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Allowable Amperage for UL 1426 Boat Cable |
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When no more than 2 current |
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18 AWG |
16 AWG |
14 AWG |
12 AWG |
10 AWG |
8 AWG |
6 AWG |
4 AWG |
2 AWG |
1AWG |
1/0AWG |
2/0AWG |
3/0AWG |
4/0 AWG |
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Outside Engine space |
20 |
25 |
35 |
45 |
60 |
80 |
120 |
160 |
210 |
245 |
285 |
330 |
385 |
445 |
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Inside Engine space |
17 |
21.3 |
29.8 |
38.3 |
51 |
68 |
102 |
136 |
178.5 |
208.3 |
242.3 |
280.5 |
327.3 |
378.3 |
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When 3 current carring coductors are bundled |
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18 AWG |
16 AWG |
14 AWG |
12 AWG |
10 AWG |
8 AWG |
6 AWG |
4 AWG |
2 AWG |
1AWG |
1/0AWG |
2/0AWG |
3/0AWG |
4/0 AWG |
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Outside Engine space |
14 |
17.5 |
24.5 |
31.5 |
42 |
56 |
84 |
112 |
147 |
171.5 |
199.5 |
231 |
269.5 |
311.5 |
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Inside Engine space |
11.9 |
14.9 |
20.8 |
26.8 |
35.7 |
47.6 |
71.4 |
95.2 |
125 |
145.8 |
169.6 |
196.4 |
229.1 |
264.8 |
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When 4 to 6 current carring coductors are bundled |
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18 AWG |
16 AWG |
14 AWG |
12 AWG |
10 AWG |
8 AWG |
6 AWG |
4 AWG |
2 AWG |
1AWG |
1/0AWG |
2/0AWG |
3/0AWG |
4/0 AWG |
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Outside Engine space |
12 |
15 |
21 |
27 |
36 |
48 |
72 |
96 |
126 |
147 |
171 |
198 |
231 |
267 |
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Inside Engine space |
10.2 |
12.8 |
17.9 |
23 |
30.6 |
40.8 |
61.2 |
81.6 |
107.1 |
125 |
145.4 |
168.3 |
196.4 |
227 |
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When 7 to 24 current carring coductors are bundled |
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18 AWG |
16 AWG |
14 AWG |
12 AWG |
10 AWG |
8 AWG |
6 AWG |
4 AWG |
2 AWG |
1AWG |
1/0AWG |
2/0AWG |
3/0AWG |
4/0 AWG |
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Outside Engine space |
10 |
12.5 |
17.5 |
22.5 |
30 |
40 |
60 |
80 |
105 |
122.5 |
142.5 |
165 |
192.5 |
222.5 |
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Inside Engine space |
8.5 |
10.6 |
14.9 |
19.1 |
25.5 |
34 |
51 |
68 |
89.3 |
104.1 |
121.1 |
140.3 |
163.6 |
189.1 |