Sta-Kon C52-TB UNINS FLAG TERM, 2/0 AWG 1/4 IN BLT

The C52-TB is built for a 1/4 inch bolt or stud. That means it lands on a 1/4-20 stud on a breaker, bus bar, motor terminal or ground bar without needing a washer stack to take up slop in the tongue hole.

Yes. It carries UL file E9809, which is the listing reference a specifying engineer or AHJ will look for on a wire termination submittal.

A flag terminal puts the bolt tongue at a right angle to the wire barrel, so the conductor runs parallel to the mounting surface instead of straight into it. Electricians reach for one like the Sta-Kon C52-TB in shallow enclosures, tight motor peckerheads, and crowded panel gutters where a straight terminal would force a sharp bend in a heavy conductor. If you have room to bring the wire in square to the stud, a standard straight ring or spade terminal is the simpler choice.

It's a non-insulated terminal, bare metal front to back. Nothing covers the barrel or the crimp, so if the termination needs to be insulated for your application you add heat shrink or tape yourself after crimping. Bare barrels are also what you want when the connection will be inspected or when the lug sits against a grounded surface where sleeving would just get in the way.

The terminal body is copper, with a metallic (unplated bare metal) finish. Copper-bodied terminals are intended for copper conductors. Aluminum conductors need a connector specifically marked AL or AL9CU, so don't substitute this one on an aluminum feeder.

Heavy non-insulated copper barrels like this one are made to be compressed with a proper crimp die, not squeezed with pliers. A hand or hydraulic crimper with the die matched to the barrel is what produces the full-circumference compression the UL listing (file E9809) is based on. A pliers-pinched barrel loosens under thermal cycling and is the usual cause of a hot lug on a motor or panel connection.

Country of origin is the United States, so the C52-TB can be submitted on work carrying a domestic sourcing requirement. Federal, state and institutional procurement packages routinely ask for that line item, and it is on record for this terminal.

Order it as Sta-Kon C52-TB. That one designation covers it; there are no finish, size or packaging variations to pick between, so the model number alone is enough for a distributor or purchasing system to pull the right item.