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The KOR SMB20160 Octagon Box with Clamp measures 4” x 4” x 1 1/2” and provides 15 cubic inches of reliable capacity. Designed for superior installation ease, this sturdy box features a built-in clamp for secure mounting. Ideal for electrical applications, it ensures safety and convenience for your wiring projects.
Under CSA/CEC box-fill rules, each conductor, device, and fitting counts toward the total cubic-inch requirement. As a general guide, a 14 AWG conductor counts as 2 cu. in. and a 12 AWG conductor counts as 2.25 cu. in. With 15 cu. in., the SMB20160 is typically suited for lighter wiring runs — count all your conductors, clamps, and devices before confirming fit. Our team is happy to help if you're unsure.
The integrated clamp on the KOR SMB20160 is designed primarily for NM (romex-style) cable. For armoured cable (AC/BX) or flexible conduit, a dedicated connector fitting is generally recommended to ensure a secure, code-compliant connection. Contact us and we can advise on compatible fittings for your specific cable type.
Standard octagon boxes like the SMB20160 are rated for lighting fixture support but are not independently rated for ceiling fan installations, which require a fan-rated brace or box specifically listed for that purpose. If you need a fan-rated octagon box or brace, reach out to our team and we'll help you find the right solution.
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