The RM3U18BRKT is an adjustable-depth rear bracket kit for 3U RM Series rack-mount aluminum enclosures, supplied as a pair of rear rack ears for 4-post mounting. It gives integrators and OEM builders rear support points when installing a deeper 3U instrument case in a 4-post rack.
The series ordering table lists the RM3U18BRKT for the 3U full-width chassis in 18", 22" and 28" depths: RM3U1918SBK, RM3U1918VBK, RM3U1922SBK, RM3U1922VBK, RM3U1928SBK, RM3U1928VBK. It is compatible with the full 16.60" width versions only, and the maximum depth it adds to the chassis is 16.00 in (406 mm).
The kit is made of steel with a black finish. The drawing, shown on a RM3U1918*BK case, calls out a rear support bracket and a rear extension bracket with an overall length of 508.00 mm [20.000 in], a front height of 132.54 mm, 18x Ø4.78 mm [0.188 in] holes and 6-32 PEM nuts (4x).
Included fasteners per the drawing: 8x #6 external tooth washers, 8x #6 flat washers, 8x #8 hex nuts, 8x #8 internal tooth washers, 8x 6-32 x 1/2" screws and 8x 8-32 x 1/2" screws. The 10-32 clip nuts and 10-32 x 1/2" screws shown on the drawing are not supplied. The kit ships in a box at 2 lbs (0.91 kg) and is RoHS and REACH compliant.
| Type | Rear bracket |
| Series | RM Series Rack Mount Aluminum Instrument Enclosure |
| Sold As | Pair |
| Description | REAR BRKT KIT FOR 3U 18" DEEP |
| Part Number | RM3U18BRKT |
| Long Description | rack hardware - rear bracket kit for RM series racks |
| Description (Series Table) | Adjustable-Depth Rear (Pair) of Rack Ears for 4-Post Mounting |
| Size (L X W X H) | 5.25 in x 16.6 in x 18 in (133 mm x 422 mm x 457 mm) |
| Bracket Length (Drawing) | 508.00 mm [20.000 in] |
| Mounting Holes (Drawing) | Ø4.78 mm [0.188 in] (18x) |
| Chassis Width (Series Table) | 16.60 in (422 mm) |
| Chassis Height (Series Table) | 5.25 in (133 mm) |
| Bracket Front Height (Drawing) | 132.54 mm |
| UPC | 623980018188 |
| UNSPSC | 43201602 |
| Compatibility | Full 16.60" width versions only |
| Mounting Style | 4-post rack |
| For Chassis Height | 3U |
| Listed For Enclosures | RM3U1918SBK, RM3U1918VBK, RM3U1922SBK, RM3U1922VBK, RM3U1928SBK, RM3U1928VBK |
| Max Depth Added To Chassis | 16.00 in (406 mm) |
| Kit Contents | (1) Rear support bracket |
| Not Supplied | 8x 10-32 clip nut; 8x 10-32 x 1/2" screw |
| Packaging Type | Box |
| Shipping Weight | 2 lbs (0.91 kg) |
| Kit Contents (Cont.) | 6-32 PEM nut (4x) |
| Color | Black |
| Material | Steel |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The series table lists it for RM3U1918SBK, RM3U1918VBK, RM3U1922SBK, RM3U1922VBK, RM3U1928SBK, RM3U1928VBK. It is compatible with full 16.60" width versions only.
The maximum depth added to the chassis is 16.00 in (406 mm).
It is sold as a pair of adjustable-depth rear rack ears for 4-post mounting.
No. The drawing marks the 8x 10-32 clip nuts and 8x 10-32 x 1/2" screws as not supplied; the kit includes the washers, #8 hex nuts, 6-32 x 1/2" and 8-32 x 1/2" screws.
Steel, in black. Shipping weight is 2 lbs (0.91 kg).
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