PRS-WR-THHN
THHN / THWN-2 building wire
600 V copper or aluminum conductors for conduit and tray feeders.
Quote by AWG or kcmil, color, and total feet. Note copper versus aluminum.
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Building wire and DLO for data centers
Conductor on a US data center job is ordered by the pull. THHN and XHHW fill conduit and tray. DLO is the flexible lead around batteries and generators. We quote copper or aluminum, gauge, and length for projects nationwide, including industrial corridors such as Ohio and Georgia.
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How building wire is used in data center power distribution
Wire is the conductor between the gear: feeders in tray and conduit, branch circuits to panels and equipment, and flexible leads on batteries and generators. THHN/THWN-2 is the everyday building wire. XHHW-2 is the usual step up for larger feeders and wet locations. DLO, with fine strands, is what bends at a battery cabinet or a generator terminal where a stiff feeder will not.
On a US hall the big pulls happen after pathway is up and before termination. Electricians order by the reel or by total feet per color and size, often in parallel sets for the larger feeders. The landing hardware is not the same purchase. Match the barrel to the stranding using lugs, then jacket the splice with tape if the detail calls for it.
Copper versus aluminum is a spec decision, not a catalog default. Aluminum saves weight and cost on some feeders and needs the lug and the torque the gear allows. Put the metal, the AWG or kcmil, and the length on the quote. Projects in markets such as Ohio and Georgia use the same conductor types. The job location still belongs on the form because freight and timing are part of the price.
Feeder wire versus flexible leads
THHN/THWN-2 is the everyday building wire in conduit and tray. XHHW-2 is the usual ask for larger feeders and wet locations. DLO, with its fine stranding, bends where a stiff feeder will not: battery strings, generator leads, and gear that moves during maintenance.
Those conductors land on lugs. A compression lug sized for stiff building wire is the wrong barrel for DLO. Put the stranding in the notes.
How wire gets priced
Send AWG or kcmil, copper or aluminum, color, and total feet or reels. Paralleled feeders should say how many conductors per phase. We do not publish a per-foot list price. The number comes back on the quote for that job.
Representative quote lines
PRS-WR-XHHW
XHHW-2 feeder wire
Cross-linked feeder conductor for wet locations and larger ampacity runs.
Quote by size, number of conductors if paralleled, and put-up length.
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PRS-WR-DLO
Flexible DLO cable
Fine-strand locomotive cable for battery strings, generators, and movable gear.
Quote by AWG, voltage class, and length. Color and lug-ready ends help the quote.
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Codes keep a quote attached to the right line in this catalog. They are not a manufacturer part number. If you have a spec, put it in the notes. We price that request, not a shopping cart.
Frequently asked questions
When is THHN the right wire, and when is XHHW?
THHN/THWN-2 is the standard 600-volt building wire for many conduit and tray pulls. XHHW-2 is the cross-linked feeder conductor crews ask for on larger ampacity runs and in wet locations. If the one-line names a type, quote that type. If it only names a size, say so and we will not pretend the insulation is settled.
What is DLO cable used for in a data center?
DLO is flexible, fine-strand cable for battery strings, generator leads, and other landings that have to move or bend tightly. It is a poor substitute for a long feeder pull, and a stiff THHN lug is often the wrong barrel for it. Call out flex strand when you quote compression lugs.
Should the feeder be copper or aluminum?
That comes from the gear and the spec. Both show up on US data center feeders. Aluminum needs lugs listed for it and a termination the panel allows. Send the metal with the size. A quote that assumes copper will be wrong if the drawing says aluminum.
How do I specify quantity for wire?
Feet or reels, plus color and how many conductors if the feeder is paralleled. A single reel count without a length is hard to price. If you only know circuit amps, say that in the notes, but size and length are what lock the number.
Does wire lead time match breaker or transformer lead time?
No. Building wire is not the multi-year large power transformer problem described in transformer lead times. It still is not instant. Odd sizes, aluminum, and large kcmil pulls can sit longer than a common THHN reel. Timing is part of the quote, not a number on this page.
Can you quote just the terminations?
Yes. Lugs, dies, and tape can be requested without a full wire pull. If the conductor is already on site, name the size and whether it is flex strand so the lug matches what is in the tray.