SECTION 3 – INSTALLATION

3-1. Specifications

 

Rated

Amp

Maximum

 

IP

Amperes Input at Rated Load Output, 50 or 60 Hz,

 

 

Model

Open-

 

 

 

Three-Phase

 

 

 

 

Welding

 

 

 

 

 

 

 

Range DC

Circuit

 

Rating

 

 

 

 

 

 

 

 

 

 

Output

 

Voltage DC

 

 

200 V

230 V

380 V

400 V

440 V

460 V

575 V

KVA

KW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

300

300 A @

 

72

 

 

70

61

35

33

31

31

25

24.5

13.8

32 Volts

15 – 395

 

21M

Amp

DC, 60%

(70)

 

4.0*

3.6*

1.1*

1.1*

1.0*

3.1*

1.5*

1.3*

0.67*

 

 

 

 

Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

450

450 A @

 

72

 

 

102

89

54

51

47

45

36

35.5

23.3

38 Volts

20 – 590

 

21M

Amp

DC, 60%

(70)

 

3.5*

3.1*

1.5*

1.4*

1.2*

1.5*

1.2*

1.2*

0.51*

 

 

 

 

Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

650

650 A @

 

72

 

 

 

124

75

71

65

62

50

49.4

36

44 Volts

50 – 850

 

21M

––

Amp

DC, 60%

(70)

 

5.2*

1.7*

1.6*

1.5*

2.6*

2.1*

2.1*

0.58*

 

 

 

 

 

Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*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.

Example: 60% Duty Cycle =

6 Minutes Welding

4 Minutes Resting

 

Overheating

A

 

0

 

 

15

 

 

OR

 

Minutes

Reduce Duty Cycle

duty1 4/95 / Ref. SA-168 919

 

OM-222 Page 13

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Hobart Welding Products 652, 302, 452 manual Installation, Specifications, Duty Cycle And Overheating
Page 16 Page 18

652, 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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