ET 201i DC
INTRODUCTION 0-5452
2-2
2.06 Duty Cycle
The rated duty cycle of a Welding Power Source, is the percentage of a ten minute time period that it may be operated
at its rated output current without exceeding the temperature limits of the insulation of the component parts. To explain
the 10 minute duty cycle period, suppose a Welding Power Source is designed to operate with a 30% duty cycle at
160 amperes and 26.4 volts. This means that it has been designed and built to provide the rated amperage (160A) for
3 minutes, i.e. arc welding time, out of every 10 minute period (30% of 10 minutes is 3 minutes). During the other 7
minutes of the 10 minute period the Welding Power Source must idle and be allowed to cool.
2.07 Specifications
Power Source Part Number W1003806
Mains Power
Nominal Supply Voltage AC 115V AC 208/230V
Number of Phases Single Phase Single Phase
Input Voltage Range AC 104- 127V AC 187- 253V
Nominal Supply Frequency 50/60 Hz 50/60 Hz
Effective Input Current (l1eff) for STICK (SMAW) Welding 18.3 Amps 15.8/14.2 Amps
Effective Input Current (l1eff) for LIFT TIG/HF TIG (GTAW)
Welding
16.4 Amps 12.3/11.1 Amps
Maximum Input Current (l1 max) for STICK (SMAW) Welding ∆ 27.2 Amps ∆ 35.2/31.6 Amps
Maximum Input Current (l1 max) for LIFT TIG/HF TIG (GTAW)
Welding
∆ 23.2 Amps ∆ 24.6/22.1 Amps
Single Phase Generator Requirements [Continuous rating
at nominal supply voltage with maximum output for STICK
(SMAW) welding]
4 KVA 7.3 KVA
Welding Output
Welding Current Range Stick: 10 - 125 Amps
TIG: 10 - 160 Amps
Stick/TIG:
10 - 200 Amps
Nominal DC Open Circuit Voltage (OCV) 71V 71V
Welding Output, 104º F (40º C), 10 min.
(Quoted figures refer to STICK (SMAW) output)
100A @ 45%, 24.0V
87A @ 60%, 23.5V
68A @ 100%, 22.7V
200A @ 20%, 28V
116A @ 60%, 24.6V
90A @ 100%, 23.6V
Rated Input Current (A)
For STICK (SMAW) Welding
27.2A
Io = 100A @ 24.0V
35.2/31.6A
Io = 200A @ 28V
Rated Input Current (A)
For LIFT TIG (GTAW) Welding
23.2A
Io = 125A @ 15.0V
24.6/22.1A
Io = 200A @ 18V
Rated Output for STICK (SMAW) Welding 24.0V, 100A @ 45% 28V, 200A @ 20%
Rated Output for LIFT TIG/HF TIG (GTAW) Welding 15.0V, 125A @ 50% 18V, 200A @ 25%
Duty Cycle (%) 45% @ 100A 20% @ 200A
Welder Type Inverter Power Source
Output Terminal Type Heavy Duty Dinse
TM
50
Classification
Protection Class IP21S
Standards CSA E60974-1
EN50199
Cooling Method Fan Cooled
Dimensions and Weight
Welding Power Source Mass 22 lb. (10 kg)
Welding Power Source Dimensions (Height x Width x Depth) H 9.0” x W 5.3” x D 17.7”
(H230mm x W135mm x D450mm)
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