Section 3 − Installation; Specifications; Duty Cycle And Overheating - Miller Phoenix 456 CC/CV Manuel Du Propriétaire

3-1. Specifications

Input Rated Welding
Power Output
450 A @ 38 Volts DC,
Three
100% Duty Cycle;
Phase 565 A @ 38 Volts DC,
60% Duty Cycle

3-2. Duty Cycle And Overheating

100% Duty Cycle At 450 Amperes
Continuous Welding
Overheating
SECTION 3 − INSTALLATION
Amperage Voltage
Range Range
5 − 600 10 − 38
0
Minutes
Amperes Input
Maximum
At Rated Load
Open-
Output 60 Hz,
Circuit
Three-Phase
Voltage DC Voltage DC
400 V
95 31
60% Duty Cycle At 565 Amperes
6 Minutes Welding
15
OR
Reduce Duty Cycle
KVA KW
21.6 19.4
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.
Y Exceeding duty cycle can
damage unit and void war-
ranty.
4 Minutes Resting
A/V
duty1 4/95 − SA-181 560
OM-188 422 Page 13