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Ring Terminal
Certifications
- UL
- CSA
Features
- Catalog numbers ending with the suffix X indicate an expanded insulation grip. This means a wider wire entry to accommodate heavy wall insulation. Ring terminals won't fall free even if the mounting screw loosens.
Manufacturer Resources
Product Specs
- Product Finish:
- Electro Tin-Plated
- Product Group:
- Wire Connectors & Terminals
- Department:
- Electrical
- Wire Size:
- 18-14
- Product Color:
- Blue
- Recommended Tool:
- ERG4001
- T B Sold In Uom:
- Each
- Rohs Compliance:
- Yes
- Application Tools:
- WT145C, WT2000, WT112M, ERG4001, ERG4003
- Voltage Rating:
- 600V
- Flammability Rating:
- UL 94 V-0
- Package Type:
- Standard
- Terminal Series:
- RB
- Stock Thickness:
- 0.03
- Order Multiple:
- 100
- Outer Package:
- 500
- Product Subgroup:
- Lugs & Terminals
- Product Material:
- Copper
- Inner Package:
- 100
- Temperature Rating:
- 105°C
- Product Type:
- Ring Terminal
Thomas & Betts 14RB-4X – Frequently Asked Questions
1) What wire size does the Thomas & Betts RB ring terminal take, and why is it blue?
The RB series ring terminal is sized for 18-14 AWG copper wire. Blue is the standard color code for that range, and this one is colored blue accordingly. Barrel and tongue are copper with an electro tin-plated finish.
2) Which stud sizes are available in the 14RB ring terminal?
Four stud sizes: #4 (14RB-4X), #6 (14RB-6), #10 (14RB-10X), and 5/16 inch (14RB-516X). Pick by the screw or stud the ring goes over, not by the wire, since all four take 18-14 AWG.
3) What does the X on the end of a 14RB part number mean?
The X suffix means an expanded insulation grip: a wider wire entry that accepts heavy wall insulation. Of the 14RB stud sizes, the #4, #10 and 5/16 inch are X versions; the #6 (14RB-6) is the standard grip. If you are terminating THHN or another thick-jacket conductor, go with an X.
4) Are these ring terminals rated for 600V control and panel wiring?
Yes. The RB series carries a 600V rating and a 105 degrees C temperature rating, which covers typical control panel, motor connection and fixture whip work. It is UL and CSA recognized, and the insulation is UL 94 V-0 flammability rated.
5) What crimp tool should I use on these T&B RB terminals?
ERG4001 is the recommended tool. Also listed as suitable: WT145C, WT2000, WT112M and ERG4003. Using a die matched to the 18-14 AWG barrel matters here, since an over- or under-crimped nylon-grip terminal is the usual cause of pull-out failures.
6) How do these ship, and is there a minimum order quantity?
Order multiple is 100. Inner packs are 100 pieces and the outer carton holds 500, in standard packaging. Priced and sold each, but you buy in hundreds.
7) Will the ring fall off if the terminal screw backs out?
No. The RB ring tongue is a closed ring, so it stays captive on the stud even if the mounting screw loosens. That is the main reason to choose a ring over a spade or fork terminal on vibration-prone equipment, where a fork can walk right off a loosened screw.
8) Are Thomas & Betts RB ring terminals RoHS compliant for an institutional spec?
Yes, the RB series is RoHS compliant, with an electro tin-plated copper body. That plus the UL and CSA listing usually satisfies government, healthcare and education procurement specs that call out restricted substances.
9) How thick is the tongue on the 14RB ring terminal?
Stock thickness is 0.030 inch. Worth knowing when you are stacking several rings under one nut on a ground bar or terminal stud, since the stack height adds up fast and the screw still has to bottom out with full thread engagement.
How fast can I get the Thomas & Betts 14RB-4X 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 Thomas & Betts 14RB-4X come with a warranty?
Absolutely. The Thomas & Betts 14RB-4X 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 Thomas & Betts 14RB-4X?
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