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Gray aluminum weatherproof electrical box, single-gang FSS type, 18.3 cu in capacity

Bell

Bell 5321-0 Weatherproof Electrical Box 18.3 cu in FSS 1-Gang Gray

SKU CH-GRCH-NKKSE

A weatherproof aluminum electrical box with 18.3 cu in capacity for single-gang installations

  • TypeElectrical Boxes & Covers
  • Weatherproof aluminum construction protects wiring outdoors
  • 3 cu in capacity fits multiple conductors
  • Single-gang FSS design suits standard installations
  • Gray finish blends with exterior surfaces
  • CSA and UL listed for code compliance

Weatherproof 18.3 cu in FSS Box

The Bell 5321-0 is a single-gang weatherproof electrical box rated at 18.3 cubic inches capacity. It is built for outdoor or damp-location wiring where a standard indoor box would not meet code. The gray aluminum body carries CSA and UL listings for safety compliance.

Aluminum body with FSS mounting

The box uses an FSS-type design that mounts directly to flat surfaces, simplifying installation on walls or ceilings. Aluminum construction resists corrosion better than steel in exposed environments while providing a rigid enclosure for device mounting. The 1-gang format accepts standard switches, receptacles or blank covers.

No accessories included

The package contains the box only; mounting hardware, cover plates and gaskets must be sourced separately. This lets installers match the exact cover style and fastener type the job requires without paying for unused parts. Buyers needing a complete kit with cover and screws should look for a bundled assembly.

Highlights

  • Weatherproof aluminum construction protects wiring outdoors
  • 3 cu in capacity fits multiple conductors
  • Single-gang FSS design suits standard installations
  • Gray finish blends with exterior surfaces
  • CSA and UL listed for code compliance

Specifications

BrandBELL OUTDOOR
TypeElectrical Boxes & Covers

Questions about this item

What does the 18.3 cu in capacity limit in a 1-gang FSS box?

The 18.3 cu in capacity limits the number and size of conductors, splices and devices that can be safely installed inside the single-gang FSS enclosure.

What mounting provisions does the aluminum FSS box include?

The gray aluminum FSS box provides integral mounting lugs or threaded holes for surface attachment to walls, poles or other flat structures.

How is the weatherproof seal achieved during installation?

Install the supplied gasket between the box and cover, then torque the cover screws evenly to compress the gasket without over-tightening and cracking the aluminum.

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