Volt-Ampere; Duty - MAC TOOLS MW250 Owner's Manual

2-1. Volt-Ampere Curves
Figure 2-1. Volt-Ampere
Curves
2-2. Duty
Cycle
a
CAUTION
~o.
R~W ~flR~
Figure 2-2. Duty Cycle
The volt-ampere
curves
show the
50
minimum and maximum voltage
and
amperage
output capabilities
of the
welding
power
source.
Curves of
other settings
fall be-
40
tween
the
curves
shown.
0
0 25 60 75 100 126 150 176 200 225
DC AMPERES
ssbl.1 10/91
SB-049424-D
I
~
w ELDING LONGER THAN RATED DUTY CYCLE
can
damage unit
or
gun and void
warranty.
Do not weld
at
rated load
longer
than shown below.
wfwam8.2 8/93
0
Definition
~
Duty Cycle is
percentage
of 10
10
weld at rated load without
over-
minutes that unit
or gun can
Minutes heating.
UNIT
60% Duty Cycle At 200 Amperes
g
6 Minutes
Welding
4 Minutes Resting
Chart GUN
3C0
~.
Ui
~
~
~
I
Ui
~
~ -
- - -
--
I
- - -
-t---
- -
40 ~
x ou~v cyct.~
.
6 minutes Welding 4
minutes
Resting
sbl.38193SB-150215
~7
OM-154 501
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