OM-259 Page 9
SECTION 2 – INSTALLATION

2-1. Specifications

Rated Open-
Circuit Amperes Input at Rated Load Output, 50 or 60 Hz, Three-Phase
Model Rated
Welding
Output
Circuit
Voltage
Range
DC
200
V220
V230
V380
V400
V440
V460
V520
V575
VKVA KW
250 Amp 250 A @ 35
Volts DC, 100%
Duty Cycle 14–44 34.5
1.7* –– 30
1.4* –– –– –– 15
0.7* –– –– 11.9
0.57* 11.2
0.42*
300 Amp 300 A @ 32
Volts DC, 100%
Duty Cycle 14–44 38
3* 34.5
2.8* 33
2.7* 20
1.9* 19
1.6* 17.3
1.5* 16.5
1.4* 14.6
1.1* 13.0
0.7* 13.1
0.97* 12.3
0.68*
*While idling

2-2. Duty Cycle And Overheating

Continuous Welding
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.
YExceeding duty cycle can
damage unit and void
warranty.
100% Duty Cycle
Overheating
0
15

A/V

OR
Reduce Duty Cycle
Minutes
duty1 4/95 / Ref. SA-177 714-B
CP302
CP252TS