Selection Guide
Box trade size
Maximum volume Maximum number of conductors*
(mm) (in.) CM
IN.
) Round/Octagonal
) Round/Octagonal
) Round/Octagonal
) Square
) Square
) Square
) Square
) Square
) Square
) Device
Device
) Device
) Device
) Device
) Device
) Device
) Device
) Device
) Masonry Box/Gang
) Masonry Box/Gang
)
)
)
)
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8 STEEL CITY® METALLIC BOXES & COVERS
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Overview
NEC® Reference
Article 314 – Boxes and fittings (continued)
Canadian Standards Association File Number: LR 12798
Products designed to meet Federal Specification Number: W-J-800
Verification of file numbers and compliance with federal specifications for individual items available upon request.
AISI C-1055, heat treated to R. 35 zinc plated .0005 thick.