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1-800-394-4804

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Fabricated Copper Parts

OEM Copper Parts
 OEM Copper Parts
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Storm Copper offers full custom copper fabrication
plus the convenience of online shopping for
copper and other components, including standoff
insulators, ground rods and more.

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 Copper Sheet
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 Copper Plate
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 Ground Rods and Clamps
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OEM Contact:

Sheila Stone
Customer Service Manager
240 Industrial Park Lane
Decatur, TN 37322
1-800-394-4804
FAX 423-334-3389
email: busbar@stormcopper.com

Online Store: 1-866-716-9773

For current pricing on Storm's - IN-STOCK - Copper Bar, Copper Sheet, Ground Bars, Punched Copper Connectors, Cable Jumpers and Standoff Insulators Visit our Online Store

For wholesale and volume copper metal product purchases Call Audrea Holder at 1-888-334-2177.

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Electrical Bus Bar Ampacity Chart

TABLE 1. AMPACITIES OF COPPER BUSBARS - Alloy 11000

Dimension, In.

Area Weight Per Ft in Lb.
DC Resistance at 20 C, Microhms/Ft.
30 C Rise
50 C Rise
65 C Rise
  Sq. In Circ Mils Thousands  
Skin Effect Ratio at 90 C
60 Hz Ampacity Amp*
Skin Effect Ratio at 90 C
60 Hz Ampacity Amp*
Skin Effect Ratio at 90 C
60 Hz Ampacity Amp*
1/16 x 1/2 .0312 39.7 .121
264.0
1.00
103
1.00
136
1.00
157
1/16 x 3/4 .0469 59.7 .181
175.0
1.00
145
1.00
193
1.00
225
1/16 x 1 .0625 79.6 .241
132
1.00
187
1.00
250
1.00
285
1/16 x 1 1/2 .0938 119 .362
87.7
1.00
270
1.00
355
1.00
410
1/16 x 2 .125 159 .483
65.8
1.01
345
1.01
460
1.01
530
 
1/8 x 1/2 .0625 79.6 .241
132
1.00
153
1.00
205
1.00
235
1/8 x 3/4 .0938 119 .362
87.7
1.00
215
1.00
285
1.00
325
1/8 x 1 .125 159 .483
65.8
1.01
270
1.01
360
1.01
415
1/8 x 1 1/2 .188 239 .726
43.8
1.01
385
1.01
510
1.01
590
1/8 x 2 .250 318 .966
32.9
1.02
495
1.02
660
1.02
760
1/8 x 2 1/2 .312 397 1.21
26.4
1.02
600
1.02
800
1.02
920
1/8 x 3 .375 477 1.45
21.9
1.03
710
1.03
940
1.03
1100
1/8 x 3 1/2 .438 558 1.69
18.8
1.04
810
1.03
1100
1.03
1250
1/8 x 4 .500 636 1.93
16.5
1.04
900
1.04
1200
1.04
1400
 
3/16 x 1/2 .0938 119 .362
87.7
1.00
195
1.00
260
1.00
300
3/16 x 3/4 .141 179 .545
58.4
1.01
270
1.01
360
1.01
415
3/16 x 1 .188 239 .726
43.8
1.01
340
1.01
455
1.01
520
3/16 x 1 1/2 .281 358 1.09
29.3
1.02
480
1.02
630
1.02
730
3/16 x 2 .375 477 1.45
21.9
1.03
610
1.03
810
1.03
940
3/16 x 2 1/2 .469 597 1.81
17.5
1.04
740
1.04
980
1.03
1150
3/16 x 3 .562 715 2.17
14.6
1.05
870
1.05
1150
1.04
1350
3/16 x 3 1/2 .656 835 2.53
12.5
1.07
990
1.06
1300
1.06
1500
3/16 x 4 .750 955 2.90
11.0
1.09
1100
1.08
1450
1.07
1700
 
1/4 x 1/2 .125 159 .483
65.8
1.01
240
1.01
315
1.01
360
1/4 x 3/4 .188 239 .726
43.8
1.01
320
1.01
425
1.01
490
1/4 x 1 .250 318 .966
32.9
1.02
400
1.02
530
1.02
620
1/4 x 1 1/2 .375 477 1.45
21.9
1.03
560
1.03
740
1.03
860
1/4 x 2 .500 637 1.93
16.5
1.04
710
1.04
940
1.04
1100
1/4 x 2 1/2 .625 796 2.41
13.2
1.06
850
1.06
1150
1.06
1300
1/4 x 3 .750 955 2.90
11.0
1.08
990
1.08
1300
1.07
1550
1/4 x 3 1/2 .875 1110 3.38
9.40
1.10
1150
1.09
1500
1.09
1750
1/4 x 4 1.00 1270 3.86
8.23
1.12
1250
1.11
1700
1.10
1950
1/4 x 5 1.25 1590 4.83
6.58
1.16
1500
1.15
2000
1.14
2350
1/4 x 6 1.50 1910 5.80
5.49
1.18
1750
1.17
2350
1.17
2700
 
3/8 x 3/4 .281 358 1.09
29.3
1.02
415
1.02
550
1.02
630
3/8 x 1 .375 477 1.45
21.9
1.03
510
1.03
680
1.03
790
3/8 x 1 1/2 .562 715 2.17
14.6
1.05
710
1.04
940
1.04
1100
3/8 x 2 .750 955 2.90
11.0
1.08
880
1.08
1150
1.07
1350
3/8 x 2 1/2 .938 1190 3.62
8.77
1.12
1050
1.10
1400
1.09
1600
3/8 x 3 1.12 1430 4.35
7.35
1.15
1200
1.14
1600
1.13
1850
3/8 x 3 1/2 1.31 1670 5.06
6.38
1.18
1350
1.16
1800
1.15
2100
3/8 x 4 1.50 1910 5.80
5.49
1.20
1500
1.19
2000
1.18
2350
3/8 x 5 1.88 2390 7.26
4.38
1.24
1800
1.23
2400
1.22
2800
3/8 x 6 2.25 2860 8.69
3.66
1.27
2100
1.26
2800
1.24
3250
 
1/2 x 1 .500 637 1.93
16.5
1.04
620
1.04
820
1.04
940
1/2 x 1 1/2 .750 955 2.90
11.0
1.08
830
1.08
1100
1.07
1250
1/2 x 2 1.00 1270 3.86
8.23
1.12
1000
1.11
1350
1.10
1550
1/2 x 2 1/2 1.25 1590 4.83
6.58
1.16
1200
1.15
1600
1.14
1850
1/2 x 3 1.50 1910 5.80
5.49
1.20
1400
1.19
1850
1.18
2150
1/2 x 3 1/2 1.75 2230 6.76
4.70
1.24
1550
1.22
2100
1.21
2400
1/2 x 4 2.00 2550 7.73
4.11
1.26
1700
1.25
2300
1.24
2650
1/2 x 5 2.50 3180 9.66
3.29
1.32
2050
1.30
2750
1.29
3150
1/2 x 6 3.00 3820 11.6
2.74
1.36
2400
1.34
3150
1.33
3650
1/2 x 8 4.00 5090 15.5
2.06
1.42
3000
1.40
4000
1.39
4600

 
 

 

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