NEMA 20C Cable Ladder Tray Carbon Steel 100mm-150mm Depth ISO 1461 Coating
Product Details
NEMA 20C Cable Ladder
,Carbon Steel Cable Ladder
,Steel Ladder Rack
Steel Cable Ladder NEMA 20C is the class designation North American projects recognise for a ladder type cable tray used in ordinary locations, where the specification calls out a NEMA class rather than a European standard and the inspector checks the marking against the drawing.
The ladder is produced in carbon steel and stainless steel with 200 mm to 700 mm usable width, 100 mm to 150 mm rail height and rung pitch of 225 mm or 300 mm, in 2 m and 3 m modules. Steel thickness is selected from the NEMA load class table, so the section is sized to the actual cable weight rather than to habit.
NEMA 20C refers to a class C tray with a 20 inch nominal width family and a defined load and support span relationship. The practical consequence is a documented safe working load for the specified span, which is what the structural engineer and the electrical inspector both need to see before the route is released.
Hot dip galvanizing to ISO 1461 or ASTM A123 is the standard finish, applied after fabrication so cut ends and welds are protected. For washdown or coastal areas the same section is available in 304 or 316L stainless, and powder coating can be added for colour coding of normal and emergency supplies.
BENDIN manufactures this ladder at 7000 m per working day with 180 staff and thirty years of cable support production, exporting 60 to 70 percent of output to North American and European contractors. Load class, rung position and coating are checked on every batch, and marking matches the approved submittal.
Minimum order 600 pcs, 25 working day delivery, 10 to 30 USD per piece, pallet packing, terms L/C, D/P or T/T. Send the tray schedule and the support span and we will return the load class, the deflection calculation and the accessory list.
Certification and Standard Reference| Standard / Specification | Scope of Application | BENDIN Status |
|---|---|---|
| NEMA VE 1 | Cable tray systems, class designation and load class | Design compliance statement; submittal on request |
| IEC 61537 | Load and deflection of ladder systems | Design calculation and continuity check per order |
| ISO 1461 / ASTM A123 | Hot dip galvanized steel finish | Coating thickness measured per batch; record supplied |
| ASTM A240 | Stainless steel version | Material certificates and design reference supplied |
| UL 568 (reference) | Cable tray systems, US installation practice | Design compliance statement; submittal on request |
| ISO 9001:2015 | Quality management system | ISO 9001 certified; certificate copy on request |
BENDIN holds ISO 9001 quality certification and issues CE Declarations of Conformity. The standards above state the design and test basis of this product; third party test reports or national approvals are supplied on request and are not implied unless confirmed in the contract.
Technical Parameters| Parameter | Standard Range | Customization Available |
|---|---|---|
| Class | NEMA class C ladder, 20 inch family | class B, class D |
| Usable width | 200 - 700 mm | up to 900 mm |
| Rail height | 100 / 150 mm | 75 - 200 mm |
| Rung spacing | 225 / 300 mm | 450 mm |
| Material | Carbon steel | Stainless 304/316L |
| Finish | HDG to ISO 1461 | Pre-galvanized, powder coat |
| Standard length | 2000 / 3000 mm | cut to order |
| Load class | Per NEMA VE 1 table | engineered per span |
Dimensions, rung spacing and surface treatment are produced to project drawings. Load and deflection calculations are issued for spans above 3 m.
Typical Applications- North American industrial and commercial projects
- Plant rooms and electrical rooms
- Data centre and telecom routes
- Warehouse and distribution centres
- Water and wastewater facilities
Q: What does the 20C designation cover?
A: It identifies a class C tray in the 20 inch width family with a defined load and support span relationship, which is what the submittal and inspection are based on.
Q: Do you provide a load table for the span?
A: Yes. We issue the load class, deflection and support spacing for the specific cable weight, referenced to NEMA VE 1.
Q: Is UL documentation available?
A: UL 568 references and test documentation can be provided on request, alongside mill certificates and coating records.
Q: What is the minimum order?
A: Minimum order 600 pcs, delivery 25 working days, prices from 10 to 30 USD per piece.
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