Technical

Enclosure guides

Guides and notes on industrial electrical and automation parts: selection, wiring, settings and ordering.

20 Jul 2026

IP20, IP55 and IP66 enclosure ratings for VFDs, NEMA/UL equivalents, and how to size cabinet cooling so the drive doesn't overheat or corrode.

8 min read

20 Jul 2026

SCR conduction loss, the bypass contactor's role, AC-53a/AC-53b duty sizing, and enclosure cooling options for soft starters.

9 min read

Parts list

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