Miller Electric 280 NT, Owner'S Manual

Page: 20 / 60

A complete Parts List is available at www.MillerWelds.com
OM-4430 Page 16
Duty cycle is the percentage of 10
minutes that unit can weld at rated
load without overheating.
NOTICE − Exceeding duty cycle
can damage unit and void warranty.
100% Duty Cycle at 280 Amperes DC/CC
Continuous Welding
4-7. Duty Cycle
Ref. 207 925
0 10 20
30
40
50
60 100
70
80 90
150
175
200
225
250
275
300
% DUTY CYCLE
WELD AMPERES
325
MIG/FCAW
STICK
222 558
The volt-ampere curves show the
minimum and maximum voltage
and amperage output capabilities of
the welding generator. Curves of
other settings fall between the
curves shown.
4-8. TIG Mode Volt-Ampere Curves
DC AMPERES
DC VOL
TS
0 100 200 300 400
0
5
10
15
20
25
30
35
40
45
50
Min
3000RPM Max
3600RPM Max