Technical data
Special voltages For devices designed for special voltages, the technical data on the rating plate
applies.
For all machines with a permitted mains voltage of up to 460 V: The standard
mains plug allows the user to operate with a mains voltage of up to 400 V. For
mains voltages up to 460 V fit a mains plug permitted for such use or install the
mains supply directly.
Explanation of
the term "duty
cycle"
Duty cycle (ED) is the proportion of time in a 10-minute cycle at which the device
may be operated at its rated output without overheating.
NOTE!
The ED values specified on the rating plate are based on an ambient temperat-
ure of 40 °C.
If the ambient temperature is higher, either the ED or output must be reduced
accordingly.
Example: Welding at 150 A at 60% ED
-
Welding phase = 60% of 10 minutes = 6 minutes
-
Cooling phase = remaining time = 4 minutes
-
After the cooling phase, the cycle begins again.
10 Min.6 Min.
150 A
0 Min.
0 A
4 Min.6 Min.
60 %
If the device is to be continuously operated without stopping:
1
Look in the technical data for a ED value of 100% for the current ambient
temperature.
2
Reduce the output or amperage in line with this value so that the device can
remain in use without observing a cooling phase.
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