We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Galvanized steel octagon electrical box two gang 15.5 cu in

Hubbell Incorporated

Hubbell Incorporated RACO 326 Electrical Box 15.5 cu in Octagon 2 Gang Galvanized

SKU CH-Q38Q-1RA57

A galvanised steel octagon box with two gangs, 15.5 cu in capacity and UL listing

  • TypeElectrical Boxes & Covers
  • UL Listed safety compliance for reliable installations
  • 5 cu in capacity accommodates multiple wiring configurations
  • Two-gang octagon design supports dual device mounting
  • Galvanized steel construction resists corrosion in damp locations
  • KO and NMSC clamps simplify cable entry without extra hardware

Electrical box with 15.5 cu in capacity

This galvanized steel octagon box provides 15.5 cubic inches of wiring space for residential or light commercial electrical installations. The two-gang design accommodates multiple devices or switches in a single enclosure. UL listing confirms compliance with safety standards for indoor use.

Upgrade from single-gang octagon boxes

Replacing a single-gang octagon box with this two-gang model doubles device capacity without enlarging the ceiling or wall opening. The jump is worth it when adding a second switch, receptacle or combination device in the same location. Existing 1/2 inch side knockouts simplify cable entry during retrofit work.

Capacity and headroom for typical lighting circuits

The 15.5 cu in volume comfortably handles conductors for standard lighting circuits and multiple device combinations within fill limits. It runs out when conductor count or device size exceeds NEC box-fill calculations for the installed wire gauge. Deep 1 1/2 inch nominal depth helps accommodate deeper devices or wiring folds.

Highlights

  • UL Listed safety compliance for reliable installations
  • 5 cu in capacity accommodates multiple wiring configurations
  • Two-gang octagon design supports dual device mounting
  • Galvanized steel construction resists corrosion in damp locations
  • KO and NMSC clamps simplify cable entry without extra hardware

Specifications

BrandRACO
TypeElectrical Boxes & Covers

Questions about this item

Will the 4 in by 4 in octagon box fit between standard studs?

The 4 in nominal length and width match typical stud cavities, but verify local spacing before mounting.

Which knockout do I remove for the first cable run?

Use the two 1/2 in side knockouts with the built-in KO and NMSC clamps; the back has none.

When should I replace the galvanized steel box?

Replace if the gray coating shows white rust, the clamps no longer grip cable, or the box is bent.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.