Input Connections; Line Cord Connection; 230 Volt Input Connection - Lincoln Electric PRO-MIG 175 IM810 Operator's Manual

A-6

Line Cord Connection

A 3 conductor line cord with a 50 amp, 250 volt, three-
prong plug (NEMA Type 6-50P) is factory installed.
Connect this plug to a mating grounded receptacle
which is connected to an appropriate power supply
per the U.S. National Electric Code and any applica-
ble local codes.
Type 75°C
Wire in Conduit,
Input Copper Cond.
Voltage Hertz AWG Size
208/230 60 8
WARNING
This welding machine must be connected to a
power source in accordance with applicable elec-
trical codes.
The Electrical Code provides standards for
amperage handling capability of supply conduc-
tors based on duty cycle of the welding source.
If there is any question about the installation
meeting applicable electrical code requirements,
consult a qualified electrician.
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INSTALLATION
CONNECT TO A SYSTEM
GROUNDING WIRE. SEE
THE UNITED STATES
NATIONAL ELECTRICAL
CODE AND/OR LOCAL
CODES FOR OTHER
DETAILS AND MEANS FOR
PROPER GROUNDING.
CONNECT TO HOT WIRES
OF A THREE-WIRE SINGLE
PHASE SYSTEM OR TO
ONE PHASE OF A TWO OR
THREE PHASE SYSTEM.
Grounding
Wire Fuse
Copper Size
Cond. (Super
AWG Size Lag)
10 40
Pro-MIG 175
ELECTRICAL INPUT CONNECTION FOR
RATED OUTPUT
WARNING
ELECTRIC SHOCK can kill.
• Disconnect input power by remov-
ing plug from receptacle before
working inside Pro-MIG 175.
• Use only grounded receptacle.
• Do not touch electrically "hot" parts inside Pro-
MIG 175.
• Have qualified personnel do the maintenance
and troubleshooting work.
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230 Volt Input Connection

The Pro-MIG 175 is shipped from the factory connect-
ed for 230 volt input power. If the welder has been
reconnected for 208 volt input power and 230 volt
input is desired, perform the following reconnection
instructions:
1. Disconnect welder from input power and remove
case side panel.
2. Remove lead marked "H3" from CR1 on the control
P.C. Board.
3. Remove tape securing H1 to lead sleeving and
connect H1 to CR1.
4. Insulate unused H3 lead for 300 volts with electri-
cal tape and secure to lead sleeving.
5. Reinstall case side before connecting input power.
208 Volt Input Connection
1. Disconnect welder from input power and remove
case side.
2. Remove lead marked "H1" from CR1 on the control
P.C. Board.
3. Remove tape securing H3 to lead sleeving and
connect H3 to CR1.
4. Insulate unused H1 lead for 300V with electrical
tape and secure to lead sleeving.
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