Miller Electric 460Volt - Manual (Page 15)

OM-188 304 Page 11
SECTION 3 − INTRODUCTION
3-1. Specifications
Rated Output at
Voltage
Range in
Amperage
Range in
Max. Open-
Circuit
RMS Amps Input at Rated
Load Output, 60 Hz 3-Phase
at NEMA Load Voltages and
Class I Rating
Rated Output at
60% Duty Cycle
Range in
CV Mode
Range in
CC Mode
Circuit
Voltage 230 V 460 V KVA** KW**
300 A at 32 VDC, 3-Phase 10−35 V 5−400 A 90 VDC 30.5
(0.21*)
18.9
(0.10*)
12.2
(0.09*)
11.6
(0.04*)
225 A at 29 VDC, 1-Phase 47.4
(0.34*)
24.5
(0.14*)
11.3
(0.09*)
7.6
(0.04*)
*While idling
** Information based on 230 V, 3-phase input line.
3-2. Duty Cycle And Overheating
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 7-3), and cooling fan runs.
Wait fifteen minutes for unit to cool.
Reduce amperage or voltage, or
duty cycle before welding.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
Overheating
0
15
A or V
OR
Reduce Duty Cycle
Minutes
sduty1 5/95 / SA-207 877
6 Minutes Welding 4 Minutes Resting
60% Duty Cycle