Hubbell 53171K Extension ring for 4 In. Square Box, 2-1/8 in. Deep, 30 Cu. In., with Concentric, 1/2 & 3/4 in., and 1/2 in. KO (40-Pack)
Hubbell 53171K Extension ring for 4 In. Square Box, 2-1/8 in. Deep, 30 Cu. In., with Concentric, 1/2 & 3/4 in., and 1/2 in. KO (40-Pack)
- MPN: 53171K
- UPC: 626463003367
- PPN: HBL-53171K
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Description
Extension ring for 4 In. Square Box, 2-1/8 in. Deep, 30 Cu. In., with Concentric, 1/2 & 3/4 in., and 1/2 in. KO (40-Pack)
Features
- The Hubbell 53171K is a precision-engineered 4-inch square extension ring designed to mount directly onto standard 4" x 4" electrical boxes. Whether you are working with metallic conduit or surface-mount applications, this extension provides a seamless fit, allowing you to increase the depth of your existing setup without removing the original box from the wall or ceiling.
- Providing a substantial 2-1/8 inch depth, this extension ring adds 30.0 cubic inches of internal volume to your wiring system. This extra space is essential for meeting Canadian Electrical Code (CEC) wire-fill requirements when adding new circuits, splicing multiple conductors, or installing bulky devices like GFCIs or smart switches that standard boxes simply cannot accommodate.
- The 53171K is equipped with 10 total knockouts, featuring a versatile mix of 1/2-inch and 3/4-inch concentric (K) openings. With 4 knockouts on the sides and 6 on the ends, you have maximum flexibility for conduit entry from any direction, making it an ideal choice for complex commercial and industrial "split-run" wiring configurations.
- Constructed from heavy-duty galvanized steel, this extension ring is built to withstand physical abuse and resist corrosion over the long term. Its drawn (one-piece) construction provides superior structural integrity compared to welded alternatives, ensuring a smooth interior that won't snag wires and a robust frame that maintains its shape under the weight of heavy conduit.
- Designed for the professional contractor, the 53171K is a non-gangable, bracketless ring that mounts using two standard screws through the original box’s keyhole slots. This simple "drop-in" design allows for rapid field installation, saving significant labor time during renovations or system expansions where adding depth is the primary goal.
Specifications
- Size
- 4 in
- Volume
- 30 cu in
- Material
- Steel
- Weight
- 0.54 lb
- Wiring System
- Conduit
Depth2-1/8 in
Knockouts1/2 in, ½-3/4 in, concentric
Number of Gangs2-Gang
CertificationCSA Certified Listed
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