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SECTION 3 SYSTEM:
INSTALLATION
3.01
Unpacking
1. Use the packing lists to identify and account
for each item.
2. Inspect each item for possible shipping
damage. If damage is evident, contact your
distributor and / or shipping company before
proceeding with the installation.
3. Record Power Supply and Torch model and
serial numbers, purchase date and vendor
name, in the information block at the front of
this manual.
3.02
Lifting Options
The Power Supply includes a handle for hand lifting
only. Be sure unit is lifted and transported safely and
securely.
WARNING
Do not touch live electrical parts.
Disconnect input power cord before moving unit.
WARNING
!
FALLING EQUIPMENT can cause serious personal
injury and can damage equipment.
HANDLE is not for mechanical lifting.
• Only persons of adequate physical strength
should lift the unit.
• Lift unit by the handles, using two hands. Do
not use straps for lifting.
• Use optional cart or similar device of adequate
capacity to move unit.
• Place unit on a proper skid and secure in place
before transporting with a fork lift or other ve-
hicle.
Manual 0-5389
3.03
Primary Input Power Connections
CAUTION
!
Check your power source for correct voltage before
plugging in or connecting the unit. The primary
power source, fuse, and any extension cords used
must conform to local electrical code and the
recommended circuit protection and wiring require-
ments as specified in Section 2..
Connect three-phase input power cable as shown in
the illustration below.
Input Power Cable Connections
Three Phase Input Power Wiring
WARNING
Disconnect input power from the power supply and
input cable before attempting this procedure.
These instructions are for changing the input power
and or cable on the 400 VAC Power Supply to Three
- Phase input power.
1. Remove the Power Supply cover per instruc-
tions found in Section 5.
2. Disconnect the original input power cable
from the main input contactor and the chassis
ground connection.
3. Loosen the through - hole protector on the
back panel of the power supply. Pull the
original power cable out of the power supply.
4. Using a customer supplied four - conductor
input power cable for the voltage desired, strip
back the insulation on the individual wires.
5. Pass the cable being used through the access
opening in the back panel of the power supply.
Refer to Section 2 for power cable specifica-
tions.
CAUTION
!
The primary power source and power cable must
conform to local electrical code and the recom-
mended circuit protection and wiring requirements
(refer to table in Section 2).
INSTALLATION
ESAB CUTMASTER 120
Three-Phase (3ø)
L1
L2
L3
L4
GND
3-1
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