4" Aluminum Straight Sections

Aluminum Straight Sections Numbering Example:
09 - 4D02 - 0012 - 36 -
Bottom Type
06 - 6" Rung Spacing
09 - 9" Rung Spacing*
12 - 12" Rung Spacing
18 - 18" Rung Spacing
VT - Ventilated/Trough
SC - Solid Corrugated
VC - Vented Corrugated
* Standard Rung Spacing 		Tray System Number
This identifies the specific tray design and is used as a product number prefix for straight sections. 		Length
0010 - 10'-0"
0012* - 12'-0"
0020† - 20'-0"
0024 - 24'-0"
* Standard for Series 1
† Standard for Series 2 		Width
06 - 6"
09 - 9"
12 - 12"
18 - 18"
24 - 24"
30 - 30"
36 - 36" 		Rung Options
Add suffix for non-standard rung.

A

Aluminum

Click on product number to download data sheet.

Rail Height Load Depth Rail Flange Nema Class CSA Class Ladder type only Ladder Ventilated / Trough Corrugated Bottom Amp Rating Safe Load Data (LBS./FT.)
Support Span (FT.) / Deflection (IN.)
6 8 10 12 14 16 18 20 22 24 26 28 30
4" 3" 1" 12A C 4D02 4D03 4D14 4D15 5D19SC
5D19VC		 1000 224 0.43 126 0.77 81 1.20 56 1.73
12B C 4D08 4D09 4D16 4D17 5D20SC
5D20VC		 1000 312 0.46 176 0.80 112 1.27 78 1.83 55 2.40 41 3.03
12C, 16A D, 3M 4D05 4D06 4D20 4D21 5D21SC
5D21VC		 1000 400 0.49 225 0.86 144 1.35 100 1.94 71 2.57 52 3.20 36 3.57 28 4.19
1 3/4" 20A, 16B D, 6M 4D10 4D11 4D18 4D19 5D22SC
5D22VC		 1200 526 0.44 325 0.85 208 1.32 144 1.90 106 2.59 81 3.39 64 4.28 52 5.29 42 6.25 35 7.41
20B, 16C E, 6M 4D12 4D13 4D23 4D24 5D23SC
5D23VC		 1600 526 0.82 469 0.92 300 1.43 208 2.06 153 2.80 117 3.66 93 4.63 75 5.72 61 6.81 50 7.92

Connectors & Fittings:

Necessary connectors and fasteners are supplied with all trays and fittings. Extra connectors for field cuts or spares must be ordered separately.

Safe Load:

Allowable cable load in pounds per linear foot uniformly distributed. Based on tray with standard rung on 9" centers and supported on simple beam with safety factor of 1.5 per NEMA VE1.

Concentrated Load:

All ladders with solid rungs and trays with corrugated bottoms will support a 200 lb. concentrated load applied at the center of the tray in addition to the NEMA -rated cable load without collapse (except NEMA Class 12A trays).

*Rail flange size determines which series connectors are needed. Please consult the chart above to determine the connectors you need.

SERIES 1

Fitting side rails have 2" tangents (flat portion beyond curvature) at the end of each fitting, to accommodate splice plates with four holes.

SERIES 2

Fitting side rails have 5" tangents at the end of each fitting, to accommodate splice plates with eight holes.