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OM-928 Page 10
SECTION 4 − INSTALLATION
4-1. Specifications For Power Source
Primary
Volts
Primary
Amperes
Primary Service
(Recommended)
Secondary
Volts (DC)
Secondary
Amperes
KW KVA
Rated
Cutting
Capacity
Power
Factor
Max**
OCV
(DC)
120
20.32
(0.25*)
20A 110 12 2.01 2.44
0.25 in
(6.4 mm)
At 6 IPM
(2.5 mm/s)
0.82 353
*While idling
**10% High line condition
4-2. Specifications For Torch
Air-cooled torch for plasma arc cutting (PAC)
35% duty cycle
Gas flow/pressure: 1 SCFM (28.3 L/min) at 50 PSI (345 kPa)
Safety interlock devices shut down power source
Safety trigger guard
Cutting capacity: see Section 4-1
4-3. Duty Cycle And Overheating
Duty Cycle is percentage of 10 min-
utes that unit can cut at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, Temperature
trouble light goes On, and cooling
fan runs. Wait fifteen minutes for
unit to cool or temperature light to
go off. Reduce amperage or duty
cycle before cutting or gouging.
Y Exceeding duty cycle can
damage unit and void
warranty.
Overheating
duty1 4/95 − 802 588-A
3-1/2 Minutes Cutting 6-1/2 Minutes Resting
0
15
Minutes