Miller Auto Arc 160 Owner's Manual - Page 12

Browse online or download pdf Owner's Manual for Welding System Miller Auto Arc 160. Miller Auto Arc 160 41 pages.

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Miller Auto Arc 160 Owner's Manual

2-3. Duty Cycle And Overheating

Overheating
OM-187 924 Page 10
300
250
200
150
100
75
50
10
15
20
25 30
% DUTY CYCLE
30% Duty Cycle At 130 Amperes
3 Minutes Welding
40
50 60 70 80 100
7 Minutes Resting
0
15
Reduce Duty Cycle
Minutes
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 or gun and void
warranty.
A or V
OR
duty1 4/95 − SB-180 844