SECTION 1
DESCRIPTION
5
1.1 INTRODUCTION
The SVI 450i cvcc is a high performance constant voltage
(cv)/constant current (cc) 450-ampere industrial inverter
power source that is designed with adjustable output
(voltage or current), slope, and inductance. Exclusive
power MOSFET inverter technology combined with solid
state electronics provides state-of-the-art, multi-process
welding performance including MIG (short arc, spray arc,
cored wire), Stick, TIG, and air carbon arc gouging. The
SVI 450i cvcc offers all this versatility and performance in
one compact power source.
The power source is designed to operate in the cv mode
for outstanding MIG short arc performance as well as MIG
spray-arc and cored wire welding. It is compatible with
ESAB's full line of digital and conventional wire feeders for
unmatched accuracy and performance.
The constant current mode for Stick, TIG (scratch-start),
and air carbon arc gouging applications is provided by
connecting one of the remote control devices and select-
ing the cc process mode.
The power source's electronic output (voltage or current)
adjustment provides full-range regulation either locally
from the front panel or from a remote control. A conve-
nient panel-mounted digital meter provides selectable
output voltage or current readings for welding accuracy.
The panel-mounted 3-step slope selector and variable
inductance control allows the operator to select the opti-
mum cv slope/curve characteristic and/or inductance
condition required for your MIG welding application. Refer
to table 1-1 for specifications.
1.2 OPTIONAL ACCESSORIES
A.
To avoid duplication of MIG accessories which
may or may not be required for the various MIG
systems, please refer to the individual wire feeder
or control instruction booklets provided for your
system.
B.
For applicable Stick/TIG accessories, refer to
figure 2-3 and/or the following:
1. TC-2B Torch Controls (30 ft lg), P/N 33839
2. FC-5B Foot Control (30 ft lg), P/N 33646
3. FC-5B EHD (Extra Heavy Duty) Foot Control
(30 ft lg), P/N 33841
4. HC-3B Hand Control (30 ft lg), P/N 33838
5. HC-4B Hand Control w/Arc Force (30 ft lg),
P/N 33840
6. Ultra-Pulse 450i Mig Pulse Pendant Control,
P/N 34946. Easy to use synergic pulse control
automatically provides precise parameters
for pulsed MIG welding. Must be used with
Mig 4HD wire feeder. (Control cable (8 ft
lg) included.)
7. Cart, P/N 31700. Provides complete mobility
for power source, wire feeder, gas cylinder(s)/
water cooler (vertical).
Table 1-1. SVI 450i cvcc Specifications
Input Voltage
208 V ac, 1 or 3 phase, 60 Hz
230 V ac, 1 or 3 phase, 60 Hz
460 V ac, 3 phase, 60 Hz
Input Current @ Rated Load
80 A
65 A
40 A
Open Circuit Voltage
72 V dc
Rated Output @ 60% Duty Cycle
450 A @ 38 V dc, 3 phase
275 A @ 31 V dc, 1 phase
450 A @ 38 V dc, 3 phase
275 A @ 31 V dc, 1 phase
450 A @ 38 V dc, 3 phase
275 A @ 31 V dc, 1 phase
Dimensions
width
length
height
15.25" (385 mm)
24.25" (616 mm)
15.75" (400 mm) + 2" (51 mm) for handle
Shipping Weight
Net Weight
172 lbs (78 kg)
161 lbs (74 kg)
