KORA SMB20240 CEILING PAN EXTENSION RING 4”X 1/2” ( OBEX ) 20166

The KORA SMB20240 Ceiling Pan Extension Ring is designed to enhance installation flexibility with its 4″ x 1/2″ dimensions, making it compatible with various ceiling applications. Crafted for durability and reliability, this extension ring ensures secure mounting of lighting fixtures, providing a clean and professional finish. Ideal for both new installations and upgrades.

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SKU KORSMB20240 Category
Conductor Range & Use

The KORA SMB20240 is a 4" × 1/2" ceiling pan extension ring (octagon box extension / OBEX), designed to add depth to an existing 4" octagonal ceiling box — ideal for accommodating deeper wiring connections, larger wire bundles, or flush-mounting lighting fixtures where extra clearance is needed.

  • Dimensions: 4" diameter × 1/2" depth extension
  • Compatible with standard 4" octagonal (OBEX) ceiling boxes for both new construction and retrofit/upgrade installations
  • Provides a clean, professional finish for ceiling-mounted lighting fixtures, junction boxes, and similar applications

Not sure if this extension ring matches your existing box or fixture? Send us your box model and we'll confirm compatibility.

The SMB20240 is designed for standard 4-inch octagonal (OBEX) ceiling boxes. The 1/2" depth extension adds clearance between the existing box and the ceiling pan or fixture canopy. If you're unsure whether your existing box is compatible, send us the box details and we'll confirm the fit.

A ceiling pan extension ring is used when the existing octagonal box sits flush with or recessed behind the ceiling surface, or when there isn't enough depth to safely contain all the wiring connections. The SMB20240's 1/2" extension brings the box edge to the correct depth for a clean, code-compliant fixture installation — common in both new builds and renovation/upgrade projects.

Northern Breaker Group specializes in electrical supply including hard-to-find and obsolete items like the KORA SMB20240. Stock levels vary across our Calgary, Edmonton, and Vancouver counters. Contact us or request a quote and we'll confirm availability and lead time at the branch nearest to you.

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