4" Octagon Box, 2-1/8" Deep - Drawn, W/T-Bar Slots And Fixture Ears3-1/2" O.C. p-54171-TBAR 54171-TBAR

Southwire #: 54171-TBAR Model #: 54171-TBAR

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4" OCT BX DRN 2-1/8D (4) TBAR SLOT NO KO

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4" Octagon Box, 2-1/8" Deep - Drawn, W/T-Bar Slots And Fixture Ears3-1/2" O.C.

Features & Benefits

Multi-depth break-away side tabs allow box to fit snugly on any ceiling T-bar rail
Tab on back of the box allows tie wires to be secure to ceiling structures
Combo-head fixture mounting screws
Brackets: T-Bar Slots
UL, RoHS Compliant

Specifications

Model #	54171-TBAR 54171-TBAR
UPC #	785592982223 785592982223
Product Height	2.73 6.93	inch cm
Product Width	4.0 10.16	inch cm
Product Weight	0.636 0.29	lbs kg
Material	Galvanized Steel Galvanized Steel
Cubic Capacity	20.0 (327.8) 20.0 (327.8)
Standard Package	25 25
Bottom Knockouts	(3) 1/2", (2) 3/4" (3) 1/2", (2) 3/4"
Side Knockouts	(4) 1/2" & 3/4" (4) 1/2" & 3/4"
Color	Silver Silver

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Rated 1 out of 5 by Rich82 from NOT UL LISTED! Discovered that UL does not list a metal box with these removable tabs that put the grid tee through the electrical box. Electrical code inspector made us remove them all. Do not recommend this box. It shouldn't be sold in any place that follows NFPA 70.

Date published: 2026-04-10