ESAB Digipulse 450i Power Source for 575-Volt Service User manual

ESAB
Brand
ESAB
Model
Digipulse 450i Power Source for 575-Volt Service
Type
User manual

ESAB Digipulse 450i Power Source for 575-Volt Service The ESAB Digipulse 450i Power Source is designed to provide a stable and reliable power source for welding applications. It is capable of delivering up to 450 amps of output current at a duty cycle of 60%, or 350 amps at 100% duty cycle. The unit has an open circuit voltage of 72 volts and operates on 575 volts AC, 3 phase, 60 Hz input power.

The unit is equipped with a number of features that make it ideal for a variety of welding applications, including:

  • Voltage Changeover Input Terminal Board: Allows the unit to be easily converted to operate on different input voltages.

ESAB Digipulse 450i Power Source for 575-Volt Service The ESAB Digipulse 450i Power Source is designed to provide a stable and reliable power source for welding applications. It is capable of delivering up to 450 amps of output current at a duty cycle of 60%, or 350 amps at 100% duty cycle. The unit has an open circuit voltage of 72 volts and operates on 575 volts AC, 3 phase, 60 Hz input power.

The unit is equipped with a number of features that make it ideal for a variety of welding applications, including:

  • Voltage Changeover Input Terminal Board: Allows the unit to be easily converted to operate on different input voltages.
SUPPLEMENT to Form 15-014
DIGIPULSE 450i POWER SOURCE for 575-VOLT SERVICE
Part No. 31238
I. General
This supplement covers the Digipulse 450i Power Source spe-
cifically designed for 575 Volt — 60 Hertz service. It is identi-
cal to the standard Digipulse 450i, P/N 31120 unit covered in
Form 15-014 except for the following:
IMPORTANT
As shipped from the factory, all 575-volt units are hooked-
up to operate “only” from a 575 volt input. This unit “does
not” contain a Voltage Changeover Input Terminal Board
assembly.
A. Replacement Parts:
Main Transformer Assy. (MTR) - P/N 31685 replaces P/N
31133.
Control Transformer Assy. (MTR) - P/N 31686 replaces
P/N 31134.
Power P.C. Board Assy. (PB1 and PB2) — P/N 31423 re-
places P/N 674991.
Capacitors (C5 and C6) — P/N 672348 replaces 950516.
II. Form 15-014 is applicable to this unit except as
follows:
A. See Revised Specification Table following.
B. See Revised Table for Recommended Input Conduc-
tors and Line Fuses.
Note that the customer can either use the factory supplied
input power cable (No. 6 AWG, 4/c, type SO, 90° C, 12-ft. lg.),
or provide his own leads per the Input Table.
Rated Input Input & Gnd. Time-Delay
Conductor Fuse Size
Volts Amps CU/AWG Amps
575 32 8 50
* Sized per National Electric Code for 90° C rated copper conductors @ 30° C
ambient. Not more than three conductors in raceway or cable. Local codes
should be followed if they specify sizes other than those listed above.
SPECIFICATIONS
Rated Output @:
60% Duty ........................................... 450 amps @ 38 vdc
100% Duty ......................................... 350 amps @ 34 vdc
Open Circuit Voltage ................................................. 72 vdc
Input Voltage ....................................... 575 vac, 3 ph, 60 Hz
Input Current @ Rated Load ................ 32 amps @ 575 vac
Dimensions:
15.25" (387 mm) W x 23.0" (584 mm) D x 15.5" (394 mm) H
Weight, Net .................................................. 161 lbs (73 kg)
C. Changes To Troubleshooting Section VI, as follows:
All resistance and low voltage check readings described in
15-014 are applicable to this unit, except those designated
with the symbol H.V. . This symbol indicates “high” voltage
checks which are not applicable, and cannot be safely made
in this unit because it does not contain an input terminal board
— reference the Capacitor Warning in the booklet (15-014).
D. Revised Wiring Diagram Contained Herein.
E. Revised Schematic Diagram Contained Herein.
Be sure this information reaches the operator.
You can get extra copies through your supplier.
F-15-015
F-15-015
June, 1995
2
Schematic Diagram - Digipulse 450/575 V.
D-31683
3
Wiring Diagram - Digipulse 450/575 V. (sh. 1 of 2)
D-31684
Wiring Diagram - Digipulse 450/575 V. (sh. 2 of 2)
F-15-015 6/95 Printed in U.S.A.
D-31684
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ESAB Digipulse 450i Power Source for 575-Volt Service User manual

ESAB
Brand
ESAB
Model
Digipulse 450i Power Source for 575-Volt Service
Type
User manual

ESAB Digipulse 450i Power Source for 575-Volt Service The ESAB Digipulse 450i Power Source is designed to provide a stable and reliable power source for welding applications. It is capable of delivering up to 450 amps of output current at a duty cycle of 60%, or 350 amps at 100% duty cycle. The unit has an open circuit voltage of 72 volts and operates on 575 volts AC, 3 phase, 60 Hz input power.

The unit is equipped with a number of features that make it ideal for a variety of welding applications, including:

  • Voltage Changeover Input Terminal Board: Allows the unit to be easily converted to operate on different input voltages.
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