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OM-259 355 Page 69
12-11. Selecting Extension Cord (Use Shortest Cord Possible)
Cord Lengths for 120 Volt Loads
Use GFCI protection when operating auxiliary equipment. If unit does not have GFCI receptacles, use GFCI-protected exten-
sion cord. Do not use GFCI receptacles to power life support equipment.
Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
Current
(Amperes)
Load (Watts)
4
6
8
10
12
14
5
600
350 (106)
225 (68)
137 (42)
100 (30)
7
840
400 (122)
250 (76)
150 (46)
100 (30)
62 (19)
10
1200
400 (122)
275 (84)
175 (53)
112 (34)
62 (19)
50 (15)
15
1800
300 (91)
175 (53)
112 (34)
75 (23)
37 (11)
30 (9)
20
2400
225 (68)
137 (42)
87 (26)
50 (15)
30 (9)
25
3000
175 (53)
112 (34)
62 (19)
37 (11)
30
3600
150 (46)
87 (26)
50 (15)
37 (11)
35
4200
125 (38)
75 (23)
50 (15)
40
4800
112 (34)
62 (19)
37 (11)
45
5400
100 (30)
62 (19)
50
6000
87 (26)
50 (15)
*Conductor size is based on maximum 2% voltage drop
Cord Lengths for 240 Volt Loads
Use GFCI protection when operating auxiliary equipment. If unit does not have GFCI receptacles, use GFCI-protected exten-
sion cord. Do not use GFCI receptacles to power life support equipment.
Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*
Current
(Amperes)
Load (Watts)
4
6
8
10
12
14
5
1200
700 (213)
450 (137)
225 (84)
200 (61)
7
1680
800 (244)
500 (152)
300 (91)
200 (61)
125 (38)
10
2400
800 (244)
550 (168)
350 (107)
225 (69)
125 (38)
100 (31)
15
3600
600 (183)
350 (107)
225 (69)
150 (46)
75 (23)
60 (18)
20
4800
450 (137)
275 (84)
175 (53)
100 (31)
60 (18)
25
6000
350 (107)
225 (69)
125 (38)
75 (23)
30
7000
300 (91)
175 (53)
100 (31)
75 (23)
35
8400
250 (76)
150 (46)
100 (31)
40
9600
225 (69)
125 (38)
75 (23)
45
10,800
200 (61)
125 (38)
50
12,000
175 (53)
100 (31)
*Conductor size is based on maximum 2% voltage drop
Summary of Contents for Big Blue 300 PRO Series
Page 33: ... Complete Parts List is available at www MillerWelds com OM 259 355 Page 29 Notes ...
Page 51: ... Complete Parts List is available at www MillerWelds com OM 259 355 Page 47 Notes ...
Page 59: ...OM 259 355 Page 55 240 670 C ...
Page 60: ...OM 259 355 Page 56 Figure 10 2 Circuit Diagram For Welding Generator With Kubota Engine ...
Page 61: ...OM 259 355 Page 57 253 845 B ...
Page 62: ...OM 259 355 Page 58 Figure 10 3 Circuit Diagram For Welding Generator With Mitsubishi Engine ...
Page 63: ...OM 259 355 Page 59 250 149 B ...
Page 74: ...OM 259 355 Page 70 Notes ...