: Technicians must verify polarity with a multimeter and ensure DC bus capacitors are discharged before installation to avoid electric shock [1, 7].

IP20 (protected against solid objects >12mm, but must be housed in an enclosure to protect against dust and moisture).

: Terminal bolts should be torqued to 12 Nm to ensure stable connections under vibration [1].

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Dc Manual [top] — Rec12-690

: Technicians must verify polarity with a multimeter and ensure DC bus capacitors are discharged before installation to avoid electric shock [1, 7].

IP20 (protected against solid objects >12mm, but must be housed in an enclosure to protect against dust and moisture).

: Terminal bolts should be torqued to 12 Nm to ensure stable connections under vibration [1].