OM-318 Page 9
SECTION 2 – INSTALLATION

2-1. Specifications

Rated Weld Max. Input at Rated Load Output,
50/60 Hz, Single-Phase
Model Weld
Output
Output
Mode
Open-
Circuit Amperes At KVA KW
Output Mode Voltage 200 V 220 V 230 V 380 V 415 V 460 V 575 V
NEMA Class II (40):
200 Amperes, 28
Volts AC, 40% Duty
Cycle
AC 80 Volts
AC 85
(4.6)* 74
(4)* 37
(2)* 29
(1.6)* 16.8
(0.91)* 8.2
(0.58)*
60 Hz NEMA Class II (50):
300 Amperes, 32 CC 68 Volts
DC 105
(4.6)* 91
(4)* 46
(2)* 36
(1.6)* 20.9
(0.91)* 13.6
(0.58)*
300 Amperes, 32
Volts DC, 50% Duty
Cycle CV 40 Volts
DC 103
(7)* 90
(6.2)* 45
(3.1)* 36
(2.5)* 20.7
(1.4)* 13.6
(0.74)*
NEMA Class II (40):
200 Amperes, 28
Volts AC, 40% Duty
Cycle
AC 80 Volts
AC 71
(4.7)* 41
(2.7)* 37
(2.5)* 15.7
(1.0)* 7.9
(0.5)*
50 Hz NEMA Class II (50):
300 Amperes, 32 CC 57 Volts
DC 90
(4.7)* 52
(4.7)* 48
(2.5)* 19.3
(1.0)* 13.1
(0.5)*
300 Amperes, 32
Volts DC, 50% Duty
Cycle CV 40 Volts
DC 98
(6.2)* 57
(3.6)* 52
(3.3)* 21.6
(1.4)* 13.5
(0.73)*
*While idling.

2-2. Volt-Ampere Curves

va_curve1 4/95 – ST-127 201 / ST-127 198 / ST-127 197
Volt-ampere curves show mini-
mum and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall be-
tween curves shown.

A. AC Mode

B. CC Mode DC C. CV Mode DC