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INS NYL BUTT SPLICE 12-10 AWG MYLAR
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Subgroup:
- Splices
- Product Type:
- Nylon Insulated Butt Splice
- Standards:
- UL E9809
- Wire Size:
- 12-10 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Yellow
- Product Material:
- Copper
Sta-Kon RCC21M – Frequently Asked Questions
1) What wire sizes does the Sta-Kon RCC21M butt splice accept?
The RCC21M is sized for 12-10 AWG conductors on both ends. It is a butt splice, so it joins two wires end to end within that same range. For 16-14 AWG or 22-18 AWG runs you need the corresponding smaller splice, not this one, because an undersized conductor in a 12-10 barrel will not crimp reliably.
2) Why is the Sta-Kon RCC21M splice yellow?
Yellow is the standard insulation color code for 12-10 AWG terminations, and that is the color of the RCC21M. On a panel or harness it lets an inspector or the next electrician identify the conductor range at a glance without pulling the splice apart. Red is 22-18 and blue is 16-14 in the same color convention.
3) Is the barrel on this butt splice copper or steel?
Copper barrel with nylon insulation over it. Copper matters here because it keeps the splice conductive and ductile enough to take a proper crimp on stranded copper wire, and it avoids the dissimilar-metal issue you get joining copper conductors through a steel sleeve.
4) What is the difference between a nylon insulated butt splice and a vinyl one?
Both do the same electrical job, but the nylon sleeve on the Sta-Kon RCC21M is tougher and holds up better to abrasion, pull-through in conduit, and heat than vinyl. Maintenance crews and panel builders generally spec nylon where the splice will be handled, bundled, or exposed to temperature cycling; vinyl is the lower-cost choice for light duty indoor work.
5) What part number do I order for the Sta-Kon 12-10 AWG yellow butt splice?
Order Sta-Kon RCC21M. That is the manufacturer part number for the yellow nylon insulated butt splice rated 12-10 AWG, and it is the only configuration the model covers, so there is no finish, length, or color option to specify.
6) Do I need a special crimp tool for the RCC21M butt splice?
Use a crimper with the yellow 12-10 AWG nest. The insulated-terminal dies are color coded to match the splice, and crimping a 12-10 barrel in the blue or red nest will either under-compress the joint or cut the nylon. Nothing is included with the splice itself, so the tool is a separate line on the order.
7) Are Sta-Kon RCC21M splices made in the USA?
Country of origin is the United States. That matters for Buy American and domestic-preference procurement on federal, municipal, and institutional jobs where the submittal has to show origin.
How fast can I get the Sta-Kon RCC21M 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 RCC21M come with a warranty?
Absolutely. The Sta-Kon RCC21M 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 RCC21M?
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 RCC21M from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.