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12-11. Selecting Extension Cord (Use Shortest Cord Possible)
Cord Lengths for 120 Volt Loads
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
Current
Load (Watts)
(Amperes)
5
600
7
840
10
1200
15
1800
20
2400
25
3000
30
3600
35
4200
40
4800
45
5400
50
6000
*Conductor size is based on maximum 2% voltage drop
Cord Lengths for 240 Volt Loads
If unit does not have GFCI receptacles, use GFCI-protected extension cord.
Current
Load (Watts)
(Amperes)
5
1200
7
1680
10
2400
15
3600
20
4800
25
6000
30
7000
35
8400
40
9600
45
10,800
50
12,000
*Conductor size is based on maximum 2% voltage drop
OM-240 438 Page 50
Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
4
6
400 (122)
400 (122)
275 (84)
300 (91)
175 (53)
225 (68)
137 (42)
175 (53)
112 (34)
150 (46)
87 (26)
125 (38)
75 (23)
112 (34)
62 (19)
100 (30)
62 (19)
87 (26)
50 (15)
Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
4
6
800 (244)
800 (244)
550 (168)
600 (183)
350 (107)
450 (137)
275 (84)
350 (107)
225 (69)
300 (91)
175 (53)
250 (76)
150 (46)
225 (69)
125 (38)
200 (61)
125 (38)
175 (53)
100 (31)
8
10
350 (106)
225 (68)
250 (76)
150 (46)
175 (53)
112 (34)
112 (34)
75 (23)
87 (26)
50 (15)
62 (19)
37 (11)
50 (15)
37 (11)
50 (15)
37 (11)
8
10
700 (213)
450 (137)
500 (152)
300 (91)
350 (107)
225 (69)
225 (69)
150 (46)
175 (53)
100 (31)
125 (38)
75 (23)
100 (31)
75 (23)
100 (31)
75 (23)
12
14
137 (42)
100 (30)
100 (30)
62 (19)
62 (19)
50 (15)
37 (11)
30 (9)
30 (9)
12
14
225 (84)
200 (61)
200 (61)
125 (38)
125 (38)
100 (31)
75 (23)
60 (18)
60 (18)
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