16-11. 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.

Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*

Current

Load (Watts)

4

 

6

 

8

10

12

14

(Amperes)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

If unit does not have GFCI receptacles, use GFCI-protected extension cord.

Maximum Allowable Cord Length in ft (m) for Conductor Size (AWG)*

Current

Load (Watts)

4

6

 

8

10

12

14

(Amperes)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

OM-4409 Page 75

Page 79
Image 79
Miller Electric OM-4409 manual Selecting Extension Cord Use Shortest Cord Possible

OM-4409 specifications

The Miller Electric OM-4409 is a remarkable welding machine designed for both professional welders and enthusiastic hobbyists. Known for its reliability and efficiency, the OM-4409 stands out in the industrial landscape due to its advanced features and innovative technologies.

One of the main features of the OM-4409 is its impressive power output. With a rated output of 400 amps, it is capable of tackling a variety of welding applications, including MIG, TIG, and stick welding. This versatility allows users to switch between welding processes depending on the project requirements while ensuring consistent quality and performance.

The machine incorporates advanced inverter technology, which enhances its overall efficiency. Inverter technology allows for a compact design without sacrificing performance. The OM-4409 weighs significantly less than traditional transformer-based machines, making it more portable and easier to transport. Additionally, the inverter technology ensures that energy consumption is kept to a minimum, reducing operational costs.

Another notable characteristic of the Miller Electric OM-4409 is its user-friendly interface. The intuitive control panel provides easy access to settings and adjustments, allowing welders to fine-tune the machine to their specific needs. The digital display shows crucial parameters such as voltage, amperage, and wire feed speed, enabling welders to monitor their progress in real-time effectively.

Safety is paramount in industrial applications, and the OM-4409 does not disappoint. It is equipped with advanced safety features, including thermal overload protection and fault indication systems. These features ensure that the machine operates within safe limits, protecting both the user and the equipment.

The OM-4409 also boasts a robust build quality, designed to withstand the rigors of daily use in demanding environments. Its durable construction ensures longevity, minimizing maintenance and downtime.

In summary, the Miller Electric OM-4409 welding machine is a powerhouse that combines power, efficiency, and user-friendliness. With its inverter technology, versatility across various welding processes, advanced safety features, and robust design, it represents an excellent investment for any welding professional looking to enhance their capabilities. Whether for heavy-duty industrial applications or intricate metalwork, the OM-4409 delivers unmatched performance and reliability.