Power supply
SPECIFICATIONS
1
2-2 powermax1250 Operator Manual
Rated open circuit voltage (U
0
) 300 VDC
OutputCharacteristic* Drooping
*Defined as a plot of output voltage
versus output current
Rated output current (I
2
) 25A – 80A
Hypertherm standard rated output 150 VDC
voltage (U
2
)
Duty cycle (X*) at 104°F (40°C) at U
1
– Volts AC rms X
rated conditions (U
1
, I
1
, U
2
, I
2
) 200-208 VAC 1PH 40%
230-240 VAC 1PH 50%
*X = T
on
/T
base
, 480 VAC 1PH 60%
T
on
= time, minutes 200-208 VAC 3PH 50%
T
base
= 10 minutes 230-240 VAC 3PH 60%
(See the data plate on the power supply for 380-400-415 VAC 3PH 60%
more information on duty cycle and for IEC 480 VAC 3PH 60%
ratings.) 600 VAC 3PH 60%
Operating temperature 14
o
to 104
o
F (-10
o
to 40
o
C)
Rated AC phases (PH) and line frequency (Hz) PH Hz
Standard model 1-3 50-60
CE model 3 50-60
Rated input voltage (U
1
), rated input U
1
– Volts AC rms I
1
-Amps rms I
1
eff
current (I
1
) and I
1
eff* at rated output 200-208 VAC 1PH 70 44
U
2
and I
2
– cutting only. 230-240 VAC 1PH 60 42
480 VAC 1PH 30 23
200-208 VAC 3PH 40 28
*I
1
eff = (I
1
) X used to determine 230-240 VAC 3PH 36 28
rating of power cord. 380-400-415 VAC 3PH 21 16
480 VAC 3PH 17 13
600 VAC 3PH 16.5 13
Power factor U
1
– Volts AC rms Harmonic power factor Displacement
power factor
200-208 VAC 1PH 0.99 0.99
230-240 VAC 1PH 0.99 0.99
480 VAC 1PH 0.91 0.99
200-208 VAC 3PH 0.94 0.99
230-240 VAC 3PH 0.94 0.99
380-400-415 VAC 3PH 0.94 0.99
480 VAC 3PH 0.94 0.99
600 VAC 3PH 0.80 0.99
R
sce
– short circuit ratio—CE model only U
1
– Volts AC rms, 3PH R
sce
400 VAC 228
230 VAC 163
This equipment conforms to IEC 61000-3-12,
provided that R
sce min
= 228 at 400VAC 3PH and
163 at 230 VAC 3PH.
IP code—degree of protection IP23CS*
provided by enclosure IP – “International Protection”
2 – No ingress foreign objects
>
=12.5mm (0.5 in)
3 – No harmful ingress spraying water
C – AC line circuits protected against ingress of
tool
>
=2.5 mm dia. x 100 mm long
(0.1 inch x 4.0 inch)
S – fan stationary during water test
*
WARNING: DO NOT OPERATE IN RAIN
Toppling, tilting (with or without wheel kit) Up to 15
o
incline
.
Gas type Air Nitrogen
Gas quality Clean, moisture-free, oil-free
Gas inlet pressure and flow See
Section 3, Setup