Section 2 - Installation; Specifications; Volt-Ampere Curves - Miller Electric Shopmaster 300 AC/DC Owner's Manual

2-1. Specifications

Rated
Model Weld
Output Output
NEMA Class II (40): 200
Amperes, 28 Volts AC,
40% Duty Cycle
60 Hz
NEMA Class II (50): 300
Amperes, 32 Volts DC,
50% Duty Cycle
*While idling.

2-2. Volt-Ampere Curves

A. AC Mode
B. CC Mode DC
SECTION 2 – INSTALLATION
Max.
Weld
Open-
Output
Circuit
Mode Mode
Voltage
AC 80 Volts AC
CC 68 Volts DC
CV 40 Volts DC
Input at Rated Load Output,
60 Hz, Single-Phase
Amperes At
200 V 230 V 460 V
85 74 37
(4.6)* (4)* (2)*
105 91 46
(4.6)* (4)* (2)*
103 90 45
(7)* (6.2)* (3.1)*
C. CV Mode DC
KVA KW
575 V
29 16.8
(1.6)* (0.91)* (0.58)*
36 20.9 13.6
(1.6)* (0.91)* (0.58)*
36 20.7 13.6
(2.5)* (1.4)* (0.74)*
Volt-ampere curves show mini-
mum and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall be-
tween curves shown.
va_curve1 4/95 – 127 201 / 127 198 / 127 197
OM-322 Page 9
8.2