The C4F247731BK1 is a 44U open cabinet frame from the C4 modular server rack cabinet system, intended for data center, enterprise IT and network infrastructure teams who build a cabinet to their own specification. It ships as a frame only with no mounting rails, so doors, side panels, top and bottom panels, rails and accessories are selected separately from the C4 platform.
Construction is a welded steel assembly using 14-gauge steel for the cabinet frame with 12-gauge reinforced corner brackets (16-gauge doors and panels within the platform), finished in RAL9005 Black textured powder coat. The frame is made from mild steel and includes cable entry plugs. Grounding and bonding provisions are provided throughout the frame, doors and panels.
Overall size is 83.5 in x 24 in x 31.5 in (2,121 mm x 610 mm x 800 mm), with the series table listing overall dimensions of 83.58 in high x 24.00 in wide x 31.50 in deep including leveling feet. Usable mounting height is 77.00 in (1,956 mm) for 44 rack units and usable mounting depth is 29.50 in (749 mm). The top panel opening carries four 3.50 in (89 mm) diameter cable entry holes, and shipping weight is 122 lbs (55.34 kg).
Four leveling feet with 5/16-18 threads are provided, a caster pattern and lagging points are included for mobile or bolted-down installations, and 1/4-20 collar studs are provided on the top and bottom. Mounting depth is infinitely adjustable using C-channel struts. EIA-310 compliant 19 in rail pairs are ordered separately: C4PR2477SZPL square hole or C4PR2477TZPL tapped 10-32.
When assembled by Hammond as a complete cabinet, the platform is UL2416 listed at a 3000 lb load rating (UL file E474597) and seismic rated to 1200 lb dynamic load; individual components are not rated independently. C4F247731BK1 is TAA-compliant and manufactured in North America.
| Series | C4 Series Modular Server Rack Cabinet System (3000 lb) |
| Rack Type | Cabinet |
| Rail Type | Frame Only - No Rails |
| Rack Units | 44 |
| Short Description | 44U 24W 31.5D C4 FRAME ONLY |
| Overall Depth | 31.50 in (800 mm) |
| Overall Width | 24.00 in (610 mm) |
| Top Panel Opening | 19.92 in (506 mm) |
| Bottom Panel Opening | 25.50 in (648 mm) |
| Usable Mounting Depth | 29.50 in (749 mm) |
| Frame Height (Drawing) | 82.81 in (2103 mm) |
| Inside Depth (Drawing) | 29.72 in (755 mm) I/S |
| Usable Mounting Height | 77.00 in (1956 mm) / 77.06 in (1957 mm) — 44U |
| Nominal Size (H X W X D) | 83.5 in x 24 in x 31.5 in (2,121 mm x 610 mm x 800 mm) |
| Overall Height (Includes Leveling Feet) | 83.58 in (2123 mm) |
| UPC | 623980040424 |
| ECCN | EAR99 |
| UNSPSC | 43223306 |
| GTIN-14 | 00623980040424 |
| Part Number | C4F247731BK1 |
| Tariff Code | 9403.10.0040 |
| Country Of Origin | CA |
| UPC W/O Check Digit | 62398004042 |
| Collar Studs | 4 on top and 2 on bottom, 1/4-20 |
| Leveling Feet | 4X leveling foot, 5/16-18 thread |
| Rail Standard | EIA-310 compliant mounting rails (12-gauge steel), square hole rails support sliding rail kits |
| 23 In Rail Pairs | Not available for this frame |
| Eye-Bolt Provision | 1/2-13 nut (four threads for optional eye-bolts) |
| Mounting Depth Adjustment | Infinitely adjustable using C-channel struts |
| 19 In Square Hole Rail Pair | C4PR2477SZPL (sold separately) |
| 19 In Tapped 10-32 Rail Pair | C4PR2477TZPL (sold separately) |
| Shipping Weight | 122 lbs (55.34 kg) |
| Assembly | Welded assembly |
| Included | Cable entry plugs included |
| Material | Mild Steel |
| Finish Note | Painted black textured powder coat (GREENGUARD, TSCA, RoHS compliant) |
| Frame Gauge | 14-gauge steel frame with 12-gauge reinforced corner brackets; 16-gauge doors and panels |
| Paint Color | RAL9005 Black |
| Standards | cULus, zone4, TAA-compliant |
| UL File # | E474597 |
| Load Rating | UL2416 listed rack, 3000 lb load rating when assembled by Hammond as a complete cabinet |
| RoHS Compliant | Yes |
| Seismic Rating | 1200 lb dynamic load (IBC, CBC, NBC, ASCE standards) when assembled by Hammond |
| REACH Compliant | Yes |
| USMCA Compliant | Yes |
| Component Rating Note | Individual components are not UL2416 or seismic rated independently and must be assembled as a complete cabinet to meet certification requirements |
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No. The rail type is listed as Frame Only - No Rails, and the series notes that mounting rails are not included with the frame. For this 44U frame, order 19 in rail pairs separately: C4PR2477SZPL (square hole) or C4PR2477TZPL (tapped 10-32). 23 in rails are not listed for this frame.
Usable mounting height is 77.00 in (1,956 mm), equal to 44 rack units, with a usable mounting depth of 29.50 in (749 mm). The drawing also shows an inside depth of 29.72 in (755 mm).
No. The UL2416 3000 lb load rating and the 1200 lb dynamic seismic rating apply when the cabinet is assembled by Hammond as a complete cabinet. Individual components are not UL2416 or seismic rated independently.
The top opening includes four 3.50 in (89 mm) diameter cable entry holes, and cable entry plugs are included. The frame has four leveling feet with 5/16-18 threads, a caster pattern of four 0.31 in (8 mm) holes, and three 0.56 in (14 mm) lagging points.
Yes, this part is the frame only. The C4 modular system lets you configure rails, doors (solid, acrylic window, vented full or split/barn), solid or vented side panels, interchangeable top and bottom panels, and accessories such as cable management and PDUs.
It is mild steel finished in RAL9005 Black textured powder coat, manufactured in Canada (country of origin CA), TAA-compliant, and RoHS, REACH and USMCA compliant.
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