EX-TRAFIRE
®
75SD
Operator Manual, Revision T-5
2-12
Specifications: plasma arc power supply 3 x 220 V
Open circuit voltage (U
0
)
300 VDC
Output characteristic*
* Curve is defined as the output voltage versus output current
Drooping
Input voltage (U
1
)
3 x 220 VAC ± 15%
Rated output current (I
2
)
30 - 75 A
Standard rated output voltage (U
2
) @ 75A
170VDC
X
100%
U
2
170 V
Cutting current at 100% duty cycle (A)
3 x 220 VAC±15%
75 A
Maximum input power
3 x 220 VAC±15%
14�71 kVA
Duty cycle (X*) at 40º C at rated conditions (U
1
, I
1
, U
2
, I
2
)
*X=Ton/Tbase,
Ton = time, minutes
Tbase =10 minutes
U
1rms
X
3 x 220 VAC±15%
100%
Operating temperature
−10º – +40º C
Rated AC phases (PH) and line frequency (Hz)
Model CE
PH
Hz
3
50-60
Rated input voltage (U
1
), rated input current (I
1
) and
effective input current (I
1eff
*) at rated output voltage (U
2
)
and rated output current (I
2
) - for cutting only�
* I
1eff
= (I
1
) √X
used to determine rating of power cord�
eff = effective
rms = root mean square
U
1rms
I
1rms
I
1eff
3 x 220 VAC ± 15%
38�6* A
38�6* A
This equipment conforms to IEC 61000-3-12,
EN 60974-1
Isolation class
H/F
IP Code – Degree of protection provided by enclosure
IP23S*
IP – “International Protection”
2 – No ingress foreign objects ≥ 12�5 mm
3 – No harmful ingress spraying water�
S – fan stationary during water test�
*
WARNING: ! DO NOT OPERATE IN RAIN !
Toppling, tilting ( with or without Wheel kit)
Up to 15º incline
Gas type
Air
Nitrogen
Gas quality specification
Recommended Air quality:
ISO 8573-1 Class 1�2�2�
Purity ≥ 99�99%
Air max� particle size: 0�1 microns,
class 1 ref� to ISO 8573,
Air max� oil: 0�1 mg / m3,
class 2 ref�: ISO 8573,
Air max� dewpoint: +3° C,
class 4 ref� to ISO 8573
Gas quality
Clean, moisture-free, without oil
Gas input pressure and flow
7 bar / 101 psi 120 l/min
