Sta-Kon RAA23 INS NYLON AIRCRAFT SPLICE 22-18 AWG

The RAA23 is sized for 22 to 18 AWG stranded copper wire, and the red insulation is the standard color code for that range. If your conductor is 16 to 14 AWG you need the next size up, not this one, because crimping an oversized conductor into a 22-18 barrel will not give a reliable mechanical grip.

Yes, it carries a 600 V rating, which covers standard commercial and industrial branch circuit and control wiring. It is also UL recognized under file E9809, so it will satisfy an inspector looking for a listed insulated splice on 600 V class conductors.

The RAA23 is rated to 105 degrees C. That covers THHN and most machine tool and control panel wiring, where 90 C conductors are the norm. For higher temperature work near heaters, exhaust, or furnace sections, a nylon splice is the wrong choice and you want a high temperature insulated or non insulated crimp with heat shrink.

Nylon, like the barrel insulation on the RAA23, is tougher and more abrasion and solvent resistant than vinyl, and it holds its shape better during the crimp, so it is the usual pick for panel work, vibration prone equipment, and anywhere wire is pulled through raceway after termination. Both carry the same 600 V class duty here; the difference is mechanical durability, not electrical.

You should not. An insulated splice in the 22-18 AWG range needs a proper ratcheting or controlled cycle crimp tool with the correct red nest, so the copper barrel is compressed evenly without splitting the nylon. Cheap plier crimpers deform the insulation and give a joint that pulls apart under vibration, which defeats the point of a nylon barrel.

Country of origin on the RAA23 is the United States, which matters if you are buying against a Buy American or domestic preference clause on a government, transit, or institutional job. The ordering part number is simply RAA23.

The barrel is copper and sized for 22-18 AWG conductors. Crimp splices of this type grip best on stranded wire, since stranding compacts under the die; solid conductors in small gauges can back out of a crimped barrel under vibration. For solid wire in a fixed junction box, a listed twist on or push in connector is the more common choice.