Product Specification Sheet APS409

Rev. 11/2018

BBF / BBS Series (Flush / Surface) Back Box/Housings

Model BBS910 Shown
Models and Dimensions

All Depths reflect depth into finished wall surface-not including mounted equipment

BBF731
4.50"W x 8.00"H x 2.50"D 
(115mm x 204mm x 64mm)
BBF863
4.55"W x 9.00"H x 2.50"D 
(116mm x 229mm x 64mm)
BBF903 3.00"W x 9.33"H x 2.375"D 
(77mm x 237mm x 61mm)
BBF910 5.50"W x 3.75"H x 3.50"D 
(140mm x 96mm x 89mm)
BBS863 5.50"W x 10.00"H x 2.50"D 
(140mm x 254mm x 64mm)
BBS903 4.63"W x 10.75"H x 2.50"D 
(118mm x 274mm x 64mm)
BBS910 6.60"W x 4.70"H x 3.65"D 
(168mm x 120mm x 93mm)
BBF / BBS Series (Flush / Surface) Back Box/Housings

The Alpha Communications® BBF (flush) and BBS (surface) series back boxes are designed for a variety of applications.

All models (except the BBS910) are fabricated of 18 gauge (.047" nominal) CRS (Cold Rolled Steel), bonderized with powder-coated baked enamel painted finish. The BBS910 is an aluminum welded box, sealed for water resistance. It is powder coated in a Bright Yellow enamel finish, for optimal visibility.

Where applicable, construction is spot-welded, with 1/2" knockouts for wiring, where applicable. Model BBF863 has five (5) 7/8" knockouts.

All models have station mounting holes that are pre-drilled and tapped for 6 x 32 screws. All dimensions shown are less the mounting tabs (if any).

Model BBF863 Shown Model BBS903 Shown
Model BBF910 Shown Model BBS863 Shown
Architects' And Engineers' Specifications
The system back box(es) shall be Alpha Communications® / Ring BBFXXX (flush) or BBSXXX (surface) series or approved equal (xxx=model# suffix). All models (except the BBS910) shall be fabricated of 18 gauge (.047" nominal) CRS (Cold Rolled Steel), bonderized with powder-coated baked enamel painted finish. The BBS910 shall be an aluminum welded box, sealed for water resistance, and shall be powder coated in a Bright Yellow enamel finish, for optimal visibility.

All models shall have station mounting holes that are pre-drilled and tapped for 6 x 32 screws. Where applicable, the back box(es) shall have 1/2" knockouts for wiring, and stud mounting tabs.

Contractor shall observe all local and national electrical and building codes.

Alpha Communications
42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: (631) 777-5500 • Fax: (631) 777-5599
TOLL-FREE: (800) 666-4800 • Web: www.alphacommunications.com • Email: info@alphacommunications.com
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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.