Precaution For Installation And Wiring - Hitachi J300 Series Instruction Manual

When executing the wiring work or another work, attach a cover on the vent hole (slit) on the top of the
inverter to prevent wire chips, weld spatters, iron scraps, or dust from falling into the inverter.
Vent hole
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Precaution for installation and wiring

4-3
15 cm or more
Cover (a nonflammable
plate such as an iron plate)