DMP 635-R Keypad Surface Mount Conduit Backbox

Overview

The DMP 635-R is a 1.75-inch deep metal backbox engineered for surface-mount keypad installations where conduit runs or masonry mounting is required. This accessory solves the installation problem of flush-mounting keypads on non-standard walls without interior cavity space — it provides rigid support, cable egress routing, and integration into fire-alarm and remote-annunciator circuit designs. The 635-R accommodates standard DMP keypad readers and includes five 3/4-inch by 3/4-inch knockouts for conduit or cable entries plus four mounting holes for secure wall attachment.

Compatibility

The 635-R is designed for use with DMP 630F keypads in fire and remote-annunciator applications. Verify compatibility with your specific keypad model and control-panel configuration before ordering; surface-mount backboxes are application-specific and not interchangeable across different keypad families.

Installation Notes

Surface mounting applies to masonry, concrete block, or stud walls without cavity depth for a recessed box. The five 3/4-inch knockouts accommodate standard electrical conduit sizes — common in installations requiring separate signal and power conduit runs or where fire-rated routing is mandated by code. Four pre-drilled mounting holes accept standard fasteners appropriate to your wall material. Dimensions are 10.25 inches wide by 6.88 inches high by 1.74 inches deep; verify clearance for conduit bends and cable slack before mounting.