Lincoln Electric POWER WAVE R450, Operator'S Manual

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Only a qualified electrician should connect
the input leads to the POWER WAVE
®
R450.
Connections should be made in accor-
dance with all local and national electrical
codes and the connection diagrams. Failure to do so
may result in bodily injury or death.
InPut COnnECtIOn
(See Figure A.1)
Use a three-phrase supply line. A 1.40 inch diameter access hole
with strain relief is located on the case back. Route input power
cable through this hole and connect L1, L2, L3 and ground per
connection diagrams and National Electric Code. To access the
input power connection block, remove three screws holding the
access door to the side of the machine.
ALWAYS CONNECT THE POWER WAVE GROUNDING LUG (LOCATED
AS SHOWN IN FIGURE A.1) TO A PROPER SAFETY (EARTH)
GROUND.
InPut FusE and suPPLy WIrE COnsIdEratIOns
Refer to Specification Section for recommended fuse, wire sizes
and type of the copper wires. Fuse the input circuit with the
recommended super lag fuse or delay type breakers (also called
"inverse time" or "thermal/magnetic" circuit breakers). Choose
input and grounding wire size according to local or national
electrical codes. Using input wire sizes, 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 sELECtIOn
The POWER WAVE ® R450 automatically adjusts to work with
different input voltages. No reconnect switch settings are required.
The POWER WAVE
®
R450 ON/OFF switch is
not intended as a service disconnect for this
equipment. Only a qualified electrician
should connect the input leads to the
POWER WAVE
®
R450. Connections should be made in
accordance with all local and national electrical codes
and the connection diagram located on the inside of the
reconnect access door of the machine. Failure to do so
may result in bodily injury or death.
WARNING
WARNING
A-6
INSTALLATION POWER WAVE ® R450