Owner`s manual

OM-303 Page 11
Return To Table Of Contents
4-2. Specifications
A. 60 Hertz Models
Rated Output at 20%
Duty Cycle
Welding Amperage Range
AC High AC Low DC
Max.
Open-Circuit
Voltage
Rated Output KVA Dimensions
Net
Weight
TIG: 150 A at 15 VDC
(GTAW) 150 A at 15 VAC
TIG Welding A Range
50−165 20−50 30−160
78 200 V−60 A (3.6)
*
230V−52 A (3.0)*
12.0
(0.64)
*
H: 18 in (457 mm)
W: 13 in (330 mm)
140 lb
(64 kg)
Stick: 130 A at 25 VDC
(SMAW) 150 A at 25 VAC
Stick Welding A Range
35−165 20−50 25−130
78
230V−52 A (3.0)*
460 V−33 A (1.5)
*
W: 13 in (330 mm)
D: 25
1
/
2
in (648 mm
)
* () While idling.
B. 50 Hertz Models
Rated Output at 20%
Duty Cycle
Welding Amperage Range
AC High AC Low DC
Max.
Open-Circuit
Voltage
Rated Output KVA Dimensions
Net
Weight
TIG: 150 A at 15 VDC
(GTAW) 150 A at 15 VAC
TIG Welding A Range
50−165 20−50 30−160
78 380 V−39 A (2.0)
*
415V−36 A (1.5)*
14.8
(0.64)
*
H: 18 in (457 mm)
W: 13 in (330 mm)
140 lb
(64 kg)
Stick: 130 A at 25 VDC
(SMAW) 150 A at 25 VAC
Stick Welding A Range
35−165 20−50 25−130
78
415V−36 A (1.5)*
W: 13 in (330 mm)
D: 25
1
/
2
in (648 mm
)
* () While idling.
4-3. Duty Cycle Chart
2 Minutes
Welding
8 Minutes
Resting
Duty cycle is percentage of 10
minutes that unit can weld at rated
load without overheating.
Y Exceeding duty cycle can
damage unit and void
warranty.
GTAW: 20% Duty Cycle at 150 A AC/DC
SMAW: 20% Duty Cycle at 130 A DC, or
150 A AC
ST-157 648-A
4-4. Volt-Ampere Curves
ssb1.1 10/91 − ST-157 625-B / ST-157 626-B
Volt-ampere curves show minimum
and maximum voltage and amper-
age output capabilities of welding
power source. Curves of other set-
tings fall between curves shown.