Sta-Kon RAA21 INSUL NYLON BUTT...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$50.82
$1.97
Sta-Kon RAA21 INSUL NYLON BUTT SPLICE 22-18 AWG

Sta-Kon RAA21 INSUL NYLON BUTT SPLICE 22-18 AWG

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Model: RAA21
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$50.82
$1.97
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INSUL NYLON BUTT SPLICE 22-18 AWG

Manufacturer Resources

Product Specs

Country Of Origin:
United States (US)
Product Subgroup:
Splices
Product Type:
Nylon Insulated Butt Splice
Standards:
UL E9809
Temperature Range:
105 °C
Voltage Rating:
600 V
Department:
Electrical
Product Group:
Wire Termination
Product Color:
Red
Product Material:
Copper

Sta-Kon RAA21 – Frequently Asked Questions

1) What wire sizes does the Sta-Kon RAA21 butt splice take?
The RAA21 is sized for 22 to 18 AWG stranded or solid copper wire, both ends. Red insulation is the standard color code for that range, so if the barrel you are replacing is red it is almost certainly the same 22-18 size class. For 16-14 AWG you need the next size up (blue), not this one.
2) Can I use the RAA21 nylon butt splice on 120V and 277V control or fixture wiring?
Yes. The splice carries a 600 V rating, which covers 120 V, 208 V, 240 V and 277 V branch and control circuits. It is UL recognized under file E9809.
3) Will a nylon insulated butt splice hold up inside a hot luminaire or a rooftop unit control cabinet?
The RAA21 is rated to 105 degrees C, which is the usual ceiling for fixture and control-panel wiring insulation, so it is suitable inside ballast compartments, light fixtures and HVAC control enclosures. Above 105 C you need a high-temperature splice instead.
4) Is the RAA21 a crimp splice or does it need heat?
It is a crimp-only connector. The barrel is copper with a nylon insulating sleeve, so it is installed with a standard insulated-terminal crimp tool, one crimp per side. There is no adhesive or heat-shrink element, so it is not a sealed or submersible splice.
5) Nylon or vinyl insulated butt splice: which should I use?
Nylon, like the RAA21, is the tougher choice where the splice gets pulled through conduit, bundled, or sits in a hot enclosure, and it resists abrasion and most oils better than vinyl. Vinyl barrels cost less and are fine for dry, low-stress interior work but soften at lower temperatures. The RAA21's nylon sleeve is rated to 105 C at 600 V.
6) What exact part number do I order for the Sta-Kon 22-18 AWG red nylon butt splice?
Order Sta-Kon RAA21. That is the manufacturer part number for the red, nylon insulated, 22-18 AWG butt splice, and it is made in the United States.
How fast can I get the Sta-Kon RAA21 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sta-Kon RAA21 come with a warranty?
Absolutely. The Sta-Kon RAA21 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sta-Kon RAA21?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Sta-Kon RAA21 from ZenSupply?
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