Lincoln Electric SP-135 PLUS IM725 - Manual (Page 13)

A-6 A-6 INSTALLATION
SP-135 PLUS
CODE REQUIREMENTS FOR INPUT
CONNECTIONS
This welding machine must be connected to
power source in accordance with applicable elec-
trical codes.
The United States National Electrical Code (Article
630-B, 1990 Edition) provides standards for amperage
handling capability of supply conductors 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.
Requirements For Rated Output
A power cord with a 15 amp, 125 volt, three prong
plug (NEMA Type 5-15P) is factory installed on the
SP-135 PLUS. Connect this plug to a mating ground-
ed receptacle which is connected to a 20 amp branch
circuit with a nominal voltage rating of 115 to 125
volts, 60 Hertz, AC only.
The rated output with this installation is 90 amps, 18
Volts, 20% duty cycle (2 minutes of every 10 minutes
used for welding).
Do not connect the SP-135 PLUS to an input
power supply with a rated voltage that is greater
than 125 volts.
Do not remove the power cord ground prong.
Requirements For Maximum Output
In order to utilize the maximum output capability of the
machine, a branch circuit capable of 25 amps at 115
to 125 volts, 60 Hertz is required. This generally
applies when welding steel that is equal to or greater
than 12 gauge, 0.105” (2.5 mm) in thickness.
WARNING
CAUTION