4" Octagon Electrical Box – Technical Specifications

General Details:

• Type: Drawn construction

• Material: Pre-galvanized sheet steel

• Shape: Octagon

• Depth: 1-1/2"

• Diameter: 4"

• Capacity: 15.5 cubic inches

• Mounting: Includes plaster ears

• Package Quantity: 25 per carton

Approvals & Standards:

• UL Listed: UL 514A

• CSA Certified: CSA C22.2

• Compliance: ANSI / NEMA OS1

Knockouts:

• Total Knockouts: 7

  • Bottom: (1) ½" knockout

  • Sides: (2) ½" knockouts

  • Primary Out (Priout): (4) knockouts (for cable clamps)

• Knockout Size: ½"

Clamp Type:

• Non-metallic sheathed cable clamps (BX clamps included)

Dimensions:

• Overall: 5" (W) × 4" (H) × 1.56" (D)

Additional Features:

• Front Wetwall Bracket: ½" setback

• Pre-galvanized finish: Corrosion-resistant