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OM-193 267 Page 11
SECTION 3 − INSTALLATION
3-1. Specifications
Input
Power
Rated Welding
Out
p
ut
Voltage
Ran
g
e
Maximum
Open-
Circuit
Voltage
Amperes Input At Rated
Load Output 60 Hz,
Three-Phase
KVA KW
Power
Output
Range
Voltage
DC
230 V 460 V 575 V 230/460 575 230/460 575
Three
Phase
450 A @ 38 Volts DC,
100% Duty Cycle;
565 A @ 43 Volts DC,
60% Duty Cycle
10 − 38 95
50.8
(0.14*)
27.8
(0.09*)
24.4
(0.12*)
21.2
(0.06*)
24.3
(0.12*)
19.2
(0.04*)
19.0
(0.07*)
*While idling
3-2. 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
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A/V
OR
Reduce Duty Cycle
Minutes
duty1 4/95 − SA-181 560
Continuous Welding
100% Duty Cycle At 450 Amperes 60% Duty Cycle At 565 Amperes
6 Minutes Welding 4 Minutes Resting