The Alpha Communications BBF863 flush backbox is built from 18 gauge cold rolled steel with a bonderized, powder-coated enamel finish for durability. It features a welded construction and includes five 7/8 inch knockouts for easy wiring access.
Pre-drilled and tapped mounting holes accommodate 6 x 32 screws to secure stations firmly. The internal dimensions measure 4.55 inches wide by 9.00 inches high by 2.50 inches deep (116mm by 229mm by 64mm).
Review Alpha BBF863 Flush Backbox-AA903C/AA917 Series as part of the full system layout, not as an isolated part number.
Verify compatibility with the rest of the system, especially when replacing existing equipment.
As part of Intercoms, it can support project planning, maintenance, replacement, or system buildout work.
For replacement work, compare the existing part number, electrical requirements, mounting conditions, and installation environment. A careful match can save time during installation and reduce the risk of ordering Alpha BBF863 Flush Backbox-AA903C/AA917 Series for the wrong job.
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