A-4
INSTALLATION
POWER WAVE 455/R
A-4
Connect L1, L2, L3 and ground according to the Input
Supply Connection Diagram decal located on the
inside of the input access door or refer to Figure A.1
on the following page.
INPUT FUSE AND SUPPLY WIRE CONSIDERATIONSRefer to the Technical Specifications at the beginning
of this Installation section for recommended fuse and
wire sizes. Fuse the input circuit with the recommend-
ed super lag fuse or delay type breakers (also called
“inverse time” or “thermal/magnetic” circuit breakers).
Choose an input and grounding wire size according to
local or national electrical codes. Using fuses or circuit
breakers smaller than recommended may result in
“nuisance” shut-offs from welder inrush currents, even
if the machine is not being used at high currents.
INPUT VOLTAGE CHANGE OVER(FOR MULTIPLE INPUT VOLTAGEMACHINES ONLY)Welders are shipped connected for the highest input
voltage listed on the rating plate. To move this con-
nection to a different input voltage, see the diagram
located on the inside of the input access door. If the
main reconnect switch or link position is placed in the
wrong position, the welder will not produce output
power.
If the Auxiliary (A) lead is placed in the wrong position,
there are two possible results. If the lead is placed in a
position higher than the applied line voltage, the
welder may not come on at all. If the Auxiliary (A) lead
is placed in a position lower than the applied line volt-
age, the welder will not come on, and the two circuit
breakers in the reconnect area will open. If this
occurs, turn off the input voltage, properly connect the
(A) lead, reset the breakers, and try again.
NOTE: Turn main input power to the machine OFF before performing connection procedure. Failure to
do so will result in damage to the machine.
(K1761-1) FIGURE A.1 - CONNECTION DIAGRAM ON CONNECTION/INPUT ACCESS DOOR
200-208V
220-230V
440-460V
550-575V
200-208V
220-230V
VOLTAGE = 220-230V
220-230V
200-208V
220-230V
440-460V
550-575V
200-208V
U / L1
550-575V
440-460V
inspecting or servicing machine.
Do not operate with covers
removed.
Do not touch electrically live parts.
Only qualified persons should install,
use or service this equipment.
'A'
'A'
VOLTAGE = 440-460V
'A'
S25198
VOLTAGE = 200-208V
THE LINCOLN ELECTRIC CO. CLEVELAND, OHIO U.S.A.
XA
'A'
VOLTAGE = 550-575V
CR1
W / L3
V / L2
440-460V
550-575V
Disconnect input power before
INPUT SUPPLY CONNECTION DIAGRAM
WARNING
CAN KILL
SHOCK
ELECTRIC
(K1761-2) FIGURE B.1 - CONNECTION DIAGRAM ON CONNECTION/INPUT ACCESS DOOR
200-208V
220-230V
380-415V
440-460V
200-208V
220-230V
VOLTAGE=220-230V
220-230V
200-208V
220-230V
380-415V
440-460V
200-208V
U / L1
440-460V
380-415V
.
inspecting or servicing machine.
Do not operate with covers
.
removed.
Do not touch electrically live parts.
.
Only qualified persons should install,
use or service this equipment.
.
’A’
’A’
VOLTAGE=380-415V
’A’
S23847
VOLTAGE=200-208V
THE LINCOLN ELECTRIC CO. CLEVELAND, OHIO U.S.A.
XA
’A’
VOLTAGE=440-460V
CR1
W / L3
V / L2
380-415V
440-460V
Disconnect input power before
11-14-97
INPUT SUPPLY CONNECTION DIAGRAM
WARNING
ELECTRIC
SHOCK
CAN KILL