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Galvanised steel square extension ring, two-gang, drawn construction, combination screw heads, knockout pattern visible

Hubbell Incorporated

Hubbell Incorporated RACO 262 Extension Ring 2 Gangs 43.0 cu in

SKU CH-CYXZ-HTTTK

A 43.0 cu. in. galvanised steel extension ring for two-gang square boxes with combination knockouts and screw heads

  • TypeElectrical Boxes & Covers
  • Adds 43.0 cu. in. capacity for extra wiring space
  • Combination screw heads speed up mounting work
  • TKO knockouts give flexible conduit entry options
  • Drawn steel body resists damage on the job site
  • Square 2-gang extension ring fits standard boxes

Extension Ring for Electrical Boxes

The RACO 262 extension ring adds 43.0 cu. in. of capacity to a 4-11/16 in. square box. It is designed for electricians and installers who need extra wiring space in commercial or residential conduit systems. The drawn steel construction provides durability for surface or flush mounting applications. This accessory suits projects requiring a two-gang configuration with flexible knockout options.

Thermals Noise and Power Draw

As a passive metal enclosure the extension ring produces no noise and draws no power. Galvanized steel dissipates heat from enclosed conductors without active cooling. Combination Phillips/slotted screw heads allow faster installation with standard tools. TKO knockouts in eight 1/2 in. and four 3/4 in. sizes give layout flexibility without extra drilling.

Behaviour Under Sustained Load

The steel body maintains structural integrity when fully populated with conductors at the rated 43.0 cu. in. fill. Knockout edges remain intact after repeated cable pulls and rework cycles. Grounding continuity relies on the mounting screws and box contact rather than a dedicated lug. Installers who need a dedicated grounding terminal or larger volume must select a different box assembly.

Highlights

  • Adds 43.0 cu. in. capacity for extra wiring space
  • Combination screw heads speed up mounting work
  • TKO knockouts give flexible conduit entry options
  • Drawn steel body resists damage on the job site
  • Square 2-gang extension ring fits standard boxes

Specifications

BrandRACO
TypeElectrical Boxes & Covers

Questions about this item

How do I mount the RACO 262 extension ring to an existing square box, and which screw step is often missed?

Fasten the ring with the supplied combination Phillips/slotted screws; the step often missed is tightening both head types fully so the ring seats flush against the box.

What part of the RACO 262 will need replacement after years of service?

The galvanized steel body resists corrosion, but the knockout tabs can fatigue if repeatedly bent; replace the ring if any tab cracks or the grounding path is compromised.

What is the fill limit that stops me adding more conductors to the RACO 262?

The 43.0 cu. in. capacity is the NEC volume limit; once conductor count reaches that volume you must stop pulling wires.

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