SECTION 3 – INSTALLATION

3-1. Specifications

 

 

Rated

Amperage/

 

 

Amperes Input at Rated Load Output

 

 

 

 

IP

Max

 

 

50 or 60 Hz, Three-Phase

 

 

 

 

Model

Welding

Voltage

 

 

 

 

 

 

 

 

 

 

Rating

OCV–DC

200

230

380

400

440

460

520

575

KVA

KW

 

 

Output

Range

 

 

 

 

 

 

V

V

V

V

V

V

V

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300 A @ 32

15 – 375A

60 VDC In

57.5

50

30

28

26

25

--

20

20

12.9

 

 

In CC Mode

CC Mode

4.0*

3.5*

1.5*

1.4*

1.3*

1.8*

1.4*

1.4*

0.6*

 

 

 

300

21M

(29) Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

38 (40) VDC

 

 

 

 

 

 

 

 

 

 

Amp

DC, 100%

10 – 32V In

69

60

36

34

31

30

--

24

23.7

13.4

 

 

Duty Cycle

In

 

 

CV Mode

4.0*

3.5*

1.4*

1.3*

1.2*

1.8*

1.4*

1.4*

0.6*

 

 

 

CV Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20 – 565A

65 (62) VDC

91

79

48

46

41

39

34

31

31.4

22

 

 

450 A @ 38

In

 

 

In CC Mode

4.2*

3.8*

1.8*

1.6*

1.4*

1.9*

1.2*

1.5*

1.5*

0.7*

 

 

CC Mode

450

21M

(36.5) Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amp

DC, 100%

10 – 38V In

45 (50) VDC

104

90

52.5

51

46

45

38

36

35.3

22.3

 

 

 

Duty Cycle

In

 

 

CV Mode

4.2*

3.8*

1.6*

1.4*

1.3*

1.9*

1.4*

1.5*

1.5*

0.7*

 

 

 

CV Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*While idling

 

 

 

 

 

 

 

 

 

 

 

 

 

( ) Indicates specification differences for CE models

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10 min- utes that unit can weld at rated load without overheating.

If unit overheats, thermostat(s) opens, output stops, and cooling fan runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before welding.

Y Exceeding duty cycle can damage unit and void warranty.

100% Duty Cycle

Continuous Welding

Overheating

0

A/V

 

15

 

OR

Minutes

Reduce Duty Cycle

 

duty1 4/95 / Ref. SA-168 918

OM-277 Page 12

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Hobart Welding Products 302, 452 manual Installation, Specifications, Duty Cycle And Overheating
Page 15 Page 17

302, 452 specifications

Hobart Welding Products has established itself as a trusted name in the world of welding equipment, and among its extensive lineup, the 452,302 model stands out for its exceptional performance and versatility. This MIG welder is designed to meet the needs of both professionals and hobbyists, ensuring high-quality welds in a variety of applications.

One of the main features of the Hobart 452,302 is its robust build quality. Constructed with durable materials, this welder is designed to withstand the rigors of heavy use while maintaining consistent performance. Its compact design allows for portability, making it an excellent choice for on-site jobs or home workshops.

The 452,302 operates on a 230V input power, providing a strong output range that can handle a variety of welding tasks, from thin sheets of metal to thicker materials. It boasts a high maximum output of 230 amps, which allows it to tackle demanding projects with ease. This flexibility makes it suitable for professionals in construction, fabrication, and even automotive repair.

With its excellent arc stability, the Hobart 452,302 ensures ease of use and reduces the chance of defects in welds. The welder features an adjustable wire feed speed, allowing users to dial in the perfect setting for their specific welding task. This customization is crucial for achieving optimal results, as different materials and thicknesses require varying settings.

In terms of technology, the 452,302 integrates advanced thermal overload protection, safeguarding against overheating and prolonging the lifespan of the machine. This feature is particularly beneficial in high-demand environments, where extended periods of operation can lead to equipment failure.

The Hobart 452,302 is also compatible with a range of wire sizes and types, enabling users to expand their welding capabilities. This versatility is enhanced by the welder’s easy connectivity to gas regulators, making it suitable for both gas-shielded and flux-cored welding processes.

In conclusion, the Hobart Welding Products 452,302 is a powerful and versatile MIG welder designed to meet the diverse needs of welders. With its robust build, excellent performance features, and advanced safety technologies, it is a reliable choice for anyone seeking top-quality welding equipment. Whether you're a seasoned professional or an enthusiastic beginner, the 452,302 delivers the performance and durability necessary for successful welds on a variety of projects.
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