Quick Hits

Episode 3: Indications, Accessibility & Heights (404.9 – 404.10)

SLIDE 1 (HOOK / COVER)

⚡ NEC Quick Hit: Switch Operation & Height Limits (Part 3) ⚡

ON/OFF handle positions, center-pivot busway switches, and the 6-foot 7-inch maximum height rule—let's review Sections 404.9 and 404.10! 👇

SLIDE 2 (INDICATING & HANDLE POSITIONS)

Clear ON/OFF Status:

• Visible Indication: Enclosed switches and circuit breakers must clearly indicate whether they are in the open (OFF) or closed (ON) position from the outside.

• Vertical Operation: When operated vertically, the UP position must be the closed (ON) position (with exceptions for double-throw and center-pivot busway switches).

SLIDE 3 (ACCESSIBILITY & MAXIMUM HEIGHTS)

Reaching the Handle:

• Readily Accessible: All switches and circuit breakers used as switches must be located so they can be operated from a readily accessible place.

• Height Limit: The center of the grip of the operating handle in its highest position must not exceed 2.0 m (6 ft 7 in.) above the floor, finished grade, or working platform.

• Exceptions: Busway switches operated from the floor, switches adjacent to equipment they supply, and hookstick-operable isolating switches are exempt.

SLIDE 4 (WRAP-UP) 💡 Apprentice Pro-Tip: 

Always double-check your mounting height dimensions—if a disconnect handle reaches higher than 6 feet 7 inches from the floor without qualifying for an equipment exception, it will fail inspection!

💬 Save this post for your next panel and disconnect rough-in!

🔗 More code breakdowns and study tools at www.JoshTheSparky.com

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