Section 3 − Specifications; Serial Number And Rating Label Location; Unit Specifications; Duty Cycle And Overheating - Miller MPi 220P Owner's Manual

3-1. Serial Number And Rating Label Location

The serial number and rating information for this product is located on the bottom . Use rating label to determine input power requirements and/or rated
output. For future reference, write serial number in space provided on back cover of this manual.

3-2. Unit Specifications

.
Do not use information in unit specifications table to determine electrical service requirements. See Sections 4-10 and 4-11 for information on
connecting input power.
Input Power
Single Phase
AC 50/60 Hz
Model Voltage
230 Volts
MIG 17.5 V
230 Volts
MPi
STICK 24.0 V
220P
230 Volts
TIG 14.0 V

3-3. Duty Cycle And Overheating

60% Duty Cycle At 140 Amperes
6 Minutes Welding
Overheating
OM-253918 Page 8
SECTION 3 − SPECIFICATIONS
Rated Output
100% 60% 30%
110 A 140 A 200 A
21.0 V 24.0 V
100 A 130 A 200 A
25.2 V 26.8 V
100 A 130 A
15.2 V
−−
250
200
175
150
100
50
% DUTY CYCLE
4 Minutes Resting
Minutes
25%
Max. OCV
−− 35 V
−−
65 V
200 A
65 V
18 V
100% Duty Cycle At 110 Amperes
0
15
Reduce Duty Cycle
Amperage
/Voltage
Range Dimension
(mm)
DC
20 - 200 A
15.0 - 24.0 V
L = 548
5 - 200 A
W = 237
20.2 - 28.0 V
H = 365
5 - 200 A
10.0 - 18.0 V
Duty Cycle is percentage of 10
minutes 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.
NOTICE − Exceeding duty cycle
can damage unit or gun and void
warranty.
Continuous Welding
A or V
OR
Weight
(kg)
16
sduty1 5/95