S
PECIFICATION
P
RODUCT
S
PECIFICATION
AND
C
ONFIGURATION
C
HAPTER
2
14
2.1.3
External dimensions
This section explains the external dimensions of the welding power source.
2.1.4
Rated duty cycle
This section explains the rated duty cycle of the welding power source.
CAUTION
• Use this welding power source at or under the rated duty cycle.
Exceeding the rated duty cycle may result in deterioration and damage to the welding
power source.
• Periodically blow moisture-free compressed air to clean dust and dirt accumulated on
the transistor and radiation fin of the diode.
If dust and dirt accumulate on the radiation fin, it may not only reduce the duty cycle
but also result in degradation or burnout of the welding power source.
•
The rated duty cycle of the welding power source is the following:
(Rated duty cycle of 60% means the power source must be rested for 4 minutes after 6 minutes of continuous welding at the rated
current.)
Number of
phase
Welding
method
Rated
output
Rated duty
cycle
<Operation cycle at duty cycle of 60 %>
Three
phase
DC
350 A
60%
DC TIG
DC STICK
300 A
80%
Single
phase
DC
250 A
60%
DC TIG
DC STICK
18.1" (460 mm)
3.9" (100 mm)
28.0" (710 mm)
31.9" (810 mm)
15.6" (395 mm)
12.6" (320 mm)
Energized
Stop
6 minutes
4 minutes
10 minutes
