1. specifications, 2. duty cycle and overheating – Hobart Welding Products STELLAR AT OM-2208 User Manual
Page 13
OM-2208 Page 9
SECTION 2 – INTRODUCTION
2-1. Specifications
Voltage
Amperage
Max. Open-
RMS Amps Input at Rated Load
Output, 60 Hz 3-Phase at NEMA Load
Voltages and Class I Rating
Rated Output at
60% Duty Cycle
Range in
CV Mode
Range in
CC Mode
Circuit
Voltage
230 V
460 V
575 V
KVA
KW
300 A at 32 VDC, 3-Phase
10–35 V
5–400 A
90 VDC
30.5
(0.21*)
18.9
(0.10*)
15.2
(0.08*)
12.2
(0.09*)
11.6
(0.04*)
225 A at 29 VDC, 1-Phase
47.4
(0.34*)
24.5
(0.14*)
– –
11.3
(0.09*)
7.6
(0.04*)
*While idling
**See Section 3-5 for additional information.
6 Minutes Welding
4 Minutes Resting
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, output stops, a
Help message is displayed (see
Section 5-2), 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
warranty.
60% Duty Cycle
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
sduty1 5/95 / SA-207 877