PRS-LG-COMP
Copper compression lug
Long-barrel and standard compression lugs for copper conductors.
Quote by conductor size, stud hole, and one-hole or two-hole. Note flex strand if it is DLO.
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Compression lugs and crimp tools
A lug that does not match the conductor or the stud gets cut off and done again. Data center terminations in the US run from building-wire feeders to fine-strand DLO on batteries. Quote the wire size, the stud, and whether the barrel is meant for stiff strand or flex.
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How lugs and crimp tools are used on data center terminations
Lugs are how a conductor lands on a bus, a breaker, or a ground bar. Compression lugs are crimped and stay put. Mechanical set-screw lugs come apart and cover a range of stranding, including some aluminum bodies. The stud hole, one-hole or two-hole, has to match the gear. The barrel has to match the wire, especially when the conductor is fine-strand DLO rather than ordinary building wire.
The tool is part of the same work. A crimp is only as good as the die index the lug calls for. Manual tools cover smaller barrels. Hydraulic heads cover the feeders. Buying lugs without the die the crew will use is how terminations get redone. Quote the wire and the lug together when both are still open.
These landings show up everywhere a hall terminates: switchboards, ground bars, battery cabinets, and generator gear. Tape jackets many of those joints after the crimp. The quote is the hardware. Torquing and crimping are the crew's work under their spec, not a procedure this page is teaching.
Compression versus mechanical
Compression lugs are the permanent landing on copper conductors when the die and the barrel agree. Mechanical set-screw lugs come apart and tolerate a wider stranding range, including some aluminum bodies. Two-hole lugs are common on bus and gear. One-hole lugs show up on smaller devices.
The conductor itself is quoted under wire. Send both if the pull and the termination are one buy.
The die has to match the lug
A crimp tool is only useful with the die index the lug calls for. Manual tools cover the smaller barrels. Hydraulic heads cover the feeders. Name the lug series or the die color if you already have a spec. We price the tool to that index, not to a generic crimper.
Representative quote lines
PRS-LG-MECH
Mechanical set-screw lug
Set-screw lugs where the connection has to come apart or the stranding varies.
Quote by conductor range and mounting. Aluminum-bodied lugs are called out separately.
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PRS-TL-CRIMP
Compression tool and dies
Manual or hydraulic crimp tools and the dies that match the lug index.
Quote by hand versus hydraulic, and the die index or lug series you are installing.
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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
Compression lug or mechanical lug?
Compression when the spec wants a crimped copper connection and you have the matching die. Mechanical when the joint has to come apart or the stranding varies, and when an aluminum body is what the conductor requires. Two-hole lugs are common on bus. Say which the gear is drilled for.
Why does DLO need a different lug?
DLO is fine strand. A barrel made for stiffer building wire can fail to hold it even when the AWG number matches. Call out flex strand on the wire quote and on the lug quote. The catalog code is not a flex-rated part number by itself.
What do you need to quote a lug?
Conductor size and metal, stud hole diameter, one-hole or two-hole, and long barrel or standard if the spec cares. A photo of the bus landing helps. Without the stud size, the lug may not bolt up.
Do I need the crimp tool if I already have one?
Only if you need the die for this lug series. A hydraulic head you own is useless for a die index it does not have. Name the lug series or the die color. We price the tool to that, not to a generic crimper.
Are install steps included?
No. The quote is materials. Crimping and torquing belong to the crew and the manufacturer's instructions for the lug they install. We will not publish a field procedure that substitutes for that.
How fast are lugs available?
Common copper one-hole lugs and an odd two-hole long barrel for a large flex conductor are different. Dies can be the slow piece. Lead time is on the quote for the size you named. We do not list a shelf quantity.