Sta-Kon RZ22-6 INSNYL RING TERM, 26-22, No6, YELLO

The RZ22-6 is sized for 26 to 22 AWG stranded wire. That is the smallest of the common terminal ranges, used on control, signal, and low-current circuits. If you are terminating 22 to 16 AWG or 16 to 14 AWG conductors, this barrel is too small to grip them properly and you need the next size up in the series. The yellow nylon insulation here is Sta-Kon's own color code for the 26-22 range, not the usual 12-10 AWG yellow you may be used to on vinyl terminals, so go by the printed wire size rather than the color.

The ring tongue is a No. 6 size, so it drops over a #6 screw or stud. On a terminal block, ground lug, or device screw of that size it seats flat. For a #8 or #10 stud the ring will not pass over the threads, so order the matching tongue size instead.

Yes. The RZ22-6 carries a 600 V rating, which covers standard control panel, motor control, and building low-voltage work. Combined with the 26-22 AWG barrel, it is a panel and signal-circuit terminal rather than a power lug.

A ring terminal like the RZ22-6 has a closed tongue, so the screw has to come all the way out to install or remove the wire, but the connection cannot vibrate off the stud. A fork or spade terminal slides in under a loosened screw, which is faster for service work but can back out. For permanent control panel and equipment wiring, especially anything that vibrates, the closed ring is the one to use. Pick a fork style if you expect to swap wires often on a crowded block.

The barrel is copper, which means it is intended for copper conductors only. Crimping copper onto aluminum wire creates a dissimilar-metal joint that corrodes and loosens over time, so use an AL/CU rated connector if your conductor is aluminum.

Sta-Kon part number RZ22-6. The designation breaks down as the RZ nylon insulated ring series, 22 for the 26-22 AWG wire range, and 6 for the No. 6 stud size. Insulation is yellow.

Nylon, which is what insulates the RZ22-6, holds up better than vinyl to heat, abrasion, and the funnel-entry support it gives the stranded conductor. On 26-22 AWG wire those fine strands are easy to splay during insertion, and the nylon sleeve guides them into the barrel. It is the usual choice for control panels and anywhere the harness gets handled.

Use a crimp tool matched to insulated terminals in the 26-22 AWG range. Insulated barrels are crimped through the sleeve, so a die intended for bare terminals will cut the nylon, and a die sized for a larger gauge will under-compress the barrel and leave a high-resistance joint. Nothing else is needed to complete the termination beyond the terminal and the correct die nest.

Country of origin on the RZ22-6 is the United States, which is what institutional and government buyers working to domestic-sourcing requirements usually need to confirm before they standardize on a terminal.