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OM-293 Page 9
SECTION 2 – INSTALLATION
2-1. Specifications
Rated Welding Voltage Range Maximum Open-
Amperes Input at Rated Load
Output, 60 Hz, Single-Phase
Output DC Circuit Voltage DC
200 V 230 V 460 V KVA KW
200 A @ 28 Volts DC,
60% Duty Cycle
Low Range: 10–20
V; High Range:
20–30 V
42
46
(1.2*)
40
(1.0*)
20
(0.5*)
9.2
(0.2*)
8.3
(0.1*)
*While idling
2-2. Duty Cycle And Overheating
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
voltage, or duty cycle before
welding.
Y Exceeding duty cycle can
damage unit and void war-
ranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
sduty1 5/95 / 155 647-A
60% Duty Cycle At 200 Amperes
6 Minutes Welding 4 Minutes Resting