Material file · Tray cable
Buying tray cable from plants and data centres.
Multi-conductor cable pulled through tray, left over in cut lengths that carry a conductor count, a shield and a history the jacket has to be read for.
Tray cable is the family that resists a single description. TC is 600 V, 90 °C multi-conductor cable made for pulling through cable tray, and TC-ER adds the ability to run exposed between the tray and the equipment it feeds, which is why so much of it finishes its working life cut in the middle of a plant rather than on a reel.
A tray pull is planned in one direction and executed in another. Conductor counts change when a cabinet layout changes, a run is re-routed around a new duct, and the leftover is a length of twelve-conductor cable that nobody wants to throw away and nobody has an immediate use for.
Buy quote request
Tell us what you have
Type, conductor, voltage class and how much is on hand. Photos can follow by text or email. A buyer reviews the lot before anyone talks about money.
Prefer to talk it through? 954-740-1983 · saleselectricalbuyers@gmail.com
01 Construction
Why no two lots look alike
Tray cable is built to a project far more often than building wire is. Pair counts, conductor sizes, shielding, jacket colour and the presence of a drain wire all vary with the specification, so two drums from two jobs can share a voltage class and agree on almost nothing else.
That variety is the review's main difficulty. A lot is described by construction rather than by family: how many conductors, at what size, whether there is a shield, whether the pairs are numbered, and what the jacket print actually says when it is read in good light.
02 Identification
Counts and shields
The print tells most of it, provided it is read carefully. A tray cable print runs through conductor count, gauge, voltage and temperature, and the shield is not always mentioned there even where one is present under the jacket. The cut end is what confirms it.
| Construction | What it looks like | What decides the review |
|---|---|---|
| Unshielded | Bare conductors, numbered | Count, gauge, jacket |
| Foil shield | Metallic wrap, drain wire | Shield continuity, drain |
| Braid shield | Woven metallic cover | Coverage, corrosion |
| Paired | Twisted pairs, colour coded | Pair count, identification |
03 Origin
Leftovers from a tray pull
Data centre work leaves clean cut-offs, often long and sometimes still banded, from pulls cut to a route that then changed. Plant work leaves shorter pieces that are frequently dirty, and a fair share of it comes out of tray that has been carrying load for twenty years. Armoured cable from the same plant is counted on a different basis and should not share its pallet.
Both are worth listing, but not in the same line. A drum of unused twelve-conductor TC-ER and a bundle of oil-stained four-conductor pieces are different propositions, and separating them gives a buyer a lot that can be described without caveats attached to every second sentence.
04 Condition
Oil, heat and the jacket
A plant jacket earns its condition. Oil softens some compounds, heat hardens others, and a run in tray above a furnace or a press can be brittle at the top and sound underneath. The jacket is checked by bending a short length, not by looking at it from a distance.
Heat ageing shows as a surface that has gone dull and cracks at a bend. Oil shows as a dark, swollen jacket that no longer slides against itself, and it often travels down the conductor under the jacket where nothing can be seen until the end is cut back.
Wipe a foot of jacket and bend it through a right angle. If the surface cracks, the rest of the coil is described with that in mind.
FAQ Seller questions
What sellers ask before they send a list
Answers describe how the buying desk works. They are not an offer, a rate or a promise of purchase.
What is the difference between TC and TC-ER?
TC-ER carries an exposed-run rating that allows it to leave the tray and travel to equipment without conduit, which makes it the version most plants specify. TC stays in the tray. Both are 600 V, 90 °C multi-conductor cable, and the print on the jacket says which one a coil is.
Do you buy shielded tray cable?
Yes, and the shield is part of the description. A foil shield with a drain wire and a braid shield are reviewed differently, because shield continuity and corrosion matter to a buyer and both are easy to check at a cut end.
Is oil-stained tray cable still worth listing?
Usually. Oil on the outside is a condition note; oil that has travelled under the jacket is more serious. A buyer will cut back an end and look at the conductors before deciding how the coil is described, and the lot is not written off on appearance alone.
Are short tray cut-offs worth collecting?
They are, because exposed runs between tray and equipment are often short. Lengths of ten or twenty feet with a known conductor count are useful again, and bundling them by construction makes the difference between a lot and a pile.
What if the conductor numbers have worn off?
Say so. Numbered conductors matter on control and signal work, and a length without legible numbers is described as unidentified rather than assumed to be standard. A buyer can still review it on count, gauge and condition, but the terms reflect the uncertainty.
Buy quote request
Tell us what you have
Type, conductor, voltage class and how much is on hand. Photos can follow by text or email. A buyer reviews the lot before anyone talks about money.
Prefer to talk it through? 954-740-1983 · saleselectricalbuyers@gmail.com