Sta-Kon RC713 INS NYL RNG TERM 12-10 BLT 1/4 YEL

The RC713 is sized for 12 to 10 AWG stranded copper conductor. The yellow nylon insulation is the color code for that range, so on a panel you can tell at a glance which terminals are on the 12-10 runs versus the smaller blue (16-14) or red (22-16) bodies. Wire outside 12-10 AWG will either not retain in the barrel or will not fully insert, so step to the correct body size rather than forcing it.

Yes. The RC713 has a 1/4 inch bolt ring, so it lands on 1/4-20 studs, breaker lugs and ground screws of that size. The ring is a closed tongue, meaning the bolt has to come out to install or remove it, unlike a spade or flanged fork terminal that slides in under a loosened screw.

The Sta-Kon RC713 carries a 600 V rating, which covers standard commercial branch circuit and motor control panel wiring. It is UL recognized under file E9809.

Nylon insulation, as used on the RC713, is the tougher of the two. It resists abrasion and nicking when terminals are pulled through a wire bundle or stuffed into a crowded gutter, and it holds up better to higher ambient temperatures in a motor control enclosure. Vinyl is the lower cost option and is common on general automotive and low temperature work. For panel and MRO work where the terminal gets handled and re-dressed, nylon is the one to specify.

Copper. That matters because a copper barrel is for copper conductor only, not aluminum. If you are terminating aluminum wire you need an AL/CU rated connector with the proper inhibitor compound instead.

Insulated ring terminals in the 12-10 AWG range crimp with an insulated-terminal tool using the yellow die nest. Do not use an uninsulated or open-barrel die, and do not crimp with pliers. The crimp has to compress the metal barrel through the nylon sleeve without splitting it, which is what the color-matched nest is sized for.

The Sta-Kon RC713 is manufactured in the United States, which is what government, institutional and federally funded projects with domestic preference language typically ask for on electrical components.

Order by Sta-Kon part number RC713. That number identifies the nylon insulated ring terminal for 12-10 AWG wire with the 1/4 inch bolt ring in yellow, so it is the one to put on a standardized MRO stock list.