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2. duty cycle and overheating – Hobart Welding Products HANDLER 140 OM-925 User Manual

Page 16

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A complete Parts List is available at www.HobartWelders.com

OM-925 Page 12

4-2. Duty Cycle And Overheating

Duty Cycle is percentage of 10

minutes 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.
NOTICE − Exceeding duty cycle

can damage unit or gun and void

warranty.

Overheating

0

15

A or V

OR

Reduce Duty Cycle

Minutes

duty1 4/95 − 217 623-A

20% duty cycle at 90 amps

1

4

10

20

40

60

100

2

6

80

8

10

20

40

60

80

100

200

140

Duty Cycle %

Output Amperes

2 Minutes Welding

8 Minutes Resting

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