
Symbols and Definitions
U
1
U
0
U
2
I
2
S
1
HZ
A
V
Rated welding
current
Power rating,
productof voltage
and current(KVA)
Primary voltage
Rated no load
voltage(Aaverage)
Conventional
load voltage
Hertz
Amperes
Rated maximum
supply current
Maximum effective
supply current
Volts
IP
X
I
1m ax
I
1eff
~
1
Degree of protection
Single phase
Duty cycle
Direct current
Constant crrent
Temperature
V
S
I
O
Voltage input
On
Off
Protective earth
(Ground)
Do not do this
Suitable for some
hazardous locations
Input
Low air pressure
light
+
-
%
Percent
Increase
Line connection
Loose shield cup
Automatic
Adjust air/gas
pressure
Manual
2