The HLP4U31BK is a 4U low-profile wall-mount cabinet from the HLP Series, built for mounting 19-inch EIA-310 compliant equipment in network closets, telecom rooms and structured cabling installations where a defined load rating matters. It is a UL Listed 2416 wall-mount rack (UL File # E474597) load rated to 200 lb (90 kg) for installed equipment, making it suited to IT, AV and telecom integrators working in government, education and commercial environments.
Construction is mild steel with a RAL9005 black powder coat finish described on the drawing as painted sand texture black; the finish is GREENGUARD Gold and TSCA compliant for indoor IT spaces, and the mounting rails are painted white. Overall dimensions are 31.00 in H x 27.50 in W x 11.15 in D (787 x 699 x 283 mm), with a nominal listed size of 31 in x 30 in x 11 in (787 x 762 x 279 mm) and a shipping weight of 64 lb (29.03 kg).
Rack capacity is configured as 2U pivot plus 4U fixed, with tapped 10-32 rails on an 18.35 in (466 mm) 19-inch mounting pattern. Maximum vertical usable depth is 21.90 in (556 mm) with both rails installed, or 26.90 in (683 mm) with the fixed rail only. The internal adjustable rails offer 180 degrees of flexibility, and the secondary rail can be set in five positions: vertical up or down, 30 degrees up or down, and 90 degrees facing the user.
HLP4U31BK ships as a rear body with door cover, a 2U rotating rail (HLP2UR), 4U main mounting rails (HLP4UFR), up to two installed locking latches (DLRKHLP), 25 10-32 mounting screws and installation instructions. Top and bottom double knock-outs and a 4 in fan mount grill pattern support cable entry and cooling accessories; wall mounting hardware is not included.
| Series | HLP Series - Low-Profile Wall-Mount Rack (200 lb) |
| Rack Type | Enclosed Wall Rack |
| Load Rating | 200 lb (90 kg) for installed equipment (UL 2416 evaluated using cabinet weight plus load with a 2x safety multiplier) |
| Part Number | HLP4U31BK |
| Long Description | 4U 31" H Low Profile Wall Mount Cabinet |
| Short Description | 4U 31D SLIM WALL CABINET |
| Overall Depth | 11.15 in (283 mm) |
| Overall Width | 27.50 in (699 mm) |
| Overall Height | 31.00 in (787 mm) |
| Front Opening Width | 25.88 in (657 mm) |
| Top View Overall Width | 29.12 in (740 mm) O/A |
| Nominal Size (H X W X D) | 31 in x 30 in x 11 in (787 mm x 762 mm x 279 mm) |
| Front Opening Height (Door Removed) | 29.38 in (746 mm) |
| UPC | 623980660394 |
| ECCN | EAR99 |
| UNSPSC | 43223306 |
| GTIN-14 | 00623980660394 |
| Tariff Code | 9403.10.0040 |
| Country Of Origin | CA (manufactured in North America) |
| UPC W/O Check Digit | 62398066039 |
| Rail Type | Tapped 10-32 |
| Mounting Pattern | 18.35 in (466 mm) 19 in MTG, EIA-310 compliant |
| Rail Adjustability | Internal adjustable mounting rails with 180 degrees of flexibility; rotating 2U bracket with 180 degrees of motion |
| Rail Spacing Reference | 1.75 in (44 mm) per U; 3.00 in (76 mm) 2U and 6.50 in (165 mm) 4U rail dimensions |
| Secondary Rail Positions | Five fixed positions: vertical up or down, 30 degrees up or down, 90 degrees facing the user |
| Rack Units (Pivot + Fixed) | 2U + 4U |
| 4U Rail Reference Positions | 6 positions of 4U rails (front mount, 30 degrees up, 30 degrees down, 90 degrees up max with and without 2U bracket, 90 degrees up min) |
| Rack Units (Listed Attribute) | 6 |
| Maximum Vertical Usable Depth (Fixed Rail Only) | 26.90 in (683 mm) |
| Maximum Vertical Usable Depth (Both Rails Installed) | 21.90 in (556 mm) |
| 2U Rails | 1 - replacement part no. HLP2UR (rotating 2U bracket assembly) |
| Rear Body | 1 (HLP - Rear Section 31H x 6U DP) |
| Door Cover | 1 (HLP - Door Assembly 31H) |
| Not Included | Wall mounting hardware |
| Documentation | 1 installation instruction sheet |
| Mounting Screws | 25 x 10-32 screws - replacement part no. SCREW1032-25 |
| Main Mounting Rails | 1 - replacement part no. HLP4UFR (fixed rail LH and RH 90/30, 4U) |
| Installed Locking Latch | Up to 2 - replacement part no. DLRKHLP |
| Shipping Weight | 64 lbs (29.03 kg) |
| Material | Mild Steel (engineered steel construction) |
| Knock-Outs | 2x double knock-out 1.12 in / 1.38 in dia. top and bottom; 3x double knock-out 2.00 in / 3.00 in dia. top and bottom |
| Paint Color | RAL9005 Black |
| Fan Provision | 4 in fan mount grill pattern |
| Finish Description | Painted sand texture black powder coat (GREENGUARD Gold, TSCA compliant) |
| Frame Architecture | Open frame architecture with defined mounting structure; removable/reversible door (mounting holes to reverse door) |
| Mounting Rail Finish | Mounting rails painted white |
| Standards | cULus, PCI, TAA-compliant |
| UL File # | E474597 |
| UL Listing | UL Listed 2416 wall-mount rack |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| USMCA Compliant | Yes |
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It is a UL Listed 2416 wall-mount rack load rated to 200 lb (90 kg) for installed equipment. UL2416 racks are evaluated using cabinet weight plus the desired load with a 2x safety multiplier, for example 100 lb cabinet + 200 lb load x 2 = 600 lb static test load.
The HLP4U31BK is configured as 2U pivot plus 4U fixed rack units, and the part attributes list Rack Units as 6. Rails are tapped 10-32 on a 19 in (18.35 in / 466 mm) EIA-310 mounting pattern.
Maximum vertical usable depth is 21.90 in (556 mm) with both rails installed, or 26.90 in (683 mm) with the fixed rail only. Overall cabinet depth is 11.15 in (283 mm).
It includes the rear body, door cover, one 2U rail set (HLP2UR), 4U main mounting rails (HLP4UFR), up to two installed locking latches (DLRKHLP), 25 10-32 mounting screws and installation instructions. Wall mounting hardware is not included.
Yes. The internal adjustable mounting rails offer 180 degrees of flexibility, and the secondary rail can be set in five configurations: vertical up or down, 30 degrees up or down, and 90 degrees facing the user.
Yes. The same cabinet in RAL7035 Light Gray is part number HLP4U31LG; HLP4U31BK is the RAL9005 Black version.
The drawing shows a 4 in fan mount grill pattern plus double knock-outs of 1.12/1.38 in and 2.00/3.00 in diameter in the top and bottom for cable entry.
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