Tweco 190 MIG Thermal Arc Fabricator - Manual (Page 24)

FABRICATOR 190 WELDING MACHINE
INSTALLATION 3-2 Manual No. 0-4838
3.04 Mains Supply Voltage Requirements
The Mains supply voltage should be within ± 10% of the rated Mains supply voltage. Too low a voltage may cause poor
welding performance or the wirefeeder malfunction. Too high a supply voltage will cause components to overheat and
possibly fail. The Fabricator 190 is supplied with a 10 AWG x 3 supply lead.
Install a power outlet for each Power Supply and fit fuses as per the machine specifications.
!
WARNING
Thermal Arc advises that your Fabricator be electrically connected by a qualified electrical trades-person.
The Fabricator 190 Power Supply is factory connected for the following input power supply voltage:
Input Power
Supply Lead Size
Lead Current
Rating
Lead
Length
Machine
Voltage Setting Duty Cycle
10 AWG x 3 40 Amps 10ft (3m) 230V 190A @ 15%
Table 3-1: Factory Fitted Input Power Supply Leads Fitted to the Fabricator 190
3.05 Alternative Mains Supply Voltages
!
WARNING
The Fabricator 190 input power supply lead should be replaced with leads as specified in Table 3-2 when
the Fabricators input power supply voltage is changed.
The Power Supply is suitable for use on the following input power supply voltages:
Input Power Supply
Voltage Setting
Primary Input
Power Lead Size Lead Length
Input Power
Outlet Size Fuse Size Duty Cycle
208V 1ø 10AWG (5mm2) 3M 50 Amps 45 Amp 250A @ 30%
230V 1ø 10AWG (5mm2) 3M 50 Amps 45 Amp 250A @ 30%
Table 3-2: Mains Supply Lead Sizes for Alternative Mains Supply Voltages
3. Remove the black wire from the current location and
Insert the uninsulated wires into the new voltage lo-
cation. Secure by tightening the set screw onto the
uninsulated portion of the wires. Secure the first set
screw as well.
National Electrical Code Standards permit the rating of
the fuse or thermal circuit breaker protecting the circuit
conductors to be double the standard rating for any circuit
used exclusively for an electric arc welder. Check local
requirements for your situation in this regard.
Changing the Voltage Selection
1. Disconnect the power supply from the main power
source.
2. Refer to Figure 3-1. The power supply comes wired
for 230V. Locate the black input power wire secured
to the input voltage selection block. Loosen the set
screw for both voltage locations.
Art # A-08417
Figure 3-1: Voltage selections for Fabricator 190