Installation, Input connections, Warning – Lincoln Electric PRO-CUT 55 SVM140-A User Manual

Page 10

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INPUT CONNECTIONS

ELECTRIC SHOCK can kill.

• Have a qualified electrician install and

service this equipment.

• Turn the input power off at the fuse box

before working on this equipment.

• Do not touch electrically hot parts.

Before installing the machine, check that input supply
voltage, phase, and frequency are the same as the
machine’s voltage, phase, and frequency as specified
on the machine’s rating plate. See Figure A.1.

The Pro-Cut 55 should be connected only by a quali-
fied electrician. Installation should be made in accor-
dance with the U.S. National Electrical Code, all local
codes, and the information detailed below.

GROUND CONNECTION

The frame of the Pro-Cut 55 must be properly ground-
ed. A ground terminal marked with the symbol

mounted on the case bottom directly behind the input
power switch for this purpose. The ground lead of the
input power cord that is attached to the machine must
be connected to this ground terminal. See the
National Electric Code for details on proper grounding
methods. Install in accordance with all local and
national electrical codes.

INPUT POWER CORD CONNECTOR
INSTALLATION

The Pro-Cut 55 is supplied with one 11 foot (3.35m) #8
AWG 3 lead input power cord already connected to
the machine. A cord connector provides a strain relief
for the input power cord as it passes through the left
rear access hole. The cord connector is designed for
a cord diameter of .40 - 1.03 in (10.2 - 26.2mm) if it
becomes necessary to install a different input cord.
See Figure A.1.

For three phase connection: Replace the input power
cord with a #10 AWG 4 lead cable.

Connect the leads of the cable to a fused power panel.
Make sure the green lead is connected to the panel
and the panel is connected to a good earth ground.

Install in accordance with all local and national electric
codes.

INPUT WIRE AND FUSE SIZE

Fuse the input circuit with the super lag fuses or delay
type circuit breakers recommended on the Technical
Specifications page. Choose an input and grounding
wire size according to local or national codes; also see
the Technical Specifications page. Using fuses or
circuit breakers smaller than recommended may result
in “nuisance” shut-offs from inrush currents, even if
you are not cutting at high currents.

INSTALLATION

A-5

PRO-CUT 55