KORA SMB20180 347V 21/2 DEEP GANGABLE METAL STUD BOX (1204-SSX-HV)

347V is a standard Canadian commercial voltage — the phase-to-neutral voltage of a 600V three-phase system. A 347V-rated box like the KORA SMB20180 is required when wiring commercial lighting circuits, exit signs, and other 347V branch circuits, which are extremely common in Canadian commercial and industrial builds. It is not needed for standard 120V residential circuits.

Yes — the SMB20180 is a gangable box, meaning multiple units can be joined side-by-side to accommodate two-gang, three-gang, or wider device configurations. Simply remove the appropriate side knockouts and fasten the boxes together before securing to the metal stud framing. This is ideal for multi-switch or multi-receptacle commercial wall installations.

The 2½″ depth of the SMB20180 provides ample room for most standard wiring connections, including wire nuts and folded conductors on typical 14–12 AWG branch circuits. For larger wire fills or conduit applications, verify fill calculations to CEC requirements. Northern Breaker Group stocks hard-to-find and specialty enclosures like this at our Calgary, Edmonton, and Vancouver counters — contact us or visit a counter location to check current availability.