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Gray aluminum FD-3 deep electrical box 4.62 inches long with 1 inch hub

Hubbell Incorporated

Hubbell Incorporated KILLARK FD-3 Deep Electrical Box 1" Hub 4.62" Gray

SKU CH-0D9Y-30XCV

A deep, single-gang aluminum device box with a 1 in hub, 47 cu in capacity and internal grounding screw

  • Product typeElectrical Boxes & Enclosures
  • Deep 4.62 in box fits more wiring
  • 47 cu in capacity meets code for large devices
  • 1 in hub accepts standard conduit
  • Internal grounding screw speeds safe installs
  • Tapered threads seal against moisture ingress

1-Inch Hub Deep Device Box

This single-gang aluminum box provides a 1-inch threaded hub for conduit entry. The FD-type enclosure suits industrial and commercial wiring where a deeper cavity is required. Gray finish resists corrosion in damp or outdoor locations. Internal grounding screw simplifies equipment bonding.

47 Cubic Inch Capacity Frees Conductor Space

Deep 2-inch body yields 47 cubic inches of wiring volume, easing pull-through and splice room for larger conductors. Tapered threads on the hub ensure a tight seal when paired with matching conduit fittings. Mounting holes on 1-inch centres align with standard straps and brackets. Aluminum construction dissipates heat without adding excessive weight.

Handles Heavy Conduit Runs, Not Multi-Gang Layouts

The single inlet and single-gang format limit use to straight or terminating runs rather than branching circuits. Builders needing multiple device openings or larger hub diameters must select a different enclosure. Capacity tops out at 47 cubic inches, so very large conductor counts or numerous splices may exceed fill allowances.

How it compares

Measured against everything we stock in Electrical Enclosures & Cabinets, at today’s prices. Recalculated every night.

Price $47.99
Pricier than about 55% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameKILLARK
Product typeElectrical Boxes & Enclosures

Questions about this item

How much wiring volume does the 47 cu in capacity provide for a deep box installation?

The 47 cubic inch capacity accommodates multiple conductors and devices in the 4.62 inch deep aluminum box with 1 inch hub.

Does the aluminum construction with tapered threads manage heat during continuous electrical load?

Aluminum material dissipates heat effectively while tapered threads maintain secure conduit connections under sustained operation.

What mounting hardware matches the 1 inch on-center holes for secure installation?

Standard 1 inch on-center mounting holes accept common screws or bolts for surface mounting the gray FD-type box.

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