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Technical data
Explanation of
The duty cycle (ED) is the period of a ten minute cycle in which the device may be
the term duty
operated at the stated power without overheating.
cycle
NOTE!
The ED values cited on the rating plate relate to an ambient temperature of
40 °C.
If the ambient temperature is higher, the ED or power must be lowered accord-
ingly.
Example: Welding with 150 A at 60% ED
-
-
-
150 A
To use the device without interruptions:
1
2
Welding phase = 60% of 10 mins = 6 mins
Cool-down phase = rest time = 4 mins
Following the cool-down phase, the cycle begins again.
60 %
6 Min.
0 A
0 Min.
Search for a 100% ED value in the technical data, which corresponds to the
existing ambient temperature.
Reduce the power or amperage value correspondingly so that the device can
operate without a cool-down phase.
4 Min.
6 Min.
10 Min.
37
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