Sta-Kon RBT863 INS FLUOR RING TERM, 22-18, 1/4, CL

The RBT863 is a 1/4 inch ring terminal, so it goes over a 1/4 inch stud, screw, or terminal block post. The closed ring means you have to pull the fastener all the way out to install it, unlike a spade or fork tongue that slides in under a loosened screw. That is the tradeoff you take for a connection that cannot vibrate off the stud.

Yes. The Sta-Kon RBT863 carries a 600 V rating, which covers standard commercial control panels, motor control circuits, and lighting branch circuits. It is also UL recognized under file E9809.

The RBT863 uses a fluoropolymer insulation sleeve rather than vinyl or nylon. Fluoropolymer is the choice where the termination sees high heat or chemical exposure that would soften or craze a vinyl sleeve, which is why it shows up in appliance, industrial oven, and engine compartment wiring rather than general building control work. If the job is an ordinary panel at ambient temperature, a nylon insulated ring terminal does the same electrical job.

The barrel is copper, which means this terminal is for copper conductors only. Crimping copper hardware onto aluminum conductor sets up a dissimilar metal joint that corrodes and loses tension, so for aluminum feeders you need a terminal specifically marked AL or AL9CU, not this one.

Blue is the standard color code band on insulated terminals and the RBT863 is blue, so it drops straight into the usual color-keyed crimp die on a ratcheting Sta-Kon style tool. If your crew already stocks blue terminals for a given conductor range, this one matches that color convention and the same die nest.

Country of origin on the RBT863 is the United States. For a federally funded or Buy American specified project, that is the data point the submittal reviewer is looking for on wire termination hardware.

Order by manufacturer part number RBT863 from Sta-Kon. That number covers the insulated fluoropolymer ring terminal with the 1/4 inch ring; there are no finish or size options to specify alongside it.