1422
0.0076360.00500,1270
0.0068370.00450,1143
0.0060380.00400,1016
0.0052390.00350,0889
0.0048400.00310,0787
0.0044410.00280,0711
0.0040420.00250,0635
0.0036430.00220,0559
0.0032440.00200,0508
0.0028450.00180,0457
0.0024460.00160,0406
0.0020470.00140,0350
0.0016480.00120.0305
0.0012490.00110,0279
0.0010500.00100,0254
 510.000880,0224
 520.000780,0198
 530.000700,0178
 540.000620,0158
 550.000550,0140
 560.000490,0124

SWG = Imperial Standard Wire Gauge (British legal standard)
AWG = American Wire Gauge
B&S = Brown & Sharpe

 Building Packs


Check out our guide to making battery packs.

Items you might need in constructing your own packs:
 Battery News

Energybus 2500mAh Nickel Metal Hydride Battery
New EnergyBus 2500mAh(model AA2500HJ)

Super Capacity consumer
cells now available. 900mAh
AAA and 2/3A1100HP with
performance comparable
to KANS
 
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