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INSULATED TEFZEL BUTT SPLICE 22-18
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Insulation Material:
- Insulted Fluoropolymer
- Product Subgroup:
- Splices
- Product Type:
- Fluoropolymer Insulated Butt Splice
- Standards:
- UL E9809
- Temperature Range:
- 150 °C
- Voltage Rating:
- 600 V
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Red
- Product Material:
- Copper
Sta-Kon RAAT21 – Frequently Asked Questions
1) What wire gauge range does the Sta-Kon RAAT21 butt splice take?
The RAAT21 is sized for 22 to 18 AWG stranded copper wire, which is the red color code on insulated splices. Both barrel ends accept the same range, so you can join a 22 AWG conductor to an 18 AWG conductor in one crimp. Going larger than 18 AWG means stepping up to a blue (16-14) splice instead.
2) Can I use this red butt splice near an engine or in a high heat panel?
Yes. The RAAT21 uses Tefzel fluoropolymer insulation rated to 150 C, which is well above the 105 C ceiling on ordinary nylon or vinyl insulated splices. That is why it gets specified for engine compartments, aircraft and transit wiring, and hot equipment enclosures where standard splices would soften or crack.
3) Is the Sta-Kon RAAT21 rated for 600 volt circuits?
Rated 600 V, and UL recognized under file E9809. That covers control wiring, line voltage branch circuits and low voltage signal runs alike, so one splice works across a mixed panel.
4) Do I need a special crimp tool for a Tefzel insulated butt splice?
Use an insulated terminal crimper with the red 22-18 nest, the same die position you would use for any red insulated Sta-Kon. The fluoropolymer jacket is tougher than vinyl, so crimp fully to the tool stop rather than squeezing by hand with pliers, which deforms the insulation without compressing the copper barrel properly. Crimp both ends, one per conductor.
5) Is this splice heat shrink or just insulated?
It is a crimp-only insulated splice with a fixed Tefzel sleeve, not an adhesive lined heat shrink type. It will not seal against moisture on its own, so for outdoor or washdown locations add separate adhesive lined shrink tubing over the splice or choose a sealed heat shrink butt connector.
6) What exact part number do I order, and where is it made?
Order Sta-Kon RAAT21, a US-made insulated Tefzel butt splice for 22-18 AWG. For federal, transit or Buy American jobs, the domestic country of origin is on record for the part.
7) Will this butt splice work on solid wire, or only stranded?
Crimp butt splices like the RAAT21 are intended for stranded copper conductors, which compress and lock inside the barrel. Solid wire in a crimp barrel tends to pull out under vibration. For solid conductors in a junction box, use a twist-on connector or a terminal block instead.
How fast can I get the Sta-Kon RAAT21 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 RAAT21 come with a warranty?
Absolutely. The Sta-Kon RAAT21 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 RAAT21?
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selection,
installation tips, and troubleshooting. Contact Us
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