2
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The full technical specification for your inverter is to be found printed in a
table on the back panel of the machine.
The meaning of the markings and symbols shown in the table are explained
as follows.
H
Code letter for degree of insulation
n
h
Symbol for the No. reference electrodes being melted with the welding
power source at the hot state, without operation of the thermal cut-out.
IP_ _
Degree of protection (e.g. IP21)
I
1
max_ _
A
Symbol, rated value and dimension of the max. supply current
_ _
A
Size of the necessary main fuse
U
1
_ _ _
V
R
ated value of the supply voltage
n
c
Symbol for the number of reference electrodes capable of
being melted with the welding power source, starting from the
cold state without operation of the thermal cut-out
I
2
A
Symbol and dimension for the welding current
mm
Symbol and dimension for the diameter of reference electrodes
_ _ _ _ _ _
A
I
2
Min. and Max. rated value of the welding current
50Hz
Rated frequency for alternating current
Symbol for dropping characteristic
Symbol for manual arc welding and covered electrodes
Symbol for the mains supply and No. of phases
1
Single Phase Transformer
1
U
0
_ _ _ _ _ _
V
Min. and Max. rated no load voltage
EXPLANATION OF ELECTRICAL SYMBOLS
X
Duty Cycle (expressed as a %, i.e. 20%)
S
1
(
THERM
)
Rated value of Thermal Overload
