Duty Cycle And Overheating For Tig (Gtaw) - Hobart Multi-Handler 200 Owner's Manual

4-10. Duty Cycle And Overheating For TIG (GTAW)

240
220
200
180
120V 20A
160
140
120
100
120V 15A
80
60
40
20
0
10
Overheating
OM-285922 Page 14
240V
20
% Duty Cycle
120V Input
40% Duty Cycle At 95A
4 Minutes Welding
240V Input
20% Duty Cycle At 200A
2 Minutes Welding
0
15
Minutes
Duty Cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
If unit overheats, output stops. Wait
fifteen minutes for unit to cool.
Reduce amperage or duty cycle
before starting to weld again.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
50
100
6 Minutes Resting
8 Minutes Resting
A or V
OR
Reduce Duty Cycle
duty1 4/95 − Ref. Duty Cycle Charts