Buyer's Guide
Compression Lug Die Index and Color Code Guide: Matching the Die to the Lug
The 12 ton U-die index and color code by conductor size, 8 AWG to 1000 kcmil, why the embossed index is the inspection mark, one crimp vs two, tool choices and a crimp inspection checklist.
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One-Hole vs Two-Hole Compression Lugs and NEMA Hole Spacing
One hole or two is decided by the pad, not the conductor. Where each is used, the NEMA hole spacings that matter (1 inch on 3/8 bolts, 1-3/4 inch on 1/2 bolts), ground bar patterns, and the mistakes that get lugs rejected.
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Long Barrel vs Standard Barrel Compression Lugs: Which to Specify
Long barrel lugs take two crimps and more conductor engagement; standard barrel lugs fit where space is tight. When each is the right spec, what stays the same, and why short barrel is just another name for standard.
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Which Compression Lug for Which Wire Gauge: 10 AWG to 1000 kcmil Buying Table
Gauge by gauge, 10 AWG to 1000 kcmil: the lug family to order, one or two hole, studs stocked, die index and color code, and where each size shows up on the job. A stocking list for trucks and panel shops.
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Cable Type to Lug Cross Reference: THHN, XHHW, DLO, Welding, Battery and Aluminum
One table that maps the cable on the reel to the lug family it needs: THHN, XHHW-2, USE-2, PV wire, DLO, welding cable, battery cable, MV feeder and aluminum. Stranding class decides the lug, not the gauge alone.
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DLO Lugs vs Standard Compression Lugs: What Changes and When to Use Each
DLO cable has finer Class I stranding and a larger diameter than THHN or XHHW of the same gauge. A standard compression lug will not crimp it correctly. Here is how to tell the two lug types apart, when each is right, and how to spec them.
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Rigid Compression Fittings Buyer's Guide: Threadless Couplings and Connectors for RMC and IMC
How threadless compression couplings and connectors work on rigid and IMC conduit, when to use them instead of threaded fittings, sizes 1/2 to 2 inch, UL 514B listing, and Bridgeport and RACO cross references.
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