Safety Precautions; Location; High Frequency Protection; Weld Cable Sizes - Lincoln Electric RED-D-ARC LN-25 PRO EXTREME Operator's Manual

A-2

SAFETY PRECAUTIONS

WARNING
ELECTRIC SHOCK CAN KILL.
• Turn the input power OFF at the
disconnect switch or fuse box
before attempting to connect or
disconnect input power lines, out-
put cables or control cables.
• Only qualified personnel should
perform this installation.
• Do not touch metal portions of the LN-25™ PRO
EXTREME work clip when the welding power
source is on.
• Do not attach the work clip to the wire feeder.
• Connect the work clip directly to the work, as
close as possible to the welding arc.
• Turn power off at the welding power source
before disconnecting the work clip from the
work.
• Only use on power sources with open circuit
voltages less than 110 VDC.
------------------------------------------------------------------------

LOCATION

For best wire feeding performance, place the LN-
25™ PRO EXTREME on a stable and dry surface.
Keep the wire feeder in a vertical position. Do not
operate the wire feeder on an angled surface of
more than 15 degrees.
Do not submerge the LN-25™ PRO EXTREME .
RECOMMENDED CABLE SIZES (RUBBER COVERED COPPER - RATED 167°F or 75°C)**
AMPERES PERCENT
DUTY
CYCLE
200 60
200 100
225 20
225 40 & 30
250 30
250 40
250 60
250 100
300 60
325 100
350 60
400 60
400 100
500 60
** Tabled values are for operation at ambient temperatures of 104°F(40°C) and below. Applications above 104°F(40°C) may require cables
larger than recommended, or cables rated higher than 167°F(75°C).
INSTALLATION
TABLE A.1
CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK CABLES
0 to 50Ft.
50 to 100Ft.
(0 to15m) (15 to 30m)
2
2
4 or 5
3
3
2
1
1
1
2/0
1/0
2/0
3/0
2/0
RED-D-ARC LN-25™ PRO EXTREME
The LN-25™ PRO EXTREME is rated IP23 and is
suitable for outdoor use.
The handle of the LN-25™ PRO EXTREME is
intended for moving the wire feeder about the work
place only.
When suspending a wire feeder, insulate the
hanging device from the wire feeder enclosure.

HIGH FREQUENCY PROTECTION

Locate the LN-25™ PRO EXTREME away from
radio controlled machinery. The normal operation of
the LN-25™ PRO EXTREME may adversely affect
the operation of RF controlled equipment, which
may result in bodily injury or damage to the equip-
ment.
------------------------------------------------------------------------
WELD CABLE SIZE
Table A.1 located below are copper cable sizes rec-
ommended for different currents and duty cycles.
Lengths stipulated are the distance from the welder to
work and back to the welder again. Cable sizes are
increased for greater lengths primarily for the purpose
of minimizing cable drop.
100 to 150 Ft.
(30 to 46m)
2 2
2 2
3 2
3 2
3 2
2 1
1 1
1 1
1 1
2/0 2/0
1/0 2/0
2/0 2/0
3/0
3/0
2/0 3/0
CAUTION
150 to 200 Ft.
200 to 250 Ft.
(46 to 61m) (61 to 76m)
1 1/0
1 1/0
1 1/0
1 1/0
1 1/0
1
1/0
1 1/0
1
1/0
1/0 2/0
2/0
3/0
2/0 3/0
3/0
4/0
3/0 4/0
3/0
4/0
A-2