ESAB CUTMASTER 120
CAUTION
!
The primary power source and pow-
er cable must conform to local elec-
trical code and the recommended
circuit protection and wiring require-
ments (refer to table in Section 2).
6. Connect the wires as follows.
• Wires to L1, L2 and L3 input. It does not
matter what order these wires are attached.
See previous illustration and on label in the
power supply.
• Green / Yellow wire to Ground.
7. With a little slack in the wires, tighten the through
- hole protector to secure the power cable.
8. Reinstall the Power Supply cover per instructions
found in section 5.
9. Connect the opposite end of individual wires to
a customer supplied plug or main disconnect.
10. Connect the input power cable (or close the main
disconnect switch) to supply power.
3.04 Gas Connections
Connecting Gas Supply to Unit
The connection is the same for compressed air or high
pressure cylinders. Refer to the following two subsec-
tions if an optional air line filter is to be installed.
1. Connect the air line to the inlet port. The illustra-
tion shows typical fittings as an example.
NOTE!
For a secure seal, apply thread
sealant to the fitting threads, accord-
ing to manufacturer's instructions.
Do not use Teflon tape as a thread
sealer, as small particles of the tape
may break off and block the small air
passages in the torch.
3-2
INSTALLATION
Regulator/Filter
Assembly
Inlet Port
Hose Clamp
1/4 NPT or ISO-R
to 1/4" (6mm) Fitting
Gas Supply
Hose
Art # A-07943
Air Connection to Inlet Port
Installing Optional Single - Stage Air Filter
An optional filter kit is recommended for improved filter-
ing with compressed air, to keep moisture and debris
out of the torch.
1. Attach the Single - Stage Filter Hose to the Inlet
Port.
2. Attach the Filter Assembly to the filter hose.
3. Connect the air line to the Filter. The illustration
shows typical fittings as an example.
Manual 0-5398
NOTE!
For a secure seal, apply thread sealant to the fitting threads, according to the maker's
instructions. Do Not use Teflon tape as a thread sealer, as small particles of the tape may
break off and block the small air passages in the torch. Connect as follows:
Hose Clamp
Gas Supply
Hose
Optional Single - Stage Filter Installation
Installing Optional Two - Stage Air Filter Kit
This optional two - stage air line filter is also for use on compressed air shop systems. Filter removes moisture and
contaminants to at least 5 microns.
Connect the air supply as follows:
1. Attach the Two Stage Filter bracket to the back of the power supply per instructions supplied with the filter
assembly.
Manual 0-5398
INSTALLATION
ESAB CUTMASTER 120
Regulator/Filter
Assembly
Inlet Port
Art # A-07944
1/4 NPT to 1/4"
(6mm) Fitting
3-3