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OM-220 389 Page 13
3-3. Symbols And Definitions
A
Amperage
Direct Current
(DC)
Alternating
Current (AC)
V
Voltage
Output Circuit Breaker Remote On
Off Positive Negative Voltage Input
Arc Force Constant Voltage Inductance
Protective Earth
(Ground)
Increase Line Connection
Gas Metal Arc
Welding (GMAW)
Three Phase Static
Frequency Con-
verter-
Transformer-
Rectifier
U
0
Rated No Load
Voltage (Average)
U
1
Primary Voltage
U
2
Conventional
Load Voltage
X
Duty Cycle
Hz
Hertz
IP
Degree Of
Protection
I
2
Rated Welding
Current
%
Percent
Pulsed Single Phase Three Phase
I
1ma
x
Rated Maximum
Supply Current
I
1eff
Maximum Effective
Supply Current
S
Suitable for Some
Hazardous
Locations
3-4. Manufacturer’s Rating Label
5/04 − 225 636-C