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SAFETY PRECAUTIONS
WARNING
ELECTRIC SHOCK can kill.
• TURN THE INPUT POWER OFF AT
THE DISCONNECT SWITCH BEFORE
ATTEMPTING TO CONNECT OR DIS-
CONNECT INPUT POWER LINES, OUTPUT
CABLES, OR CONTROL CABLES.
• Only qualified personnel should perform this
installation.
• Connect the green/yellow lead of the power
cord to ground per National Electrical Code.
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SELECT SUITABLE LOCATION
The EX350i will operate in harsh environments. Even
so, it is important that simple preventative measures
are followed in order to assure long life and reliable
operation.
• The machine must be located where there is free cir-
culation of clean air such that air movement in the
back, out the sides and bottom will not be restricted.
• Dirt and dust that can be drawn into the machine
should be kept to a minimum. Failure to observe
these precautions can result in excessive operating
temperatures and nuisance shutdown.
• Keep machine dry. Shelter from rain and snow. Do
not place on wet ground or in puddles.
CAUTION
• DO NOT MOUNT OVER COMBUSTIBLE SURFACES.
Where there is a combustible surface directly
under stationary or fixed electrical equipment,
that surface shall be covered with a steel plate at
least .06"(1.6mm) thick, which shall extend not
less than 5.90"(150mm) beyond the equipment on
all sides.
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STACKING
EX350i cannot be stacked.
TILTING
Place the machine directly on a secure, level surface
or on a recommended undercarriage. The machine
may topple over if this procedure is not followed.
INPUT AND GROUNDING CONNECTIONS
• Only a qualified electrician should connect the
EX350i. Installation should be made in accordance
with the appropriate National Electrical Code, all
local codes and the information detailed below.
• When received directly from the factory, multiple
voltage machines are internally connected for
460VAC. If 460VAC is the desired input, then the
machine may be connected to the power system
without any setup required inside the machine.
• Initial 200VAC - 415VAC and 575VAC operation will
require an Input voltage panel setup.
INSTALLATION
• Open the access panel on the rear of the machine.
• For 200 or 230: Position the large switch to 200-
230.
For higher voltages: Position the large switch to
380-575.
• Move the "A" lead to the appropriate terminal.
POWER CORD CONNECTION
A 25 ft. power cord is provided and wired into the
machine. Follow the power cord connection instruc-
tions.
• Incorrect connection may result in equipment
damage.
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Single Phase Input
Connect green lead to ground per National Electrical
Code.
Connect black and white or brown leads to power.
Wrap red lead with tape to provide 600V insulation.
Three Phase Input
Connect green lead to ground per National Electric
Code.
Connect black, red and white leads to power.
CONNECTIONS OF WIRE FEEDERS TO EX350I
LN-25 Connection Instructions
-Not recommended for Pulse Welding with the
Advanced Process Kit ).
• Turn the EX350i power switch "off".
• Connect the electrode cable to the output terminal of
polarity required by electrode. Connect the work lead
to the other terminal.
• LN-25 with Remote Control options can be used with
the EX350i. The 14 pin (K444-2) remote can be con-
nected directly to the 14 pin amphenol. The 42 Volt
Remote Voltage and Output Control (K624-1) Kit can
be connected to the EX350i 24/42 VAC amphenol
using Remote Control Cable assembly K627- [ ]. LN-
25s with a K431-1 remote kit can be connected to
the 24/42 VAC amphenol using a K432 cable and a
K876 adapter. (See connection diagram S19899) to
connect it to one of the 14-pin amphenols. Or the
K432 cable could be modified with a K867 Universal
Adapter Plug (See connection diagram S19405) to
connect it to the 24/42 VAC 14-pin amphenol.
EX350i
CAUTION
LI NC
EL
OL
N
EC
TR
IC
WAR
IN
NING
V E
R T
E C
REM
OTE
V 3
5 0
-P
R O
POW
ER
ON
OFF
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BLACK
GREEN
RED
WHITE or BROWN
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