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Manufacturer Resources
Product Specs
- Application:
- Wiring terminations or connections for applications such as wiring harness, panelboard, telecommunications, and automotive.
- Country Of Origin:
- United States (US)
- Product Subgroup:
- General Terminals
- Product Type:
- Nylon 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 RB874M – Frequently Asked Questions
1) What wire gauge does the Sta-Kon RB874M ring terminal crimp?
The RB874M takes 18 to 14 AWG stranded copper conductor. Blue insulation is the standard color code for that range, so you can sort these out of a mixed bin by sight. Anything 16 AWG or 12 AWG falls outside the barrel and will either not seat or will pull out under tension.
2) What stud or screw size does the RB874M ring fit?
The ring is sized for a No. 10 stud or screw. It will also drop over a smaller 8-32 screw with a washer, but it will not pass a 1/4 inch stud. Check the terminal block or ground lug stud size before you crimp a run of them.
3) Is this ring terminal rated for 600 volt control panel wiring?
Yes. The RB874M nylon insulated ring terminal carries a 600 V rating and is UL listed under file E9809, which covers it for panelboard and control wiring work where an inspector wants a listed termination.
4) Should I use a ring terminal or a fork (spade) terminal on my terminal block?
Use a ring where the connection must not come loose if the screw backs off slightly, such as ground studs, battery and motor terminals, and vibration-prone equipment. The ring has to be slipped over the stud, so the screw must come fully out. A fork terminal slides in sideways under a captive screw and is faster for dense terminal strips you service often. The RB874M is the ring version, sized for No. 10 studs on 18-14 AWG wire.
5) Do I need a special crimper for Sta-Kon insulated terminals?
Crimp these with an insulated-terminal crimper matched to the color code, using the blue nest for the 18-14 AWG range. A plain uninsulated-terminal die or pliers will crush the nylon and give you an unreliable barrel. For a UL listed termination, the tool and die have to suit the terminal, which the RB874M is listed under file E9809.
6) Are Sta-Kon RB874M terminals made in the USA for a government or Buy American job?
Country of origin on the RB874M is the United States, which is the data procurement officers usually need for domestic-content documentation on federal and institutional work.
7) What exact part number do I order to match the blue No. 10 Sta-Kon rings already in my panel?
The manufacturer part number is RB874M from Sta-Kon. That is the expanded-insulation nylon ring, blue, 18-14 AWG, No. 10 stud. Matching the MPN is the only reliable way to keep one crimp die and one color code across a facility.
8) Can I use these on automotive and low-voltage telecom wiring, not just line voltage?
Yes. Sta-Kon lists the RB874M for wiring harness, panelboard, telecommunications and automotive terminations. A 600 V insulated terminal is fine on 12 V or low-voltage signal circuits; the rating is a ceiling, not a requirement.
9) Is the insulation on the RB874M nylon or vinyl, and does that matter for heat?
Nylon, not vinyl. Nylon insulated terminals tolerate higher operating temperature and resist abrasion and oils better, which is why they get used in engine compartments and machine harnesses. The barrel underneath is copper.
How fast can I get the Sta-Kon RB874M delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 RB874M come with a warranty?
Absolutely. The Sta-Kon RB874M 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 RB874M?
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installation tips, and troubleshooting. Contact Us
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