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Have a qualified electrician connect the input power
leads to the L1, L2, and L3 terminals of the input con-
tactor. Follow all national and local electrical codes.
Use a three-phase line. Refer to the connection dia-
gram located on the inside of the access panel cover
for proper input voltage connection. Also see Figure
A.3.
INPUT WIRE AND FUSE SIZE
Fuse the input circuit with super lag fuses or delay
type circuit breakers as recommended on the
Technical Specifications page. Choose an input and
grounding wire size according to local or national
codes; also see the appropriate Technical
Specifications page. Using fuses or circuit breakers
smaller than recommended may result in “nuisance”
shut-offs from welder inrush currents, even if you are
not welding at high currents.
INSTALLATION
A-7 A-7
IDEALARC R3R
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FIGURE A.2 – INPUT POWER SUPPLY CONNECTIONS
1. INPUT SUPPLY LINE
2. INPUT CONTACTOR CR1
3. RECONNECT PANEL