Lincoln Electric R3R-500 Input Wire and Fuse Size, Figure A.2 Input Power Supply Connections

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A-7 A-7

INSTALLATION

FIGURE A.2 – INPUT POWER SUPPLY CONNECTIONS

1.INPUT SUPPLY LINE

2.INPUT CONTACTOR CR1

3.RECONNECT PANEL

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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.

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IDEALARC R3R