

Documentation & Downloads

Hubbell 55171K Extension ring for 4 In. Octagon Box, 2-1/8 in. Deep, 21 Cu. In., with Concentric, 1/2 & 3/4 in. KO (50-Pack)
- MPN: 55171K
- UPC: 626463002254
- PPN: HBL-55171K
- UNSPSC: 39121308
CAD
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Description
Features
- Absolutely. The Hubbell TradeSelect 55171K delivers an additional 21 cubic inches of interior volume, allowing you to easily accommodate extra conductor splices, large fixture leads, or deeper electrical devices. By adding a substantial 2-1/8 inches of extra depth to your existing system, it completely eliminates the intense labor and downtime associated with tearing out and replacing an overfilled box during a retrofit or renovation.
- Designed as a direct fit for standard 4-inch octagon boxes, this single-gang extension ring mounts seamlessly onto your existing rough-in infrastructure. Its precise drawn-steel construction features self-tapping combination screw heads that virtually eliminate the risk of cross-threading or stripping during overhead ceiling and wall lighting fixture installations.
- This steel extension ring provides maximum versatility on the job site by featuring two standard 1/2-inch knockouts on the side along with two 1/2-inch and 3/4-inch concentric combination knockouts on the ends. These dual-sized concentric KOs permit clean, direct conduit entries for multiple run configurations, ensuring you do not have to swap out components if your field routing plans change at the last minute.
- Rest assured that your projects will remain fully up to code, as the Hubbell Canada 55171K is officially CSA Certified to meet rigorous industry standards for safety and performance. Built from rugged, durable steel with high structural integrity, this ring guarantees reliable grounding continuity and resilient physical protection inside commercial, institutional, and residential dry indoor environments.
Documentation & Downloads
Specifications
Additional
- Size
- 4 in.
- Volume
- 21 cu. in.
- Material
- Steel
- Number of Gangs
- 1-Gang
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CAD
$6.77
/ EA
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Looking to buy a large quantity?
To view product inventory
CAD$6.77/ EA
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