Hammond CLSR10U 10U Square-Hole EIA Rack Mounting Rails, Pair

CLSR10U is a pair of 19-inch panel rails with square mounting holes, supplied as an optional mounting rail set for the Hammond CLC Series multi-bay colocation server rack cabinet. It provides 10U of rack space with a mounting height of 17.50 in (445 mm), matching the 10U-per-bay layout of the 4-bay CLC cabinet configurations. It is intended for colocation providers, service providers, telecom operators and enterprise IT teams that need to add or re-configure equipment mounting space inside a shared cabinet.

The rails are formed from mild steel and finished in painted thin film black. Holes are 0.38 in square on typical EIA spacing, so standard 19-inch rack-mount equipment and cage-nut hardware can be used, and white silkscreened U markings on the rail face make it straightforward to count rack positions during layout and installation. Per the drawing, the rail measures 17.53 in (445 mm) over the 10U mounting area, with 2.00 in (51 mm) and 1.02 in (26 mm) flange dimensions and 0.31 x 0.50 in slotted mounting holes.

CLSR10U ships as a pair with a shipping weight of 3 lbs (1.36 kg). Within the CLC Series, each bay uses two pairs of adjustable-depth EIA square-hole mounting rails, so this pair can be used to build out or extend a 10U compartment. A 10-32 tapped equivalent, CLTR10U, is listed in the same series table for installations that require threaded rails instead of square holes.

The part is RoHS and REACH compliant, USMCA compliant, made in Canada, and falls under UL file E474597. Listed standards include cULus, PCI and TAA-compliant, supporting government procurement and secure multi-tenant colocation deployments. Mounting hardware is not included with CLC Series rails.