Lincoln Electric IM794 manual Line Cord Connection, Electrical Input Connection for Rated Output

A-6 INSTALLATION 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 applicable local codes.

			Grounding
		Type 75°C	Wire	Fuse
		Wire in Conduit,	Copper	Size
Input		Copper Cond.	Cond.	(Super
Voltage	Hertz	AWG Size	AWG Size	Lag)
208/230	60	8	10	40

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.

WARNING

This welding machine must be connected to a power source in accordance with applicable elec- trical codes.

The National Electrical Code provides standards for amperage handling capability of supply con- ductors 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.

ELECTRICAL INPUT CONNECTION FOR RATED OUTPUT

WARNING

ELECTRIC SHOCK can kill.

• Disconnect input power by removing plug from receptacle before working inside SP-170T.

•Use only grounded receptacle.

•Do not touch electrically “hot” parts inside SP-170T.

•Have qualified personnel do the maintenance and troubleshooting work.

230 Volt Input Connection

The SP-170T is shipped from the factory connected for 230 volt input power. If the welder has been recon- nected for 208 volt input power and 230 volt input is desired, perform the following reconnection instruc- tions:

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.

5.Reinstall case side before connecting input power.

SP-170T