The Alpha Communications® model OH600 and model OH601 are flush back boxes, used with the AM612, AM629, AM642 and AM649 series lobby entry panels only. They are made of steel - in a painted grey finish. Although these panels can be flush mounted without a backbox, we highly recommend that a backbox be used for a more secure mounting.

The OH600 is used with panels up to 8 buttons (and without any postal lock release installed), and the OH601 is used for panels with 9 to 16 buttons or smaller panels with the postal lock release installed.

SPECIFICATIONS
Dimensions:

Model OH600
Height: 10.25" (261mm)
Width: 4.25" (108mm)
Depth: 2.00" (51mm) into finished wall surface.

Model OH601
Height: 16.25" (413mm)
Width: 4.25" (108mm)