Duty Cycle And Overheating - Air Liquide A 225 AC/DC: ALW-M110500425 Owner's Manual

2.4 DUTY CYCLE AND OVERHEATING:

Duty cycle is the percentage of 10 minutes that the
unit can weld at its rated output without overheat-
ing. If the unit overheats, the weld output will stop.
250
200
150
100
50
0
10
300
250
200
150
100
50
0
10
A 225 AC/DC DUTY CYCLE
A 225 AC/DC
20 30 40
% DUTY CYCLE
A 250 AC/DC DUTY CYCLE
A 250 AC/DC
20 30 40
% DUTY CYCLE
To correct this situation, wait fifteen minutes for the
unit to cool. Reduce amperage or duty cycle
before starting to weld again.
AC
DC
50 60 70
DC
50 60 70
8
80 90 100
AC
80 90 100