[h=3]
Wire Size and Amp Ratings [/h][TABLE="class: orange orange1, width: 579"]
[TR]
[TH="width: 108"]
[/TH]
[TH="width: 260, colspan: 3"]Copper[/TH]
[TH="width: 204, colspan: 2"]
Aluminum[/TH]
[/TR]
[TR]
[TH] [/TH]
[TH="width: 86"]60°C (140°F)
[/TH]
[TH="width: 85"]75°C (167°F)
[/TH]
[TH="width: 89"]90°C (194°F)
[/TH]
[TH="width: 97"]75°C (167°F)
[/TH]
[TH="width: 107"]90°C (194°F)
[/TH]
[/TR]
[TR]
[TH]
Wire Guage Size[/TH]
[TH="width: 86"]NM-B, UF-B[/TH]
[TH="width: 85"]THW, THWN,
SE, USE, XHHW
[/TH]
[TH="width: 89"]THWN-2, THHN,
XHHW-2, USE-2
[/TH]
[TH="width: 97"]THW, THWN,
SE, USE, XHHW
[/TH]
[TH="width: 107"]XHHW-2, THHN,
THWN-2[/TH]
[/TR]
[TR]
[/TR]
[TR]
[TD]
14
[/TD]
[TD]
15
[/TD]
[TD]
15
[/TD]
[TD]
15
[/TD]
[TD]
---
[/TD]
[TD]
---
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
12
[/TD]
[TD]
20
[/TD]
[TD]
20
[/TD]
[TD]
20
[/TD]
[TD]
15
[/TD]
[TD]
15
[/TD]
[/TR]
[TR]
[TD]
10
[/TD]
[TD]
30
[/TD]
[TD]
30
[/TD]
[TD]
30
[/TD]
[TD]
25
[/TD]
[TD]
25
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
8
[/TD]
[TD]
40
[/TD]
[TD]
50
[/TD]
[TD]
55
[/TD]
[TD]
40
[/TD]
[TD]
45
[/TD]
[/TR]
[TR]
[TD]
6
[/TD]
[TD]
55
[/TD]
[TD]
65
[/TD]
[TD]
75
[/TD]
[TD]
50
[/TD]
[TD]
60
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
4
[/TD]
[TD]
70
[/TD]
[TD]
85
[/TD]
[TD]
95
[/TD]
[TD]
65
[/TD]
[TD]
75
[/TD]
[/TR]
[TR]
[TD]
3
[/TD]
[TD]
85
[/TD]
[TD]
100
[/TD]
[TD]
110
[/TD]
[TD]
75
[/TD]
[TD]
85
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
2
[/TD]
[TD]
95
[/TD]
[TD]
115
[/TD]
[TD]
130
[/TD]
[TD]
90
[/TD]
[TD]
100
[/TD]
[/TR]
[TR]
[TD]
1
[/TD]
[TD]
---
[/TD]
[TD]
130
[/TD]
[TD]
150
[/TD]
[TD]
100
[/TD]
[TD]
115
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
1/0
[/TD]
[TD]
---
[/TD]
[TD]
150
[/TD]
[TD]
170
[/TD]
[TD]
120
[/TD]
[TD]
135
[/TD]
[/TR]
[TR]
[TD]
2/0
[/TD]
[TD]
---
[/TD]
[TD]
175
[/TD]
[TD]
195
[/TD]
[TD]
135
[/TD]
[TD]
150
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
3/0
[/TD]
[TD]
---
[/TD]
[TD]
200
[/TD]
[TD]
225
[/TD]
[TD]
155
[/TD]
[TD]
175
[/TD]
[/TR]
[TR]
[TD]
4/0
[/TD]
[TD]
---
[/TD]
[TD]
230
[/TD]
[TD]
260
[/TD]
[TD]
180
[/TD]
[TD]
205
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
250
[/TD]
[TD]
---
[/TD]
[TD]
255
[/TD]
[TD]
290
[/TD]
[TD]
205
[/TD]
[TD]
230
[/TD]
[/TR]
[TR]
[TD]
300
[/TD]
[TD]
---
[/TD]
[TD]
285
[/TD]
[TD]
320
[/TD]
[TD]
230
[/TD]
[TD]
255
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
350
[/TD]
[TD]
---
[/TD]
[TD]
310
[/TD]
[TD]
350
[/TD]
[TD]
250
[/TD]
[TD]
280
[/TD]
[/TR]
[TR]
[TD]
500
[/TD]
[TD]
---
[/TD]
[TD]
380
[/TD]
[TD]
430
[/TD]
[TD]
310
[/TD]
[TD]
350
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
600
[/TD]
[TD]
---
[/TD]
[TD]
420
[/TD]
[TD]
475
[/TD]
[TD]
340
[/TD]
[TD]
385
[/TD]
[/TR]
[TR]
[TD]
750
[/TD]
[TD]
---
[/TD]
[TD]
475
[/TD]
[TD]
535
[/TD]
[TD]
385
[/TD]
[TD]
435
[/TD]
[/TR]
[TR="bgcolor: #e6e6e6"]
[TD]
1000
[/TD]
[TD]
---
[/TD]
[TD]
545
[/TD]
[TD]
615
[/TD]
[TD]
445
[/TD]
[TD]
500
[/TD]
[/TR]
[TR]
[TH="width: 108"] [/TH]
[TH="width: 86"] [/TH]
[TH="width: 85"] [/TH]
[TH="width: 89"] [/TH]
[TH="width: 97"] [/TH]
[TH="width: 107"] [/TH]
[/TR]
[/TABLE]
WARNING! Installation of electrical wire can be hazardous, if done improperly, can result in personal injury or property damage. For safe wiring practices, consult the National Electrical Code® and your local building inspector.