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EXP INS VINYL RING TRM, 18-14, No6
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Subgroup:
- General Terminals
- Product Type:
- Vinyl Insulated Ring Terminal
- Standards:
- UL E9809
- Voltage Rating:
- 600 V
- Wire Size:
- 18-14 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Blue
- Product Material:
- Copper
Sta-Kon RB857-200 – Frequently Asked Questions
1) What wire gauge does the Sta-Kon RB857-200 ring terminal crimp onto?
The RB857-200 takes 18 to 14 AWG stranded copper wire. That is the standard blue insulation range, and the terminal's barrel is blue to match, so on a panel you can identify the gauge band at a glance without pulling the lead.
2) What screw or stud size does this Sta-Kon ring terminal fit?
It is a No. 6 ring, so it drops over a #6 screw or stud. If your terminal block or ground lug uses a #8 or 1/4-20 stud, this ring tongue will not pass over it and you need a larger ring size in the same 18-14 AWG family.
3) Is this ring terminal rated for 600 volt control and panel wiring?
Yes. The RB857-200 vinyl insulated ring terminal carries a 600 V rating and is UL recognized under file E9809, which covers it for typical control panel, motor control, and fixture whip terminations at 600 V and below.
4) Should I use a ring terminal or a fork terminal on a terminal block?
A ring terminal like the RB857-200 is the closed-tongue choice: the screw has to come all the way out to install it, but once torqued the wire cannot be pulled off sideways. That is why ring tongues are specified for vibration-prone equipment, ground connections, and anything an inspector looks at twice. A fork or spade tongue slides in under a loosened screw and saves time on dense blocks, at the cost of that captive connection. For a #6 stud on 18-14 AWG wire where the connection stays put for years, use the ring.
5) Is the barrel on this Sta-Kon terminal copper or aluminum?
Copper. That means it is for copper conductors only, not aluminum feeders. Mixing copper-only terminals on aluminum wire is a dissimilar-metal connection and is not an approved termination.
6) Does the vinyl insulation on this terminal mean I can skip heat shrink?
The RB857-200 comes with a vinyl insulated sleeve over the barrel, so the crimp is already covered and no separate boot or shrink tube is needed for ordinary dry interior panel work. Vinyl is not a heat-shrink adhesive sleeve, so it does not seal against moisture. For wet locations or exterior enclosures, specify a nylon or heat-shrink insulated ring instead.
7) Is the Sta-Kon RB857-200 made in the USA for a government or institutional spec job?
Country of origin on the RB857-200 is the United States, which is what a federal, school district, or healthcare procurement file usually needs documented alongside the UL recognition under file E9809.
8) What is the exact manufacturer part number to order this blue No. 6 ring terminal?
Order Sta-Kon part number RB857-200. That single number covers the 18-14 AWG, No. 6 ring, vinyl insulated configuration, so there is no finish or size suffix to add.
How fast can I get the Sta-Kon RB857-200 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 RB857-200 come with a warranty?
Absolutely. The Sta-Kon RB857-200 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 RB857-200?
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
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