Thomas & Betts 54155-TB T&B 54155-TB 1/0AWG PNK 1H COP LUG

The 54155-TB is built for 1/0 AWG conductor. It is a one-hole copper compression lug, so the barrel is sized for 1/0 only, not a range. Running 2 AWG or 2/0 through it will either not crimp down properly or will not enter the barrel.

Pink die, code 42. The die color and code are marked on the lug so a crimp can be verified after the fact, and there is a peep hole in the barrel to confirm the conductor is fully seated before you crimp.

Yes. The tongue has a single round hole for 1/2 inch stud hardware, and the tongue is straight (not angled), so it lands flat on a bus bar or breaker pad in line with the conductor run.

The closest Burndy counterpart is the HYLUG family of tin-plated copper terminal lugs. The Thomas & Betts 54155-TB is a one-hole straight-tongue compression lug in copper with a tin-plated finish, sized for 1/0 AWG conductor and crimped with die code 42 (pink). Burndy's HYLUG long barrel tin-plated copper terminal lug matches it on base metal and plating, so the two interchange as copper compression terminations; confirm the HYLUG catalog number you order is the 1/0 AWG, one-hole version with the stud size your pad requires, since HYLUG spans many conductor and stud combinations.

The Thomas & Betts 54155-TB has a single round stud hole on a straight tongue sized for a 1/2 inch stud, with a peep hole for conductor inspection and a tin-plated copper body, and it covers the 1/0 AWG conductors. For the larger feeders, the Burndy YA31L Hylug is a 350 kcmil copper one-hole compression lug also on a 1/2 inch stud, so both land on the same hardware pattern while covering different conductor sizes.

The lug is copper with a tin plating. Tin plating is what lets a copper lug make up against an aluminum bus pad without a bare copper-to-aluminum junction, which is why tin-plated copper lugs are the standard choice in mixed-metal gear. It is also RoHS compliant.

Pricing is per each, but they ship in multiples of 10. The inner pack is 10 pieces and the full carton is 100. So an order of 25 is not possible, 20 or 30 is.

Reference figures on the 54155-TB are 1.25, 0.52 and 0.5 inches (dimensions B, E and F), and T&B notes they can vary up to .030 inch. Barrel length, barrel shape and tongue width are all standard rather than long-barrel or wide-tongue, so it occupies no more space than a typical 1/0 one-hole lug when you are checking bending space and stud centers.

A compression lug is crimped once with a matched die (pink, code 42 here) and never needs re-torquing, which is why it is preferred for feeder terminations in switchgear, transformers and generator connections where you cannot get back in to check a set screw. A mechanical set-screw lug is the better pick when you need to terminate in the field without a hydraulic crimper, or when the conductor size may change later. If your termination is inside factory switchgear, note that gear makers often specify their own crimp accessory, such as the Square D Masterclad Burndy crimp lug connector.

No. The Square D Masterclad crimp lug is a switchgear connector accessory supplied for Masterclad metal-clad switchgear, so it is selected to suit that assembly rather than as a general-purpose terminal. The Thomas & Betts 54155-TB is a standalone one-hole copper compression lug for 1/0 AWG with a tin-plated finish, used anywhere a 1/0 conductor lands on a stud or pad. Use the Masterclad part when the connection is inside Masterclad gear, and the 54155-TB for ordinary field terminations.

The Thomas & Betts 54155-TB uses a standard barrel length with a standard barrel shape and standard tongue width, crimped with one die set at code 42. Burndy's HYLUG long barrel tin-plated copper terminal lug is the alternative when a longer barrel is wanted, typically where more than one crimp along the barrel is specified. Both are tin-plated copper, so the choice is about barrel length and crimp pattern, not conductor material. If your spec calls out a standard barrel, the 54155-TB is the direct fit for 1/0 AWG.

6.69 lbs per 100 pieces. Carton dimensions are given as 12.4 by 6.4 by 4 inches, which is useful if you are consolidating a material order onto a pallet.