Section 4 − Installation; Specifications; Specifications For Torch; Duty Cycle And Overheating - Miller Spectrum 125C Manuel Du Propriétaire

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4-1. Specifications

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
Compressor output: 1.2 scfm (28.3 L/min) at 50 PSI (345 kPa) at 700 ft (213 m)
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-2248 Page 10
SECTION 4 − INSTALLATION
Secondary
Volts (DC)
20A
110
6-1/2 Minutes Resting
0
15
Minutes
Secondary
Amperes
KW
KVA
12
2.01
Rated
Power
Cutting
Factor
Capacity
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 − 802 459-B
Max**
OCV
(DC)
335
void

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