2-1. Specifications
Rated Welding Output
300 A at 32 VDC, 3-Phase
60% Duty Cycle
225 A at 29 VDC, 1-Phase
60% Duty Cycle
400 A at 36 VDC, 3-Phase
30% Duty Cycle
*While idling
**See Section 3-4 for additional information.
2-2. Duty Cycle And Overheating
Overheating
SECTION 2 – INTRODUCTION
Amperage
Max. Open-
Range in
Circuit
CC Mode
Voltage
5–400 A
90 VDC
60% Duty Cycle
6 Minutes Welding
0
Minutes
RMS Amps Input at Rated Load
Output, 60 Hz 3-Phase at NEMA Load
Voltages and Class I Rating
230 V
460 V
30.5
18.9
(0.21*)
(0.10*)
47.4
24.5
(0.34*)
(0.14*)
44.8
25.8
(0.21*)
(0.10*)
4 Minutes Resting
15
OR
Reduce Duty Cycle
575 V
KVA
15.2
12.2
(0.08*)
(0.09*)
– –
11.3
(0.09*)
22.5
17.6
(0.08*)
(0.09*)
Y Exceeding duty cycle can
damage
unit
and
warranty.
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
If unit overheats, output stops. A
over-temperature light is displayed,
and cooling fan runs. Wait fifteen
minutes for unit to cool. Reduce
amperage or voltage, or duty cycle
before welding.
A or V
sduty1 5/95 / SA-207 877
OM-208 474 Page 9
KW
11.6
(0.04*)
7.6
(0.04*)
16.6
(0.04*)
void