Section 4 − Installation; Specifications For Power Source; Specifications For Torch; Duty Cycle And Overheating - Hobart AirForce 250A Owner's Manual

4-1. Specifications For Power Source

Primary Primary Primary Service
Volts Amperes (Recommended)
20.32
120
(0.25*)
*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

3-1/2 Minutes Cutting
Overheating
OM-928 Page 10
SECTION 4 − INSTALLATION
Secondary
Volts (DC)
20A 110
6-1/2 Minutes Resting
0
Minutes
Secondary
Amperes KW
12 2.01
15
Rated
Power
Cutting
KVA Capacity Factor
0.25 in
(6.4 mm)
2.44 0.82
At 6 IPM
(2.5 mm/s)
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
warranty.
duty1 4/95 − 802 588-A
Max**
OCV
(DC)
353
void