Download Handler 210 - Hobart Welders

4-2. Duty Cycle And Overheating
Output Amperes
Duty Cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
200
175
130
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.
100
80
60
Y Exceeding duty cycle can
damage unit or gun and void
warranty.
40
20
10
10
20
30
40
60 70 80
100
Duty Cycle %
30% duty cycle at 150 amps
3 Minutes Welding
7 Minutes Resting
Overheating
A or V
0
15
OR
Reduce Duty Cycle
Minutes
duty1 4/95 − 227 953-A
4-3. Volt-Ampere Curves
The volt-ampere curves show the
minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves
of other settings fall between the
curves shown.
35
30
7
6
5
4
3
Voltage
25
20
2
1
15
10
5
0
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230
Amperage
ssb1.1 10/91 − 227 954-A
OM-227 978 Page 10