Installation – Lincoln Electric IDEALARC R3R-500 User Manual

Page 15

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The output (welding) cables are connected to the out-
put terminals marked “+” and “-”. See Table A.1 for
recommended cable sizes for the combined lengths of
electrode and work cables. The output terminals are
located at the lower right and lower left corners of the
front panel. Strain relief for the cables is provided by
routing them through the rectangular holes in the base
before connecting them to the output terminals. See
Figure A.4.

NOTE: If the welder comes equipped with the polarity

switch option, the output terminals are labeled
“electrode” and “to work.”

The output terminals are energized at all times.

INSTALLATION

A-9

A-9

IDEALARC R3R

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FIGURE A.4 - OUTPUT TERMINAL CONNECTIONS

1

2

3

1. NEGATIVE (-) WELDING CABLE CONNECTION
2. POSITIVE (+) WELDING CABLE CONNECTION
3. CABLE STRAIN RELIEF HOLES

OUTPUT CONNECTIONS (STICK, TIG, AIR/CARBON ARC CUTTING)

WARNING

TABLE A.1 - CABLE SIZES FOR COMBINED LENGTHS OF COPPER ELECTRODE

AND WORK CABLES

Up to 100 ft

100 - 150 ft

150 - 200 ft

200 - 250 ft

Machine Size

(30 m)

(30 - 46 m)

(46 - 61 m)

(67 - 76 m)

300 Amp

1/0

1/0

2/0

3/0

(60% Duty

54 mm

2

54 mm

2

68 mm

2

86 mm

2

Cycle)

400 Amp

2/0

2/0

3/0

4/0

(60% Duty

68 mm

2

68 mm

2

86 mm

2

108 mm

2

Cycle)

500 Amp

2/0

3/0

3/0

4/0

(60% Duty

68 mm

2

86 mm

2

86 mm

2

108 mm

2

Cycle)

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