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INS NYL RING TRM 4 BOLT No10 YELLOW
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Subgroup:
- General Terminals
- Product Type:
- Nylon Insulated Ring Terminal
- Standards:
- UL E9809
- Voltage Rating:
- 600 V
- Wire Size:
- 4 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Yellow
- Product Material:
- Copper
Sta-Kon RF4-10 – Frequently Asked Questions
1) What wire size does the Sta-Kon RF4-10 ring terminal take?
The RF4-10 is sized for 4 AWG copper conductor. It is a single-size barrel, so it will not grip smaller conductors like 6 or 8 AWG reliably - you need the terminal built for that gauge instead. The yellow nylon insulation is the color code on this part.
2) Is the Sta-Kon RF4-10 rated for 600 volt circuits?
Yes. The nylon insulated ring terminal carries a 600 V rating, which covers normal commercial branch circuit and panel work. It is UL recognized under file E9809.
3) Should I use a ring terminal or a fork terminal on a 4 AWG feeder landing?
Use the ring. A ring tongue like the RF4-10 captures the No. 10 bolt completely, so the conductor cannot vibrate off the stud if the hardware backs out. Fork or spade tongues slide off sideways and are meant for places you need to pull the wire without removing the screw. On any feeder or vibration-prone equipment landing, the ring is the right choice.
4) Do I need a special crimp tool for the Sta-Kon RF4-10?
Yes, this is a crimp-on terminal, not a mechanical lug, and 4 AWG is beyond hand-plier range. You need a Sta-Kon crimp tool or die set rated for the 4 AWG nylon insulated barrel. The tool is not supplied with the terminal.
5) Can I crimp the RF4-10 onto aluminum wire?
No. The barrel is copper and the terminal is built for copper conductor. Aluminum needs an AL9CU rated connector with the proper compound to prevent galvanic corrosion and creep at the joint.
6) What is the yellow color on Sta-Kon terminals supposed to tell me?
On this part the yellow nylon is simply how the 4 AWG RF4-10 is identified in the bin. Note that the common small-gauge color code (red, blue, yellow for 22-10 AWG) does not extend up to heavy gauges, so do not read yellow here as a 12-10 AWG part - confirm by the wire size marking, 4 AWG.
7) What is the exact part number to order this 4 AWG ring terminal?
Order Sta-Kon RF4-10. That single model covers the 4 AWG, No. 10 stud, yellow nylon insulated ring terminal, and it is made in Mexico.
How fast can I get the Sta-Kon RF4-10 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 RF4-10 come with a warranty?
Absolutely. The Sta-Kon RF4-10 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 RF4-10?
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 RF4-10 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.