3-2. Dimensions, Weights, and Operating Angles

 

Dimensions

 

 

 

 

 

 

Height

33 in (838 mm)

 

 

 

 

 

 

Width

18-3/4 in (476 mm)

 

 

 

 

 

 

Depth

45-1/2 in (1156 mm)

 

 

 

 

 

 

A

18 in (457 mm)

 

 

 

 

 

 

 

 

 

 

B

16-1/2 in (419 mm)

 

 

 

 

 

 

C

3/4 in (19 mm)

 

 

 

 

F

D

3-1/8 in (79 mm)

 

 

 

 

 

 

E

32-3/4 in (832 mm)

 

 

 

 

 

 

F

45-1/2 in (1156 mm)

 

 

 

 

 

 

G

13/32 in (10 mm) Dia.

 

 

 

 

 

 

 

Weight

 

 

 

 

 

 

 

615 lb (279 kg)

 

 

 

 

 

 

A

B

C

D

E

Engine End

YDo not exceed tilt angles or engine could be damaged or unit could tip.

GY Do not move or operate unit where it could tip.

4 Holes

 

25°

25°

25°

 

25°

 

ST-800 426

3-3. Fuel Consumption

LITERS/HR.

IMP. GAL/HR.

U.S. GAL/HR.

7.57

1.67

2.00

6.81

1.50

1.80

6.06

1.33

1.60

5.30

1.17

1.40

4.54

1.00

1.20

3.79

0.83

1.00

3.03

0.67

0.80

2.27

0.50

0.60

1.51

0.33

0.40

0.76

0.17

0.20

0.00

0.00

0.00

 

 

 

 

 

DC/CC (STICK)

 

 

 

 

 

 

AC/CC

 

DC/CV (MIG)

 

 

 

 

 

 

 

 

 

 

AUX POWER

 

 

 

IDLE

 

 

 

 

 

 

 

 

 

 

2200 R.P.M.

 

 

 

 

 

 

 

 

0

50

100

150

200

250

300

350

400

450

500

 

DC WELD AMPERES AT 100% DUTY CYCLE

 

 

 

0

1

2

3

4

5

6

7

8

9

10

 

 

POWER KVA AT 100% DUTY CYCLE

 

 

 

ST-189 264

OM-486 Page 10

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Miller Electric 251 NT manual Dimensions, Weights, and Operating Angles, Fuel Consumption
Page 13 Page 15

251 NT specifications

The Miller Electric 251 NT is a highly regarded multi-process welding machine known for its versatility and advanced features, making it an ideal choice for professionals in various industries. With its robust construction and user-friendly interface, the 251 NT provides an efficient solution for MIG, TIG, and Stick welding applications.

One of the main features of the Miller Electric 251 NT is its impressive output range, which allows for welding on a variety of materials and thicknesses. It delivers up to 250 amps of power, enabling users to tackle both thin and thick metals with ease. Additionally, the machine is equipped with an Auto-Set feature, which automatically adjusts the welding settings according to the material thickness and type. This eliminates the guesswork, significantly enhancing productivity and reducing setup time.

Another noteworthy aspect of the Miller Electric 251 NT is its inverter technology. This advanced technology provides a compact, lightweight design without compromising performance. Inverter technology allows for greater energy efficiency, resulting in reduced operational costs over time. The 251 NT also features a Duty Cycle of 60% at 250 amps, which means it can handle demanding tasks while maintaining optimal performance.

The Miller Electric 251 NT is designed with user convenience in mind. The intuitive digital display offers clear visibility of the settings, allowing welders to make quick adjustments. Furthermore, the machine includes a built-in memory function to store frequently used parameters, enhancing workflow efficiency.

Safety is a key component of the 251 NT's design. It comes equipped with various safety features, including overload protection and a thermal overload warning system. These features ensure that the machine operates within safe limits, minimizing the risk of damage and ensuring longevity.

In terms of portability, the Miller Electric 251 NT's lightweight design and integrated handle make it easy to transport between job sites. The durable housing protects the internal components, making it suitable for rigorous use in demanding environments.

Overall, the Miller Electric 251 NT offers a combination of power, flexibility, and ease of use, making it a top choice for welders looking to enhance their capabilities across multiple welding processes. Whether in a professional shop or on a construction site, the 251 NT stands out as a reliable and efficient welding solution.
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