Sta-Kon RA2253 INS NYL LKG FORK TRM 22-16 No10 RED

The RA2253 is sized for 22 to 16 AWG stranded copper wire, which is the red color code range on Sta-Kon insulated terminals. If you are terminating 14 or 12 AWG, this is the wrong barrel size and the crimp will not hold.

It is built for a No. 10 screw or stud. The fork slot slides in under a loosened No. 10 terminal screw rather than requiring the screw to come all the way out, which is what makes it quick on strip terminal blocks and panel barrier strips.

Yes. The terminal is rated 600 V, which covers 120V, 240V and 480V control and power wiring within that limit. It is UL recognized under file E9809.

The tongue on a locking fork terminal has turned-up tangs at the open end that grip under the screw head, so the terminal resists backing out from under the screw under vibration. A plain spade will slide straight out if the screw loosens. The RA2253 is the locking style in 22-16 AWG for a No. 10 screw.

Country of origin is the United States. That is the detail institutional and government buyers with domestic sourcing language in their purchase orders usually need confirmed before they will release the order.

Use the fork if the screw cannot be fully removed or you want to be able to pull a conductor without disassembling the block. Use a ring where a conductor coming loose is unacceptable and you can take the screw out. The RA2253 splits the difference: it is a fork, so it slides in under a loosened No. 10 screw, but the locking tangs resist pull-out. For 22-16 AWG copper that is usually the right trade-off on control wiring.

It is a crimp-on terminal, not a solder or screw type, so it needs a crimper matched to insulated barrels in the 22-16 AWG range. A tool with a red-coded 22-16 nest will seat the barrel correctly without crushing the nylon sleeve. Pliers will not give a repeatable pull-out strength.

No. The barrel is copper, intended for copper stranded wire. Aluminum conductors need a terminal rated AL/CU with the appropriate inhibitor compound, so this one should not be used on aluminum.

Nylon. On the RA2253 the insulating sleeve is nylon, which takes more abrasion and a wider temperature swing than a vinyl sleeve and resists splitting when the crimp tool funnels the barrel. For panel work where terminals get bundled and pulled through wireways, that is the practical difference.

It will. Red is the standard insulation color for the 22-16 AWG range across insulated terminal lines, and the RA2253 follows it, so crews identifying barrel size by color on the bench will read it the same way as the rest of their stock.