Duty Cycle And Overheating; Volt-Ampere Curves For Cc Models - Miller Big Blue 400D Owner's Manual

4-5. Duty Cycle And Overheating

4-6. Volt-Ampere Curves For CC Models

100
80
60
40
20
0
0 100
.
Complete Parts List available at www.MillerWelds.com
100% Duty Cycle At 400 Amperes
Continuous Welding
200 300 400 500
DC AMPERES
Ranges:
230 − Max
170 − 365
110 − 225
70 − 130
55 − 85
600 700 800 900 1000
Duty Cycle is percentage of 10 min-
utes that unit can weld at rated load
without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
215 084-A
The volt-ampere curve shows the
minimum and maximum voltage
and amperage output capabilities of
the welder/generator. Curves of all
other settings fall between the
curves shown.
215 081-A
OM-4425 Page 17