Owner`s manual

OM-2218 Page 12
SECTION 3 – INSTALLATION
3-1. Specifications
Rated Output at
60% Duty Cycle
Welding
Amperage
Range
Max.
Open-Circuit
Voltage
Amperes Input At Rated
Output, 50Hz - Three-
Phase 400 V
KVA KW Dimensions Net Weight
250 A @ 30 VDC,
60% Duty Cycle
5 – 300 90 16.9
0.15*
11.7
0.10*
8.6
0.03*
H: 17 in (432 mm)
W: 12-1/2 in (318
mm)
D: 24 in (610 mm)
82 lb
(37 kg)
100 lb
(45 kg)
w/ auxiliary
power
*While idling
3-2. Duty Cycle And Overheating
ST-186 863
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 5-3), and cooling fan runs.
Wait fifteen minutes for unit to cool.
Reduce amperage or voltage, or
duty cycle before welding.
YExceeding duty cycle can
damage unit and void
warranty.
250 A @ 60% Duty Cycle
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
6 Minutes Welding 4 Minutes Resting